From 37c0f66305543672fae70e7ce35eb5d8c934c666 Mon Sep 17 00:00:00 2001
From: Christian Felde <cfelde@cfelde.com>
Date: Tue, 21 Jan 2020 09:31:39 +0000
Subject: [PATCH 01/15] Include network details for deployed contract

---
 build/contracts/IAKAP.json | 23 ++++++++++++++++++++++-
 1 file changed, 22 insertions(+), 1 deletion(-)

diff --git a/build/contracts/IAKAP.json b/build/contracts/IAKAP.json
index b05a8ad..56e5fc9 100644
--- a/build/contracts/IAKAP.json
+++ b/build/contracts/IAKAP.json
@@ -6005,7 +6005,28 @@
     "name": "solc",
     "version": "0.5.12+commit.7709ece9.Emscripten.clang"
   },
-  "networks": {},
+  "networks": {
+    "1": {
+      "address": "0xaacCAAB0E85b1EfCEcdBA88F4399fa6CAb402349",
+      "transactionHash": "0x8a1c2b27f7e1d4bfd4793e764337c1c253af79f803a6f113558cabb51c625899"
+    },
+    "3": {
+      "address": "0xaacCAAB0E85b1EfCEcdBA88F4399fa6CAb402349",
+      "transactionHash": "0x66308ba90a40d3e29ee6f9cca0ec85f871cd0d383cf340c21e43686014f64aef"
+    },
+    "4": {
+      "address": "0xaacCAAB0E85b1EfCEcdBA88F4399fa6CAb402349",
+      "transactionHash": "0x66308ba90a40d3e29ee6f9cca0ec85f871cd0d383cf340c21e43686014f64aef"
+    },
+    "5": {
+      "address": "0xaacCAAB0E85b1EfCEcdBA88F4399fa6CAb402349",
+      "transactionHash": "0x66308ba90a40d3e29ee6f9cca0ec85f871cd0d383cf340c21e43686014f64aef"
+    },
+    "42": {
+      "address": "0xaacCAAB0E85b1EfCEcdBA88F4399fa6CAb402349",
+      "transactionHash": "0x66308ba90a40d3e29ee6f9cca0ec85f871cd0d383cf340c21e43686014f64aef"
+    }
+  },
   "schemaVersion": "3.0.19",
   "updatedAt": "2020-01-18T12:39:58.041Z",
   "devdoc": {

From ebe529fad5cb2263b4666d5005a88ea3b02ef6f9 Mon Sep 17 00:00:00 2001
From: Christian Felde <cfelde@cfelde.com>
Date: Tue, 21 Jan 2020 11:20:51 +0000
Subject: [PATCH 02/15] Include deploy test link

---
 README.md | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/README.md b/README.md
index 6e59286..9ab2009 100644
--- a/README.md
+++ b/README.md
@@ -50,4 +50,5 @@ The solc optimizer was enabled with runs = 200.
 
 ## AKAP UI
 
-There's a browser available on [akap.me/browser](https://akap.me/browser), and you can find the repo for this [here](https://github.com/cfelde/AKAP-browser).
\ No newline at end of file
+There's a browser available on [akap.me/browser](https://akap.me/browser), and you can find the repo for this [here](https://github.com/cfelde/AKAP-browser).
+Also, if you want to see how you can get started using AKAP in your web apps, there's a simple [deploy test](https://github.com/cfelde/AKAP-deploy-test) example available.

From 3b5a956ed8a82bbedeea27dfe8022c3c50b24186 Mon Sep 17 00:00:00 2001
From: Christian Felde <cfelde@cfelde.com>
Date: Sun, 26 Jan 2020 16:41:18 +0000
Subject: [PATCH 03/15] Update README with example apps.

---
 README.md | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/README.md b/README.md
index 9ab2009..9bcb3be 100644
--- a/README.md
+++ b/README.md
@@ -48,7 +48,11 @@ macOS Catalina v10.15.2
 
 The solc optimizer was enabled with runs = 200.
 
-## AKAP UI
+## AKAP UI and apps
 
 There's a browser available on [akap.me/browser](https://akap.me/browser), and you can find the repo for this [here](https://github.com/cfelde/AKAP-browser).
 Also, if you want to see how you can get started using AKAP in your web apps, there's a simple [deploy test](https://github.com/cfelde/AKAP-deploy-test) example available.
+
+We're building a list of apps and similar using AKAP. If you have some examples to share, please do.
+
+[Redir.eth URL shortener](https://redir.eth), with [source code](https://github.com/mohamedelshami/AKAP-url-shortener).
\ No newline at end of file

From fbec4bfb00f0f1ae91f4b7fb067eb77c7f2388c2 Mon Sep 17 00:00:00 2001
From: Christian Felde <cfelde@cfelde.com>
Date: Wed, 29 Jan 2020 09:09:53 +0000
Subject: [PATCH 04/15] Minor README update for building locally.

---
 README.md | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/README.md b/README.md
index 9bcb3be..93c28a6 100644
--- a/README.md
+++ b/README.md
@@ -8,11 +8,15 @@ The contract is deployed and is ready for use, see below for details.
 
 Please have a read of the [white paper](WHITEPAPER.md).
 
-## Truffle commands
+## Building locally with Truffle
 
 Assuming you have [Truffle](https://www.trufflesuite.com/) installed
 you can run the usual commands:
 
+`git clone https://github.com/cfelde/AKAP.git`
+
+`cd AKAP`
+
 `truffle build`
 
 `truffle test`

From a80e4cb59f14545a89605e222a5070ad14717000 Mon Sep 17 00:00:00 2001
From: Christian Felde <cfelde@cfelde.com>
Date: Thu, 30 Jan 2020 11:21:42 +0000
Subject: [PATCH 05/15] Include npm details

---
 README.md    | 14 +++++++++++---
 package.json | 34 ++++++++++++++++++++++++++++++++++
 2 files changed, 45 insertions(+), 3 deletions(-)
 create mode 100644 package.json

diff --git a/README.md b/README.md
index 93c28a6..622ea69 100644
--- a/README.md
+++ b/README.md
@@ -23,9 +23,17 @@ you can run the usual commands:
 
 You might need to do:
  
- `npm install @openzeppelin/contracts`
+`npm install @openzeppelin/contracts`
  
- `npm install @openzeppelin/test-helpers`
+`npm install @openzeppelin/test-helpers`
+
+## Using as a library
+
+To use this as a library in your Solidity code, install with npm first:
+
+`npm install akap`
+
+You can find an example with further details on https://github.com/cfelde/Using-AKAP
 
 ## Official build
 
@@ -59,4 +67,4 @@ Also, if you want to see how you can get started using AKAP in your web apps, th
 
 We're building a list of apps and similar using AKAP. If you have some examples to share, please do.
 
-[Redir.eth URL shortener](https://redir.eth), with [source code](https://github.com/mohamedelshami/AKAP-url-shortener).
\ No newline at end of file
+[Redir.eth URL shortener](https://redir.eth), with [source code](https://github.com/mohamedelshami/AKAP-url-shortener).
diff --git a/package.json b/package.json
new file mode 100644
index 0000000..c680e07
--- /dev/null
+++ b/package.json
@@ -0,0 +1,34 @@
+{
+  "name": "akap",
+  "version": "1.0.1",
+  "description": "AKA protocol, the LDAP of Ethereum",
+  "files": [
+    "/contracts/*.sol",
+    "/build/contracts/*.json"
+  ],
+  "repository": {
+    "type": "git",
+    "url": "git+https://github.com/cfelde/AKAP.git"
+  },
+  "keywords": [
+    "solidity",
+    "solidity-contracts",
+    "solidity-dapps",
+    "ethereum",
+    "ethereum-contract",
+    "ethereum-dapp",
+    "AKAP"
+  ],
+  "author": "Christian Felde, Mohamed Elshami",
+  "license": "Apache-2.0",
+  "bugs": {
+    "url": "https://github.com/cfelde/AKAP/issues"
+  },
+  "homepage": "https://akap.me",
+  "devDependencies": {
+    "@openzeppelin/test-helpers": "^0.5.3"
+  },
+  "dependencies": {
+    "@openzeppelin/contracts": "2.3.0"
+  }
+}

From cef0769645821d429b5b6b72724fb1baa83d6191 Mon Sep 17 00:00:00 2001
From: Christian Felde <cfelde@cfelde.com>
Date: Mon, 3 Feb 2020 18:44:04 +0000
Subject: [PATCH 06/15] Configure local development network

---
 truffle-config.js | 10 +++++-----
 1 file changed, 5 insertions(+), 5 deletions(-)

diff --git a/truffle-config.js b/truffle-config.js
index 938e034..3701443 100644
--- a/truffle-config.js
+++ b/truffle-config.js
@@ -42,11 +42,11 @@ module.exports = {
         // tab if you use this network and you must also set the `host`, `port` and `network_id`
         // options below to some value.
         //
-        // development: {
-        //  host: "127.0.0.1",     // Localhost (default: none)
-        //  port: 8545,            // Standard Ethereum port (default: none)
-        //  network_id: "*",       // Any network (default: none)
-        // },
+        development: {
+         host: "127.0.0.1",     // Localhost (default: none)
+         port: 8545,            // Standard Ethereum port (default: none)
+         network_id: "*",       // Any network (default: none)
+        },
 
         // Another network with more advanced options...
         // advanced: {

From e768f999f1855e265f28ed4ae1a482322dfe615a Mon Sep 17 00:00:00 2001
From: Christian Felde <cfelde@cfelde.com>
Date: Tue, 4 Feb 2020 09:02:20 +0000
Subject: [PATCH 07/15] Update README.md

---
 README.md | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/README.md b/README.md
index 622ea69..bdfb42d 100644
--- a/README.md
+++ b/README.md
@@ -33,6 +33,10 @@ To use this as a library in your Solidity code, install with npm first:
 
 `npm install akap`
 
+If you need a local testnet instance of AKAP do:
+
+`truffle deploy --network development`
+
 You can find an example with further details on https://github.com/cfelde/Using-AKAP
 
 ## Official build

From f1657f0dab74dfca16d9cd3c8cae1dd43a47e158 Mon Sep 17 00:00:00 2001
From: Christian Felde <cfelde@cfelde.com>
Date: Tue, 11 Feb 2020 13:55:23 +0000
Subject: [PATCH 08/15] Fix minor comment typo

---
 contracts/IAKAP.sol | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/contracts/IAKAP.sol b/contracts/IAKAP.sol
index 93cbc25..61e5bc9 100644
--- a/contracts/IAKAP.sol
+++ b/contracts/IAKAP.sol
@@ -57,7 +57,7 @@ contract IAKAP {
      * If msg.sender is not the owner but is instead approved "spender" of node, the same logic applies. Only on
      * case 2 and 3 does msg.sender become owner of the node. On case 1 only the expiry is updated.
      *
-     * Whenever the return value is non-zero, the expiry of the node as been set to 52 weeks into the future.
+     * Whenever the return value is non-zero, the expiry of the node has been set to 52 weeks into the future.
      *
      * @param parentId Hash value of parent ID
      * @param label Label of node

From 86721a4c15435727297c7704bb566848ad1398da Mon Sep 17 00:00:00 2001
From: Christian Felde <cfelde@cfelde.com>
Date: Tue, 11 Feb 2020 22:33:35 +0000
Subject: [PATCH 09/15] README updates

---
 README.md | 18 +++++++++++++-----
 1 file changed, 13 insertions(+), 5 deletions(-)

diff --git a/README.md b/README.md
index 622ea69..2234190 100644
--- a/README.md
+++ b/README.md
@@ -1,12 +1,20 @@
 # AKAP
 
-The AKA protocol is somewhat like LDAP for Ethereum. It allows you to
-reference content and data, and also navigate structures in the context
-of nodes and a directed acyclic graph.
+The [AKA protocol](https://akap.me) (AKAP) is an idea, a specification, and a set of smart contracts written for the Ethereum blockchain. It tackles a challenge seen on blockchains related to immutability and how you write code to handle such an environment.
 
-The contract is deployed and is ready for use, see below for details.
+In short the challenge facing blockchain developers is that when they deploy code others depend on, there's no easy upgrade path. The location of the code is tied in with the location of storage, and if you want to upgrade your code you can't easily take this storage with you. Deploying a new version would force everyone who depend on it to change their references, not to mention the pain of repopulating existing data.
 
-Please have a read of the [white paper](WHITEPAPER.md).
+Eternal storage is a pattern that AKAP can help you leverage, where the idea is to keep your storage separate from your code.
+
+Please see the [documentation](https://akap.me/docs) for more in depth material.
+
+## Repositories
+
+This repository contains the AKAP registry contract. Other related repositories:
+
+[AKAP utils](https://github.com/cfelde/AKAP-utils) <br/>
+[AKAP docs](https://github.com/cfelde/AKAP-docs) <br/>
+[AKAP browser](https://github.com/cfelde/AKAP-browser) <br/>
 
 ## Building locally with Truffle
 

From ee3dffe5dd79f933a7eef57ebaf6a85911872066 Mon Sep 17 00:00:00 2001
From: Christian Felde <cfelde@cfelde.com>
Date: Thu, 20 Feb 2020 16:13:00 +0000
Subject: [PATCH 10/15] Formatting

---
 truffle-config.js | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/truffle-config.js b/truffle-config.js
index 3701443..17cc3b1 100644
--- a/truffle-config.js
+++ b/truffle-config.js
@@ -43,9 +43,9 @@ module.exports = {
         // options below to some value.
         //
         development: {
-         host: "127.0.0.1",     // Localhost (default: none)
-         port: 8545,            // Standard Ethereum port (default: none)
-         network_id: "*",       // Any network (default: none)
+            host: "127.0.0.1",     // Localhost (default: none)
+            port: 8545,            // Standard Ethereum port (default: none)
+            network_id: "*",       // Any network (default: none)
         },
 
         // Another network with more advanced options...

From a410e6806156b20748c9c897637f0cb5d4304992 Mon Sep 17 00:00:00 2001
From: Christian Felde <cfelde@cfelde.com>
Date: Thu, 20 Feb 2020 16:14:45 +0000
Subject: [PATCH 11/15] Add "Using AKAP" repo link

---
 README.md | 1 +
 1 file changed, 1 insertion(+)

diff --git a/README.md b/README.md
index 2479114..20cecef 100644
--- a/README.md
+++ b/README.md
@@ -15,6 +15,7 @@ This repository contains the AKAP registry contract. Other related repositories:
 [AKAP utils](https://github.com/cfelde/AKAP-utils) <br/>
 [AKAP docs](https://github.com/cfelde/AKAP-docs) <br/>
 [AKAP browser](https://github.com/cfelde/AKAP-browser) <br/>
+[Using AKAP](https://github.com/cfelde/Using-AKAP) <br/>
 
 ## Building locally with Truffle
 

From 6927cc256279c0756ed912c2958f20fcd74cb92b Mon Sep 17 00:00:00 2001
From: Christian Felde <cfelde@cfelde.com>
Date: Thu, 20 Feb 2020 16:15:19 +0000
Subject: [PATCH 12/15] NPM publish

---
 package.json | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/package.json b/package.json
index c680e07..19156c0 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "akap",
-  "version": "1.0.1",
+  "version": "1.0.2",
   "description": "AKA protocol, the LDAP of Ethereum",
   "files": [
     "/contracts/*.sol",

From 4bdddfc41ceb144b610b33b0ded857dbaba50081 Mon Sep 17 00:00:00 2001
From: Christian Felde <cfelde@cfelde.com>
Date: Tue, 28 Apr 2020 14:22:57 +0100
Subject: [PATCH 13/15] Include Million DAI link

---
 README.md | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/README.md b/README.md
index 20cecef..0e5eca5 100644
--- a/README.md
+++ b/README.md
@@ -81,3 +81,5 @@ Also, if you want to see how you can get started using AKAP in your web apps, th
 We're building a list of apps and similar using AKAP. If you have some examples to share, please do.
 
 [Redir.eth URL shortener](https://redir.eth), with [source code](https://github.com/mohamedelshami/AKAP-url-shortener).
+
+[The Million DAI Website](https://milliondai.website)
\ No newline at end of file

From 8e9cc4d120f32287b652cf5b162147dc198709ea Mon Sep 17 00:00:00 2001
From: Christian Felde <cfelde@cfelde.com>
Date: Tue, 12 May 2020 11:04:47 +0100
Subject: [PATCH 14/15] Introduce AKAF with v1.1.0

---
 README.md                        |     2 +-
 build/contracts/AKAF.json        | 15839 +++++++++++++++++++++++++++++
 contracts/AKAF.sol               |   161 +
 migrations/2_deploy_contracts.js |     2 +
 package.json                     |     2 +-
 test/akaf.js                     |   341 +
 test/akaf_events.js              |   192 +
 test/akap.js                     |    24 +
 8 files changed, 16561 insertions(+), 2 deletions(-)
 create mode 100644 build/contracts/AKAF.json
 create mode 100644 contracts/AKAF.sol
 create mode 100644 test/akaf.js
 create mode 100644 test/akaf_events.js

diff --git a/README.md b/README.md
index 0e5eca5..cfe7cb1 100644
--- a/README.md
+++ b/README.md
@@ -10,7 +10,7 @@ Please see the [documentation](https://akap.me/docs) for more in depth material.
 
 ## Repositories
 
-This repository contains the AKAP registry contract. Other related repositories:
+This repository contains the AKAP and AKAF registry contracts. Other related repositories:
 
 [AKAP utils](https://github.com/cfelde/AKAP-utils) <br/>
 [AKAP docs](https://github.com/cfelde/AKAP-docs) <br/>
diff --git a/build/contracts/AKAF.json b/build/contracts/AKAF.json
new file mode 100644
index 0000000..ad917ac
--- /dev/null
+++ b/build/contracts/AKAF.json
@@ -0,0 +1,15839 @@
+{
+  "contractName": "AKAF",
+  "abi": [
+    {
+      "inputs": [],
+      "payable": false,
+      "stateMutability": "nonpayable",
+      "type": "constructor"
+    },
+    {
+      "anonymous": false,
+      "inputs": [
+        {
+          "indexed": true,
+          "internalType": "address",
+          "name": "owner",
+          "type": "address"
+        },
+        {
+          "indexed": true,
+          "internalType": "address",
+          "name": "approved",
+          "type": "address"
+        },
+        {
+          "indexed": true,
+          "internalType": "uint256",
+          "name": "tokenId",
+          "type": "uint256"
+        }
+      ],
+      "name": "Approval",
+      "type": "event"
+    },
+    {
+      "anonymous": false,
+      "inputs": [
+        {
+          "indexed": true,
+          "internalType": "address",
+          "name": "owner",
+          "type": "address"
+        },
+        {
+          "indexed": true,
+          "internalType": "address",
+          "name": "operator",
+          "type": "address"
+        },
+        {
+          "indexed": false,
+          "internalType": "bool",
+          "name": "approved",
+          "type": "bool"
+        }
+      ],
+      "name": "ApprovalForAll",
+      "type": "event"
+    },
+    {
+      "anonymous": false,
+      "inputs": [
+        {
+          "indexed": true,
+          "internalType": "address",
+          "name": "sender",
+          "type": "address"
+        },
+        {
+          "indexed": true,
+          "internalType": "uint256",
+          "name": "nodeId",
+          "type": "uint256"
+        },
+        {
+          "indexed": false,
+          "internalType": "enum IAKAP.NodeAttribute",
+          "name": "attribute",
+          "type": "uint8"
+        }
+      ],
+      "name": "AttributeChanged",
+      "type": "event"
+    },
+    {
+      "anonymous": false,
+      "inputs": [
+        {
+          "indexed": true,
+          "internalType": "address",
+          "name": "sender",
+          "type": "address"
+        },
+        {
+          "indexed": true,
+          "internalType": "uint256",
+          "name": "nodeId",
+          "type": "uint256"
+        },
+        {
+          "indexed": true,
+          "internalType": "uint256",
+          "name": "parentId",
+          "type": "uint256"
+        },
+        {
+          "indexed": false,
+          "internalType": "bytes",
+          "name": "label",
+          "type": "bytes"
+        },
+        {
+          "indexed": false,
+          "internalType": "enum IAKAP.ClaimCase",
+          "name": "claimCase",
+          "type": "uint8"
+        }
+      ],
+      "name": "Claim",
+      "type": "event"
+    },
+    {
+      "anonymous": false,
+      "inputs": [
+        {
+          "indexed": true,
+          "internalType": "address",
+          "name": "from",
+          "type": "address"
+        },
+        {
+          "indexed": true,
+          "internalType": "address",
+          "name": "to",
+          "type": "address"
+        },
+        {
+          "indexed": true,
+          "internalType": "uint256",
+          "name": "tokenId",
+          "type": "uint256"
+        }
+      ],
+      "name": "Transfer",
+      "type": "event"
+    },
+    {
+      "constant": false,
+      "inputs": [
+        {
+          "internalType": "address",
+          "name": "to",
+          "type": "address"
+        },
+        {
+          "internalType": "uint256",
+          "name": "tokenId",
+          "type": "uint256"
+        }
+      ],
+      "name": "approve",
+      "outputs": [],
+      "payable": false,
+      "stateMutability": "nonpayable",
+      "type": "function"
+    },
+    {
+      "constant": true,
+      "inputs": [
+        {
+          "internalType": "address",
+          "name": "owner",
+          "type": "address"
+        }
+      ],
+      "name": "balanceOf",
+      "outputs": [
+        {
+          "internalType": "uint256",
+          "name": "",
+          "type": "uint256"
+        }
+      ],
+      "payable": false,
+      "stateMutability": "view",
+      "type": "function"
+    },
+    {
+      "constant": true,
+      "inputs": [
+        {
+          "internalType": "uint256",
+          "name": "tokenId",
+          "type": "uint256"
+        }
+      ],
+      "name": "getApproved",
+      "outputs": [
+        {
+          "internalType": "address",
+          "name": "",
+          "type": "address"
+        }
+      ],
+      "payable": false,
+      "stateMutability": "view",
+      "type": "function"
+    },
+    {
+      "constant": true,
+      "inputs": [
+        {
+          "internalType": "address",
+          "name": "owner",
+          "type": "address"
+        },
+        {
+          "internalType": "address",
+          "name": "operator",
+          "type": "address"
+        }
+      ],
+      "name": "isApprovedForAll",
+      "outputs": [
+        {
+          "internalType": "bool",
+          "name": "",
+          "type": "bool"
+        }
+      ],
+      "payable": false,
+      "stateMutability": "view",
+      "type": "function"
+    },
+    {
+      "constant": true,
+      "inputs": [],
+      "name": "name",
+      "outputs": [
+        {
+          "internalType": "string",
+          "name": "",
+          "type": "string"
+        }
+      ],
+      "payable": false,
+      "stateMutability": "view",
+      "type": "function"
+    },
+    {
+      "constant": true,
+      "inputs": [
+        {
+          "internalType": "uint256",
+          "name": "tokenId",
+          "type": "uint256"
+        }
+      ],
+      "name": "ownerOf",
+      "outputs": [
+        {
+          "internalType": "address",
+          "name": "",
+          "type": "address"
+        }
+      ],
+      "payable": false,
+      "stateMutability": "view",
+      "type": "function"
+    },
+    {
+      "constant": false,
+      "inputs": [
+        {
+          "internalType": "address",
+          "name": "from",
+          "type": "address"
+        },
+        {
+          "internalType": "address",
+          "name": "to",
+          "type": "address"
+        },
+        {
+          "internalType": "uint256",
+          "name": "tokenId",
+          "type": "uint256"
+        }
+      ],
+      "name": "safeTransferFrom",
+      "outputs": [],
+      "payable": false,
+      "stateMutability": "nonpayable",
+      "type": "function"
+    },
+    {
+      "constant": false,
+      "inputs": [
+        {
+          "internalType": "address",
+          "name": "from",
+          "type": "address"
+        },
+        {
+          "internalType": "address",
+          "name": "to",
+          "type": "address"
+        },
+        {
+          "internalType": "uint256",
+          "name": "tokenId",
+          "type": "uint256"
+        },
+        {
+          "internalType": "bytes",
+          "name": "_data",
+          "type": "bytes"
+        }
+      ],
+      "name": "safeTransferFrom",
+      "outputs": [],
+      "payable": false,
+      "stateMutability": "nonpayable",
+      "type": "function"
+    },
+    {
+      "constant": false,
+      "inputs": [
+        {
+          "internalType": "address",
+          "name": "to",
+          "type": "address"
+        },
+        {
+          "internalType": "bool",
+          "name": "approved",
+          "type": "bool"
+        }
+      ],
+      "name": "setApprovalForAll",
+      "outputs": [],
+      "payable": false,
+      "stateMutability": "nonpayable",
+      "type": "function"
+    },
+    {
+      "constant": true,
+      "inputs": [
+        {
+          "internalType": "bytes4",
+          "name": "interfaceId",
+          "type": "bytes4"
+        }
+      ],
+      "name": "supportsInterface",
+      "outputs": [
+        {
+          "internalType": "bool",
+          "name": "",
+          "type": "bool"
+        }
+      ],
+      "payable": false,
+      "stateMutability": "view",
+      "type": "function"
+    },
+    {
+      "constant": true,
+      "inputs": [],
+      "name": "symbol",
+      "outputs": [
+        {
+          "internalType": "string",
+          "name": "",
+          "type": "string"
+        }
+      ],
+      "payable": false,
+      "stateMutability": "view",
+      "type": "function"
+    },
+    {
+      "constant": true,
+      "inputs": [
+        {
+          "internalType": "uint256",
+          "name": "index",
+          "type": "uint256"
+        }
+      ],
+      "name": "tokenByIndex",
+      "outputs": [
+        {
+          "internalType": "uint256",
+          "name": "",
+          "type": "uint256"
+        }
+      ],
+      "payable": false,
+      "stateMutability": "view",
+      "type": "function"
+    },
+    {
+      "constant": true,
+      "inputs": [
+        {
+          "internalType": "address",
+          "name": "owner",
+          "type": "address"
+        },
+        {
+          "internalType": "uint256",
+          "name": "index",
+          "type": "uint256"
+        }
+      ],
+      "name": "tokenOfOwnerByIndex",
+      "outputs": [
+        {
+          "internalType": "uint256",
+          "name": "",
+          "type": "uint256"
+        }
+      ],
+      "payable": false,
+      "stateMutability": "view",
+      "type": "function"
+    },
+    {
+      "constant": true,
+      "inputs": [
+        {
+          "internalType": "uint256",
+          "name": "tokenId",
+          "type": "uint256"
+        }
+      ],
+      "name": "tokenURI",
+      "outputs": [
+        {
+          "internalType": "string",
+          "name": "",
+          "type": "string"
+        }
+      ],
+      "payable": false,
+      "stateMutability": "view",
+      "type": "function"
+    },
+    {
+      "constant": true,
+      "inputs": [],
+      "name": "totalSupply",
+      "outputs": [
+        {
+          "internalType": "uint256",
+          "name": "",
+          "type": "uint256"
+        }
+      ],
+      "payable": false,
+      "stateMutability": "view",
+      "type": "function"
+    },
+    {
+      "constant": false,
+      "inputs": [
+        {
+          "internalType": "address",
+          "name": "from",
+          "type": "address"
+        },
+        {
+          "internalType": "address",
+          "name": "to",
+          "type": "address"
+        },
+        {
+          "internalType": "uint256",
+          "name": "tokenId",
+          "type": "uint256"
+        }
+      ],
+      "name": "transferFrom",
+      "outputs": [],
+      "payable": false,
+      "stateMutability": "nonpayable",
+      "type": "function"
+    },
+    {
+      "constant": true,
+      "inputs": [
+        {
+          "internalType": "uint256",
+          "name": "parentId",
+          "type": "uint256"
+        },
+        {
+          "internalType": "bytes",
+          "name": "label",
+          "type": "bytes"
+        }
+      ],
+      "name": "hashOf",
+      "outputs": [
+        {
+          "internalType": "uint256",
+          "name": "id",
+          "type": "uint256"
+        }
+      ],
+      "payable": false,
+      "stateMutability": "pure",
+      "type": "function"
+    },
+    {
+      "constant": false,
+      "inputs": [
+        {
+          "internalType": "uint256",
+          "name": "parentId",
+          "type": "uint256"
+        },
+        {
+          "internalType": "bytes",
+          "name": "label",
+          "type": "bytes"
+        }
+      ],
+      "name": "claim",
+      "outputs": [
+        {
+          "internalType": "uint256",
+          "name": "status",
+          "type": "uint256"
+        }
+      ],
+      "payable": false,
+      "stateMutability": "nonpayable",
+      "type": "function"
+    },
+    {
+      "constant": true,
+      "inputs": [
+        {
+          "internalType": "uint256",
+          "name": "nodeId",
+          "type": "uint256"
+        }
+      ],
+      "name": "exists",
+      "outputs": [
+        {
+          "internalType": "bool",
+          "name": "",
+          "type": "bool"
+        }
+      ],
+      "payable": false,
+      "stateMutability": "view",
+      "type": "function"
+    },
+    {
+      "constant": true,
+      "inputs": [
+        {
+          "internalType": "uint256",
+          "name": "nodeId",
+          "type": "uint256"
+        }
+      ],
+      "name": "isApprovedOrOwner",
+      "outputs": [
+        {
+          "internalType": "bool",
+          "name": "",
+          "type": "bool"
+        }
+      ],
+      "payable": false,
+      "stateMutability": "view",
+      "type": "function"
+    },
+    {
+      "constant": true,
+      "inputs": [
+        {
+          "internalType": "uint256",
+          "name": "nodeId",
+          "type": "uint256"
+        }
+      ],
+      "name": "parentOf",
+      "outputs": [
+        {
+          "internalType": "uint256",
+          "name": "",
+          "type": "uint256"
+        }
+      ],
+      "payable": false,
+      "stateMutability": "view",
+      "type": "function"
+    },
+    {
+      "constant": true,
+      "inputs": [
+        {
+          "internalType": "uint256",
+          "name": "nodeId",
+          "type": "uint256"
+        }
+      ],
+      "name": "expiryOf",
+      "outputs": [
+        {
+          "internalType": "uint256",
+          "name": "",
+          "type": "uint256"
+        }
+      ],
+      "payable": false,
+      "stateMutability": "view",
+      "type": "function"
+    },
+    {
+      "constant": true,
+      "inputs": [
+        {
+          "internalType": "uint256",
+          "name": "nodeId",
+          "type": "uint256"
+        }
+      ],
+      "name": "seeAlso",
+      "outputs": [
+        {
+          "internalType": "uint256",
+          "name": "",
+          "type": "uint256"
+        }
+      ],
+      "payable": false,
+      "stateMutability": "view",
+      "type": "function"
+    },
+    {
+      "constant": true,
+      "inputs": [
+        {
+          "internalType": "uint256",
+          "name": "nodeId",
+          "type": "uint256"
+        }
+      ],
+      "name": "seeAddress",
+      "outputs": [
+        {
+          "internalType": "address",
+          "name": "",
+          "type": "address"
+        }
+      ],
+      "payable": false,
+      "stateMutability": "view",
+      "type": "function"
+    },
+    {
+      "constant": true,
+      "inputs": [
+        {
+          "internalType": "uint256",
+          "name": "nodeId",
+          "type": "uint256"
+        }
+      ],
+      "name": "nodeBody",
+      "outputs": [
+        {
+          "internalType": "bytes",
+          "name": "",
+          "type": "bytes"
+        }
+      ],
+      "payable": false,
+      "stateMutability": "view",
+      "type": "function"
+    },
+    {
+      "constant": false,
+      "inputs": [
+        {
+          "internalType": "uint256",
+          "name": "nodeId",
+          "type": "uint256"
+        }
+      ],
+      "name": "expireNode",
+      "outputs": [],
+      "payable": false,
+      "stateMutability": "nonpayable",
+      "type": "function"
+    },
+    {
+      "constant": false,
+      "inputs": [
+        {
+          "internalType": "uint256",
+          "name": "nodeId",
+          "type": "uint256"
+        },
+        {
+          "internalType": "uint256",
+          "name": "value",
+          "type": "uint256"
+        }
+      ],
+      "name": "setSeeAlso",
+      "outputs": [],
+      "payable": false,
+      "stateMutability": "nonpayable",
+      "type": "function"
+    },
+    {
+      "constant": false,
+      "inputs": [
+        {
+          "internalType": "uint256",
+          "name": "nodeId",
+          "type": "uint256"
+        },
+        {
+          "internalType": "address",
+          "name": "value",
+          "type": "address"
+        }
+      ],
+      "name": "setSeeAddress",
+      "outputs": [],
+      "payable": false,
+      "stateMutability": "nonpayable",
+      "type": "function"
+    },
+    {
+      "constant": false,
+      "inputs": [
+        {
+          "internalType": "uint256",
+          "name": "nodeId",
+          "type": "uint256"
+        },
+        {
+          "internalType": "bytes",
+          "name": "value",
+          "type": "bytes"
+        }
+      ],
+      "name": "setNodeBody",
+      "outputs": [],
+      "payable": false,
+      "stateMutability": "nonpayable",
+      "type": "function"
+    },
+    {
+      "constant": false,
+      "inputs": [
+        {
+          "internalType": "uint256",
+          "name": "nodeId",
+          "type": "uint256"
+        },
+        {
+          "internalType": "string",
+          "name": "uri",
+          "type": "string"
+        }
+      ],
+      "name": "setTokenURI",
+      "outputs": [],
+      "payable": false,
+      "stateMutability": "nonpayable",
+      "type": "function"
+    }
+  ],
+  "metadata": "{\"compiler\":{\"version\":\"0.5.16+commit.9c3226ce\"},\"language\":\"Solidity\",\"output\":{\"abi\":[{\"inputs\":[],\"payable\":false,\"stateMutability\":\"nonpayable\",\"type\":\"constructor\"},{\"anonymous\":false,\"inputs\":[{\"indexed\":true,\"internalType\":\"address\",\"name\":\"owner\",\"type\":\"address\"},{\"indexed\":true,\"internalType\":\"address\",\"name\":\"approved\",\"type\":\"address\"},{\"indexed\":true,\"internalType\":\"uint256\",\"name\":\"tokenId\",\"type\":\"uint256\"}],\"name\":\"Approval\",\"type\":\"event\"},{\"anonymous\":false,\"inputs\":[{\"indexed\":true,\"internalType\":\"address\",\"name\":\"owner\",\"type\":\"address\"},{\"indexed\":true,\"internalType\":\"address\",\"name\":\"operator\",\"type\":\"address\"},{\"indexed\":false,\"internalType\":\"bool\",\"name\":\"approved\",\"type\":\"bool\"}],\"name\":\"ApprovalForAll\",\"type\":\"event\"},{\"anonymous\":false,\"inputs\":[{\"indexed\":true,\"internalType\":\"address\",\"name\":\"sender\",\"type\":\"address\"},{\"indexed\":true,\"internalType\":\"uint256\",\"name\":\"nodeId\",\"type\":\"uint256\"},{\"indexed\":false,\"internalType\":\"enum IAKAP.NodeAttribute\",\"name\":\"attribute\",\"type\":\"uint8\"}],\"name\":\"AttributeChanged\",\"type\":\"event\"},{\"anonymous\":false,\"inputs\":[{\"indexed\":true,\"internalType\":\"address\",\"name\":\"sender\",\"type\":\"address\"},{\"indexed\":true,\"internalType\":\"uint256\",\"name\":\"nodeId\",\"type\":\"uint256\"},{\"indexed\":true,\"internalType\":\"uint256\",\"name\":\"parentId\",\"type\":\"uint256\"},{\"indexed\":false,\"internalType\":\"bytes\",\"name\":\"label\",\"type\":\"bytes\"},{\"indexed\":false,\"internalType\":\"enum IAKAP.ClaimCase\",\"name\":\"claimCase\",\"type\":\"uint8\"}],\"name\":\"Claim\",\"type\":\"event\"},{\"anonymous\":false,\"inputs\":[{\"indexed\":true,\"internalType\":\"address\",\"name\":\"from\",\"type\":\"address\"},{\"indexed\":true,\"internalType\":\"address\",\"name\":\"to\",\"type\":\"address\"},{\"indexed\":true,\"internalType\":\"uint256\",\"name\":\"tokenId\",\"type\":\"uint256\"}],\"name\":\"Transfer\",\"type\":\"event\"},{\"constant\":false,\"inputs\":[{\"internalType\":\"address\",\"name\":\"to\",\"type\":\"address\"},{\"internalType\":\"uint256\",\"name\":\"tokenId\",\"type\":\"uint256\"}],\"name\":\"approve\",\"outputs\":[],\"payable\":false,\"stateMutability\":\"nonpayable\",\"type\":\"function\"},{\"constant\":true,\"inputs\":[{\"internalType\":\"address\",\"name\":\"owner\",\"type\":\"address\"}],\"name\":\"balanceOf\",\"outputs\":[{\"internalType\":\"uint256\",\"name\":\"\",\"type\":\"uint256\"}],\"payable\":false,\"stateMutability\":\"view\",\"type\":\"function\"},{\"constant\":false,\"inputs\":[{\"internalType\":\"uint256\",\"name\":\"parentId\",\"type\":\"uint256\"},{\"internalType\":\"bytes\",\"name\":\"label\",\"type\":\"bytes\"}],\"name\":\"claim\",\"outputs\":[{\"internalType\":\"uint256\",\"name\":\"status\",\"type\":\"uint256\"}],\"payable\":false,\"stateMutability\":\"nonpayable\",\"type\":\"function\"},{\"constant\":true,\"inputs\":[{\"internalType\":\"uint256\",\"name\":\"nodeId\",\"type\":\"uint256\"}],\"name\":\"exists\",\"outputs\":[{\"internalType\":\"bool\",\"name\":\"\",\"type\":\"bool\"}],\"payable\":false,\"stateMutability\":\"view\",\"type\":\"function\"},{\"constant\":false,\"inputs\":[{\"internalType\":\"uint256\",\"name\":\"nodeId\",\"type\":\"uint256\"}],\"name\":\"expireNode\",\"outputs\":[],\"payable\":false,\"stateMutability\":\"nonpayable\",\"type\":\"function\"},{\"constant\":true,\"inputs\":[{\"internalType\":\"uint256\",\"name\":\"nodeId\",\"type\":\"uint256\"}],\"name\":\"expiryOf\",\"outputs\":[{\"internalType\":\"uint256\",\"name\":\"\",\"type\":\"uint256\"}],\"payable\":false,\"stateMutability\":\"view\",\"type\":\"function\"},{\"constant\":true,\"inputs\":[{\"internalType\":\"uint256\",\"name\":\"tokenId\",\"type\":\"uint256\"}],\"name\":\"getApproved\",\"outputs\":[{\"internalType\":\"address\",\"name\":\"\",\"type\":\"address\"}],\"payable\":false,\"stateMutability\":\"view\",\"type\":\"function\"},{\"constant\":true,\"inputs\":[{\"internalType\":\"uint256\",\"name\":\"parentId\",\"type\":\"uint256\"},{\"internalType\":\"bytes\",\"name\":\"label\",\"type\":\"bytes\"}],\"name\":\"hashOf\",\"outputs\":[{\"internalType\":\"uint256\",\"name\":\"id\",\"type\":\"uint256\"}],\"payable\":false,\"stateMutability\":\"pure\",\"type\":\"function\"},{\"constant\":true,\"inputs\":[{\"internalType\":\"address\",\"name\":\"owner\",\"type\":\"address\"},{\"internalType\":\"address\",\"name\":\"operator\",\"type\":\"address\"}],\"name\":\"isApprovedForAll\",\"outputs\":[{\"internalType\":\"bool\",\"name\":\"\",\"type\":\"bool\"}],\"payable\":false,\"stateMutability\":\"view\",\"type\":\"function\"},{\"constant\":true,\"inputs\":[{\"internalType\":\"uint256\",\"name\":\"nodeId\",\"type\":\"uint256\"}],\"name\":\"isApprovedOrOwner\",\"outputs\":[{\"internalType\":\"bool\",\"name\":\"\",\"type\":\"bool\"}],\"payable\":false,\"stateMutability\":\"view\",\"type\":\"function\"},{\"constant\":true,\"inputs\":[],\"name\":\"name\",\"outputs\":[{\"internalType\":\"string\",\"name\":\"\",\"type\":\"string\"}],\"payable\":false,\"stateMutability\":\"view\",\"type\":\"function\"},{\"constant\":true,\"inputs\":[{\"internalType\":\"uint256\",\"name\":\"nodeId\",\"type\":\"uint256\"}],\"name\":\"nodeBody\",\"outputs\":[{\"internalType\":\"bytes\",\"name\":\"\",\"type\":\"bytes\"}],\"payable\":false,\"stateMutability\":\"view\",\"type\":\"function\"},{\"constant\":true,\"inputs\":[{\"internalType\":\"uint256\",\"name\":\"tokenId\",\"type\":\"uint256\"}],\"name\":\"ownerOf\",\"outputs\":[{\"internalType\":\"address\",\"name\":\"\",\"type\":\"address\"}],\"payable\":false,\"stateMutability\":\"view\",\"type\":\"function\"},{\"constant\":true,\"inputs\":[{\"internalType\":\"uint256\",\"name\":\"nodeId\",\"type\":\"uint256\"}],\"name\":\"parentOf\",\"outputs\":[{\"internalType\":\"uint256\",\"name\":\"\",\"type\":\"uint256\"}],\"payable\":false,\"stateMutability\":\"view\",\"type\":\"function\"},{\"constant\":false,\"inputs\":[{\"internalType\":\"address\",\"name\":\"from\",\"type\":\"address\"},{\"internalType\":\"address\",\"name\":\"to\",\"type\":\"address\"},{\"internalType\":\"uint256\",\"name\":\"tokenId\",\"type\":\"uint256\"}],\"name\":\"safeTransferFrom\",\"outputs\":[],\"payable\":false,\"stateMutability\":\"nonpayable\",\"type\":\"function\"},{\"constant\":false,\"inputs\":[{\"internalType\":\"address\",\"name\":\"from\",\"type\":\"address\"},{\"internalType\":\"address\",\"name\":\"to\",\"type\":\"address\"},{\"internalType\":\"uint256\",\"name\":\"tokenId\",\"type\":\"uint256\"},{\"internalType\":\"bytes\",\"name\":\"_data\",\"type\":\"bytes\"}],\"name\":\"safeTransferFrom\",\"outputs\":[],\"payable\":false,\"stateMutability\":\"nonpayable\",\"type\":\"function\"},{\"constant\":true,\"inputs\":[{\"internalType\":\"uint256\",\"name\":\"nodeId\",\"type\":\"uint256\"}],\"name\":\"seeAddress\",\"outputs\":[{\"internalType\":\"address\",\"name\":\"\",\"type\":\"address\"}],\"payable\":false,\"stateMutability\":\"view\",\"type\":\"function\"},{\"constant\":true,\"inputs\":[{\"internalType\":\"uint256\",\"name\":\"nodeId\",\"type\":\"uint256\"}],\"name\":\"seeAlso\",\"outputs\":[{\"internalType\":\"uint256\",\"name\":\"\",\"type\":\"uint256\"}],\"payable\":false,\"stateMutability\":\"view\",\"type\":\"function\"},{\"constant\":false,\"inputs\":[{\"internalType\":\"address\",\"name\":\"to\",\"type\":\"address\"},{\"internalType\":\"bool\",\"name\":\"approved\",\"type\":\"bool\"}],\"name\":\"setApprovalForAll\",\"outputs\":[],\"payable\":false,\"stateMutability\":\"nonpayable\",\"type\":\"function\"},{\"constant\":false,\"inputs\":[{\"internalType\":\"uint256\",\"name\":\"nodeId\",\"type\":\"uint256\"},{\"internalType\":\"bytes\",\"name\":\"value\",\"type\":\"bytes\"}],\"name\":\"setNodeBody\",\"outputs\":[],\"payable\":false,\"stateMutability\":\"nonpayable\",\"type\":\"function\"},{\"constant\":false,\"inputs\":[{\"internalType\":\"uint256\",\"name\":\"nodeId\",\"type\":\"uint256\"},{\"internalType\":\"address\",\"name\":\"value\",\"type\":\"address\"}],\"name\":\"setSeeAddress\",\"outputs\":[],\"payable\":false,\"stateMutability\":\"nonpayable\",\"type\":\"function\"},{\"constant\":false,\"inputs\":[{\"internalType\":\"uint256\",\"name\":\"nodeId\",\"type\":\"uint256\"},{\"internalType\":\"uint256\",\"name\":\"value\",\"type\":\"uint256\"}],\"name\":\"setSeeAlso\",\"outputs\":[],\"payable\":false,\"stateMutability\":\"nonpayable\",\"type\":\"function\"},{\"constant\":false,\"inputs\":[{\"internalType\":\"uint256\",\"name\":\"nodeId\",\"type\":\"uint256\"},{\"internalType\":\"string\",\"name\":\"uri\",\"type\":\"string\"}],\"name\":\"setTokenURI\",\"outputs\":[],\"payable\":false,\"stateMutability\":\"nonpayable\",\"type\":\"function\"},{\"constant\":true,\"inputs\":[{\"internalType\":\"bytes4\",\"name\":\"interfaceId\",\"type\":\"bytes4\"}],\"name\":\"supportsInterface\",\"outputs\":[{\"internalType\":\"bool\",\"name\":\"\",\"type\":\"bool\"}],\"payable\":false,\"stateMutability\":\"view\",\"type\":\"function\"},{\"constant\":true,\"inputs\":[],\"name\":\"symbol\",\"outputs\":[{\"internalType\":\"string\",\"name\":\"\",\"type\":\"string\"}],\"payable\":false,\"stateMutability\":\"view\",\"type\":\"function\"},{\"constant\":true,\"inputs\":[{\"internalType\":\"uint256\",\"name\":\"index\",\"type\":\"uint256\"}],\"name\":\"tokenByIndex\",\"outputs\":[{\"internalType\":\"uint256\",\"name\":\"\",\"type\":\"uint256\"}],\"payable\":false,\"stateMutability\":\"view\",\"type\":\"function\"},{\"constant\":true,\"inputs\":[{\"internalType\":\"address\",\"name\":\"owner\",\"type\":\"address\"},{\"internalType\":\"uint256\",\"name\":\"index\",\"type\":\"uint256\"}],\"name\":\"tokenOfOwnerByIndex\",\"outputs\":[{\"internalType\":\"uint256\",\"name\":\"\",\"type\":\"uint256\"}],\"payable\":false,\"stateMutability\":\"view\",\"type\":\"function\"},{\"constant\":true,\"inputs\":[{\"internalType\":\"uint256\",\"name\":\"tokenId\",\"type\":\"uint256\"}],\"name\":\"tokenURI\",\"outputs\":[{\"internalType\":\"string\",\"name\":\"\",\"type\":\"string\"}],\"payable\":false,\"stateMutability\":\"view\",\"type\":\"function\"},{\"constant\":true,\"inputs\":[],\"name\":\"totalSupply\",\"outputs\":[{\"internalType\":\"uint256\",\"name\":\"\",\"type\":\"uint256\"}],\"payable\":false,\"stateMutability\":\"view\",\"type\":\"function\"},{\"constant\":false,\"inputs\":[{\"internalType\":\"address\",\"name\":\"from\",\"type\":\"address\"},{\"internalType\":\"address\",\"name\":\"to\",\"type\":\"address\"},{\"internalType\":\"uint256\",\"name\":\"tokenId\",\"type\":\"uint256\"}],\"name\":\"transferFrom\",\"outputs\":[],\"payable\":false,\"stateMutability\":\"nonpayable\",\"type\":\"function\"}],\"devdoc\":{\"methods\":{\"approve(address,uint256)\":{\"details\":\"Approves another address to transfer the given token ID The zero address indicates there is no approved address. There can only be one approved address per token at a given time. Can only be called by the token owner or an approved operator.\",\"params\":{\"to\":\"address to be approved for the given token ID\",\"tokenId\":\"uint256 ID of the token to be approved\"}},\"balanceOf(address)\":{\"details\":\"Gets the balance of the specified address.\",\"params\":{\"owner\":\"address to query the balance of\"},\"return\":\"uint256 representing the amount owned by the passed address\"},\"getApproved(uint256)\":{\"details\":\"Gets the approved address for a token ID, or zero if no address set Reverts if the token ID does not exist.\",\"params\":{\"tokenId\":\"uint256 ID of the token to query the approval of\"},\"return\":\"address currently approved for the given token ID\"},\"isApprovedForAll(address,address)\":{\"details\":\"Tells whether an operator is approved by a given owner.\",\"params\":{\"operator\":\"operator address which you want to query the approval of\",\"owner\":\"owner address which you want to query the approval of\"},\"return\":\"bool whether the given operator is approved by the given owner\"},\"name()\":{\"details\":\"Gets the token name.\",\"return\":\"string representing the token name\"},\"ownerOf(uint256)\":{\"details\":\"Gets the owner of the specified token ID.\",\"params\":{\"tokenId\":\"uint256 ID of the token to query the owner of\"},\"return\":\"address currently marked as the owner of the given token ID\"},\"safeTransferFrom(address,address,uint256)\":{\"details\":\"Safely transfers the ownership of a given token ID to another address If the target address is a contract, it must implement `onERC721Received`, which is called upon a safe transfer, and return the magic value `bytes4(keccak256(\\\"onERC721Received(address,address,uint256,bytes)\\\"))`; otherwise, the transfer is reverted. Requires the msg.sender to be the owner, approved, or operator\",\"params\":{\"from\":\"current owner of the token\",\"to\":\"address to receive the ownership of the given token ID\",\"tokenId\":\"uint256 ID of the token to be transferred\"}},\"safeTransferFrom(address,address,uint256,bytes)\":{\"details\":\"Safely transfers the ownership of a given token ID to another address If the target address is a contract, it must implement `onERC721Received`, which is called upon a safe transfer, and return the magic value `bytes4(keccak256(\\\"onERC721Received(address,address,uint256,bytes)\\\"))`; otherwise, the transfer is reverted. Requires the msg.sender to be the owner, approved, or operator\",\"params\":{\"_data\":\"bytes data to send along with a safe transfer check\",\"from\":\"current owner of the token\",\"to\":\"address to receive the ownership of the given token ID\",\"tokenId\":\"uint256 ID of the token to be transferred\"}},\"setApprovalForAll(address,bool)\":{\"details\":\"Sets or unsets the approval of a given operator An operator is allowed to transfer all tokens of the sender on their behalf.\",\"params\":{\"approved\":\"representing the status of the approval to be set\",\"to\":\"operator address to set the approval\"}},\"supportsInterface(bytes4)\":{\"details\":\"See `IERC165.supportsInterface`.     * Time complexity O(1), guaranteed to always use less than 30 000 gas.\"},\"symbol()\":{\"details\":\"Gets the token symbol.\",\"return\":\"string representing the token symbol\"},\"tokenByIndex(uint256)\":{\"details\":\"Gets the token ID at a given index of all the tokens in this contract Reverts if the index is greater or equal to the total number of tokens.\",\"params\":{\"index\":\"uint256 representing the index to be accessed of the tokens list\"},\"return\":\"uint256 token ID at the given index of the tokens list\"},\"tokenOfOwnerByIndex(address,uint256)\":{\"details\":\"Gets the token ID at a given index of the tokens list of the requested owner.\",\"params\":{\"index\":\"uint256 representing the index to be accessed of the requested tokens list\",\"owner\":\"address owning the tokens list to be accessed\"},\"return\":\"uint256 token ID at the given index of the tokens list owned by the requested address\"},\"tokenURI(uint256)\":{\"details\":\"Returns an URI for a given token ID. Throws if the token ID does not exist. May return an empty string.\",\"params\":{\"tokenId\":\"uint256 ID of the token to query\"}},\"totalSupply()\":{\"details\":\"Gets the total amount of tokens stored by the contract.\",\"return\":\"uint256 representing the total amount of tokens\"},\"transferFrom(address,address,uint256)\":{\"details\":\"Transfers the ownership of a given token ID to another address. Usage of this method is discouraged, use `safeTransferFrom` whenever possible. Requires the msg.sender to be the owner, approved, or operator.\",\"params\":{\"from\":\"current owner of the token\",\"to\":\"address to receive the ownership of the given token ID\",\"tokenId\":\"uint256 ID of the token to be transferred\"}}}},\"userdoc\":{\"methods\":{}}},\"settings\":{\"compilationTarget\":{\"/private/tmp/eth/akap/contracts/AKAF.sol\":\"AKAF\"},\"evmVersion\":\"istanbul\",\"libraries\":{},\"optimizer\":{\"enabled\":true,\"runs\":200},\"remappings\":[]},\"sources\":{\"/private/tmp/eth/akap/contracts/AKAF.sol\":{\"keccak256\":\"0xccf25695c05e171710ff23fcf8c92e51ed30ef8df2e01a546eae1200d0a69a40\",\"urls\":[\"bzz-raw://eaeb36df9e6b23870d3f6804cb7f95546d276ab7ad3211cb81c59ec59cadd795\",\"dweb:/ipfs/QmSKrLHtEiUhCNyzcGZHs2yjfLDNRrUxP3yJfHF1Z9R4Na\"]},\"/private/tmp/eth/akap/contracts/IAKAP.sol\":{\"keccak256\":\"0x2163f1519406e467ca39601ce7dfed73d104b3da8bdd0146bd6ca2d14388276a\",\"urls\":[\"bzz-raw://2e4395653541d8e0a6a5bad617a3b7af3efcd8fdea988edf4c7644aabbb8e6b0\",\"dweb:/ipfs/QmPDi6uqVTLCp1v725r2qfC5GNsiGCwbMCpZWSjc34u1Ek\"]},\"@openzeppelin/contracts/drafts/Counters.sol\":{\"keccak256\":\"0x5eb69360d3441ab2ee799bd7c007cccbffb0896f12b2dfe1456193e2aa180a11\",\"urls\":[\"bzz-raw://072e8b5a1b5acfc2acba9b6fb87d1dc57065aad44572617ad46b014074969eb3\",\"dweb:/ipfs/QmVTDHUriaxBJqiWCWgWC8vYaYYfXSz883LsowzTx1DcpK\"]},\"@openzeppelin/contracts/introspection/ERC165.sol\":{\"keccak256\":\"0xac2eacd7e7762e275442f28f21d821544df5aae2ed7698af13be8c41b7005e2e\",\"urls\":[\"bzz-raw://8bdbefb642e7b08535c66bbf074e576cfef2300cdf910c1e0b211f6393833a28\",\"dweb:/ipfs/QmQhfx2Ufr8a2gFXm3KogL66xGgAuAWMwcamkWFKGG6Vya\"]},\"@openzeppelin/contracts/introspection/IERC165.sol\":{\"keccak256\":\"0x661553e43d7c4fbb2de504e5999fd5c104d367488350ed5bf023031bd1ba5ac5\",\"urls\":[\"bzz-raw://b40442c5b350b57b88a081a1eacd2bac962d4ecc1f029f5447a18986f08f6f14\",\"dweb:/ipfs/QmV7wjtRf11ibUHh4g8JjuhMpy68pPhV95L2y46UBoRfsZ\"]},\"@openzeppelin/contracts/math/SafeMath.sol\":{\"keccak256\":\"0xd1804d04fb39689453f673601429a99a0c68c422a981fc338773df9a59180fe9\",\"urls\":[\"bzz-raw://1b9307920e0378d58c6677f8952ad090a9ecb30e878835e301a0d18386a870c1\",\"dweb:/ipfs/QmYYixTDVF4FXqFpYzEcufAwEY9BFBJ33Ew9ncsGvD7btC\"]},\"@openzeppelin/contracts/token/ERC721/ERC721.sol\":{\"keccak256\":\"0xf151df411bbf4eaef1fc8e8480cd10c2cd985f1a36517e63981517610213efc1\",\"urls\":[\"bzz-raw://2a277b3cc3a1a03af5c039bc75cd16bb2d23b529cb2564cc0bea1b1e0eb4dd68\",\"dweb:/ipfs/QmNRxggY8qmjjuLnxggRqE8uBueuCktLwi9YYHagWoaEJ8\"]},\"@openzeppelin/contracts/token/ERC721/ERC721Enumerable.sol\":{\"keccak256\":\"0xb42cb5a7471d98114af8f7050e7d08dfd543f432713a8aee72a45ce9485f5bed\",\"urls\":[\"bzz-raw://324b8d35f37d91fd863130a6e4b83d55b8b95264af011a008ec03e084ac91b75\",\"dweb:/ipfs/QmWY61QSSJPkgDb2WZR1unTfuSrd5jBp2tC7RrCrQxC9CL\"]},\"@openzeppelin/contracts/token/ERC721/ERC721Full.sol\":{\"keccak256\":\"0x908d0d6fd8d30cffb1fe9fce1f7db6802cb885fbe88d2f170539e8dcc6afa946\",\"urls\":[\"bzz-raw://ed5f7883e2a50b3efeaae764c77152bef9d3d9965832ef095c94e79c2e887257\",\"dweb:/ipfs/QmaLRQ1ziLAo18gvM2EbKhvHC3ys4333mTxCFfoEJ8AodY\"]},\"@openzeppelin/contracts/token/ERC721/ERC721Metadata.sol\":{\"keccak256\":\"0xe5e28b1a405164faa98f8ecd8ed2b00907b89e3d58b2b2bb8ac8b12bc5714489\",\"urls\":[\"bzz-raw://0d5d3f0caa7e7ec91f8a2894e1a6a3513a0c79aa91a498ebf8fdbdd07c12286f\",\"dweb:/ipfs/QmP7r4jQMRxXb5JHy5V9bgMz5FmTezcSDd7ivyzJN88pTR\"]},\"@openzeppelin/contracts/token/ERC721/IERC721.sol\":{\"keccak256\":\"0xce48937a8007c580b8e2e35705738c922dd17540de89ebee6df06d2917a3f9fc\",\"urls\":[\"bzz-raw://1d117265103ee3efcd454d3aafb3e79a115f9bca6dec78a1229558eb30d14d05\",\"dweb:/ipfs/QmTm5Z1c7zzPiG3Cfj1eBMB23AeiEFGgvmTFQVaeEWXVCw\"]},\"@openzeppelin/contracts/token/ERC721/IERC721Enumerable.sol\":{\"keccak256\":\"0x5c573acd6c7b98d71f3c1c44d63dc17400b0fd7b26a52c9fded43b8b533dc4ec\",\"urls\":[\"bzz-raw://e23af54444d2dbfae58895339eb7b189e1ba5d0b7abde63716e7ef7da23b2fde\",\"dweb:/ipfs/QmZva7dE1SMd1yyizzc6ivSoBXXwpNveLV7iFNATNpq68Y\"]},\"@openzeppelin/contracts/token/ERC721/IERC721Metadata.sol\":{\"keccak256\":\"0x2b2b99dc7fe8fcd1f9427d00822b99cbc683dc21f5dd7532bd7e2281fd2c2ca2\",\"urls\":[\"bzz-raw://a8024c00e34efaf328f9592e76823c79f25fa0f6006bdf4a1e7fea204afd4773\",\"dweb:/ipfs/QmZns9jTr7843njq3J2iL2LLoWXK5mdzN1bDGd9GL3ahhD\"]},\"@openzeppelin/contracts/token/ERC721/IERC721Receiver.sol\":{\"keccak256\":\"0xadbfb7028fb0f851dc848a48b9e54e7c89ffd2c2edc12fa4ba9bb383dfaa83d9\",\"urls\":[\"bzz-raw://90dceab42713246639100b87d6650037d68e4a2ab2dd4b5768c3ed35d6b3a4a0\",\"dweb:/ipfs/QmQ42UW5nchMoYP9bU9F1AJga5chG8j92fCPkURpiDKsCu\"]},\"@openzeppelin/contracts/utils/Address.sol\":{\"keccak256\":\"0xf3358e5819ca73357abd6c90bdfffd0474af54364897f6b3e3234c4b71fbe9a1\",\"urls\":[\"bzz-raw://75ae8d04454d1511a2ed986cc8585736f05c5c25280683b3d24712a9f414a4bf\",\"dweb:/ipfs/Qmb3kNCoBUZdah1AgBBD4zMk898j5Qw8ahT1w5cCMYp5Y3\"]}},\"version\":1}",
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+  "source": "// Copyright (C) 2019  Christian Felde\n// Copyright (C) 2019  Mohamed Elshami\n\n// Licensed under the Apache License, Version 2.0 (the \"License\");\n// you may not use this file except in compliance with the License.\n// You may obtain a copy of the License at\n\n// http://www.apache.org/licenses/LICENSE-2.0\n\n// Unless required by applicable law or agreed to in writing, software\n// distributed under the License is distributed on an \"AS IS\" BASIS,\n// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.\n// See the License for the specific language governing permissions and\n// limitations under the License.\n\npragma solidity ^0.5.0;\n\nimport \"./IAKAP.sol\";\nimport \"@openzeppelin/contracts/token/ERC721/ERC721Full.sol\";\n\ncontract AKAF is IAKAP, ERC721Full {\n    struct Node {\n        uint parentId;\n        uint expiry;\n        uint seeAlso;\n        address seeAddress;\n        bytes nodeBody;\n    }\n\n    mapping(uint => Node) private nodes;\n\n    constructor() ERC721Full(\"AKA Forever Registry\", \"AKAF\") public {\n        // Create the special root node and assigned msg.sender as owner\n        uint nodeId = 0;\n        _mint(_msgSender(), nodeId);\n        nodes[nodeId].expiry = uint(-1);\n        emit Claim(_msgSender(), nodeId, nodeId, \"\", ClaimCase.NEW);\n    }\n\n    function _msgSender() internal view returns (address payable) {\n        return msg.sender;\n    }\n\n    modifier onlyExisting(uint nodeId) {\n        require(_exists(nodeId), \"AKAP: operator query for nonexistent node\");\n\n        _;\n    }\n\n    modifier onlyApproved(uint nodeId) {\n        require(_exists(nodeId) && _isApprovedOrOwner(_msgSender(), nodeId), \"AKAP: set value caller is not owner nor approved\");\n\n        _;\n    }\n\n    function hashOf(uint parentId, bytes memory label) public pure returns (uint id) {\n        require(label.length >= 1 && label.length <= 32, \"AKAP: Invalid label length\");\n\n        bytes32 labelHash = keccak256(label);\n        bytes32 nodeId = keccak256(abi.encode(parentId, labelHash));\n\n        require(nodeId > 0, \"AKAP: Invalid node hash\");\n\n        return uint(nodeId);\n    }\n\n    function claim(uint parentId, bytes calldata label) external returns (uint status) {\n        // Claim logic is as found in AKAP, but with an expiry timestamp set to \"forever\".\n        // Owners of a node on an AKAF contract does hence not need to reclaim their nodes.\n        // Node owners may still explicitly expire a node if they wish.\n\n        // Get hash/id of the node caller is claiming\n        uint nodeId = hashOf(parentId, label);\n\n        bool isParentOwner = _isApprovedOrOwner(_msgSender(), parentId);\n        bool nodeExists = _exists(nodeId);\n\n        if (nodeExists && _isApprovedOrOwner(_msgSender(), nodeId)) {\n            require(parentId == nodes[nodeId].parentId, \"AKAP: Invalid parent hash\");\n\n            // Caller is current owner/approved, extend lease..\n            nodes[nodeId].expiry = uint(-1);\n            emit Claim(_msgSender(), nodeId, parentId, label, ClaimCase.RECLAIM);\n\n            return 1;\n        } else if (!nodeExists && isParentOwner) {\n            // Node does not exist, allocate to caller..\n            _mint(_msgSender(), nodeId);\n            nodes[nodeId].parentId = parentId;\n            nodes[nodeId].expiry = uint(-1);\n            emit Claim(_msgSender(), nodeId, parentId, label, ClaimCase.NEW);\n\n            return 2;\n        } else if (nodeExists && nodes[nodeId].expiry <= now && isParentOwner) {\n            require(parentId == nodes[nodeId].parentId, \"AKAP: Invalid parent hash\");\n\n            // Node exists and is expired, allocate to caller and extend lease..\n            _transferFrom(ownerOf(nodeId), _msgSender(), nodeId);\n            nodes[nodeId].expiry = uint(-1);\n            emit Claim(_msgSender(), nodeId, parentId, label, ClaimCase.TRANSFER);\n\n            return 3;\n        }\n\n        // No action\n        return 0;\n    }\n\n    function exists(uint nodeId) external view returns (bool) {\n        return _exists(nodeId);\n    }\n\n    function isApprovedOrOwner(uint nodeId) external view returns (bool) {\n        return _isApprovedOrOwner(_msgSender(), nodeId);\n    }\n\n    function parentOf(uint nodeId) external view onlyExisting(nodeId) returns (uint) {\n        return nodes[nodeId].parentId;\n    }\n\n    function expiryOf(uint nodeId) external view onlyExisting(nodeId) returns (uint) {\n        return nodes[nodeId].expiry;\n    }\n\n    function seeAlso(uint nodeId) external view onlyExisting(nodeId) returns (uint) {\n        return nodes[nodeId].seeAlso;\n    }\n\n    function seeAddress(uint nodeId) external view onlyExisting(nodeId) returns (address) {\n        return nodes[nodeId].seeAddress;\n    }\n\n    function nodeBody(uint nodeId) external view onlyExisting(nodeId) returns (bytes memory) {\n        return nodes[nodeId].nodeBody;\n    }\n\n    function expireNode(uint nodeId) external onlyApproved(nodeId) {\n        nodes[nodeId].expiry = now;\n        emit AttributeChanged(_msgSender(), nodeId, NodeAttribute.EXPIRY);\n    }\n\n    function setSeeAlso(uint nodeId, uint value) external onlyApproved(nodeId) {\n        nodes[nodeId].seeAlso = value;\n        emit AttributeChanged(_msgSender(), nodeId, NodeAttribute.SEE_ALSO);\n    }\n\n    function setSeeAddress(uint nodeId, address value) external onlyApproved(nodeId) {\n        nodes[nodeId].seeAddress = value;\n        emit AttributeChanged(_msgSender(), nodeId, NodeAttribute.SEE_ADDRESS);\n    }\n\n    function setNodeBody(uint nodeId, bytes calldata value) external onlyApproved(nodeId) {\n        nodes[nodeId].nodeBody = value;\n        emit AttributeChanged(_msgSender(), nodeId, NodeAttribute.NODE_BODY);\n    }\n\n    function setTokenURI(uint nodeId, string calldata uri) external onlyApproved(nodeId) {\n        _setTokenURI(nodeId, uri);\n        emit AttributeChanged(_msgSender(), nodeId, NodeAttribute.TOKEN_URI);\n    }\n}",
+  "sourcePath": "/private/tmp/eth/akap/contracts/AKAF.sol",
+  "ast": {
+    "absolutePath": "/private/tmp/eth/akap/contracts/AKAF.sol",
+    "exportedSymbols": {
+      "AKAF": [
+        1335
+      ]
+    },
+    "id": 1336,
+    "nodeType": "SourceUnit",
+    "nodes": [
+      {
+        "id": 784,
+        "literals": [
+          "solidity",
+          "^",
+          "0.5",
+          ".0"
+        ],
+        "nodeType": "PragmaDirective",
+        "src": "627:23:2"
+      },
+      {
+        "absolutePath": "/private/tmp/eth/akap/contracts/IAKAP.sol",
+        "file": "./IAKAP.sol",
+        "id": 785,
+        "nodeType": "ImportDirective",
+        "scope": 1336,
+        "sourceUnit": 2090,
+        "src": "652:21:2",
+        "symbolAliases": [],
+        "unitAlias": ""
+      },
+      {
+        "absolutePath": "@openzeppelin/contracts/token/ERC721/ERC721Full.sol",
+        "file": "@openzeppelin/contracts/token/ERC721/ERC721Full.sol",
+        "id": 786,
+        "nodeType": "ImportDirective",
+        "scope": 1336,
+        "sourceUnit": 3317,
+        "src": "674:61:2",
+        "symbolAliases": [],
+        "unitAlias": ""
+      },
+      {
+        "baseContracts": [
+          {
+            "arguments": null,
+            "baseName": {
+              "contractScope": null,
+              "id": 787,
+              "name": "IAKAP",
+              "nodeType": "UserDefinedTypeName",
+              "referencedDeclaration": 2089,
+              "src": "754:5:2",
+              "typeDescriptions": {
+                "typeIdentifier": "t_contract$_IAKAP_$2089",
+                "typeString": "contract IAKAP"
+              }
+            },
+            "id": 788,
+            "nodeType": "InheritanceSpecifier",
+            "src": "754:5:2"
+          },
+          {
+            "arguments": null,
+            "baseName": {
+              "contractScope": null,
+              "id": 789,
+              "name": "ERC721Full",
+              "nodeType": "UserDefinedTypeName",
+              "referencedDeclaration": 3316,
+              "src": "761:10:2",
+              "typeDescriptions": {
+                "typeIdentifier": "t_contract$_ERC721Full_$3316",
+                "typeString": "contract ERC721Full"
+              }
+            },
+            "id": 790,
+            "nodeType": "InheritanceSpecifier",
+            "src": "761:10:2"
+          }
+        ],
+        "contractDependencies": [
+          2089,
+          2247,
+          2257,
+          2955,
+          3292,
+          3316,
+          3445,
+          3548,
+          3575,
+          3598
+        ],
+        "contractKind": "contract",
+        "documentation": null,
+        "fullyImplemented": true,
+        "id": 1335,
+        "linearizedBaseContracts": [
+          1335,
+          3316,
+          3445,
+          3598,
+          3292,
+          3575,
+          2955,
+          3548,
+          2247,
+          2257,
+          2089
+        ],
+        "name": "AKAF",
+        "nodeType": "ContractDefinition",
+        "nodes": [
+          {
+            "canonicalName": "AKAF.Node",
+            "id": 801,
+            "members": [
+              {
+                "constant": false,
+                "id": 792,
+                "name": "parentId",
+                "nodeType": "VariableDeclaration",
+                "scope": 801,
+                "src": "800:13:2",
+                "stateVariable": false,
+                "storageLocation": "default",
+                "typeDescriptions": {
+                  "typeIdentifier": "t_uint256",
+                  "typeString": "uint256"
+                },
+                "typeName": {
+                  "id": 791,
+                  "name": "uint",
+                  "nodeType": "ElementaryTypeName",
+                  "src": "800:4:2",
+                  "typeDescriptions": {
+                    "typeIdentifier": "t_uint256",
+                    "typeString": "uint256"
+                  }
+                },
+                "value": null,
+                "visibility": "internal"
+              },
+              {
+                "constant": false,
+                "id": 794,
+                "name": "expiry",
+                "nodeType": "VariableDeclaration",
+                "scope": 801,
+                "src": "823:11:2",
+                "stateVariable": false,
+                "storageLocation": "default",
+                "typeDescriptions": {
+                  "typeIdentifier": "t_uint256",
+                  "typeString": "uint256"
+                },
+                "typeName": {
+                  "id": 793,
+                  "name": "uint",
+                  "nodeType": "ElementaryTypeName",
+                  "src": "823:4:2",
+                  "typeDescriptions": {
+                    "typeIdentifier": "t_uint256",
+                    "typeString": "uint256"
+                  }
+                },
+                "value": null,
+                "visibility": "internal"
+              },
+              {
+                "constant": false,
+                "id": 796,
+                "name": "seeAlso",
+                "nodeType": "VariableDeclaration",
+                "scope": 801,
+                "src": "844:12:2",
+                "stateVariable": false,
+                "storageLocation": "default",
+                "typeDescriptions": {
+                  "typeIdentifier": "t_uint256",
+                  "typeString": "uint256"
+                },
+                "typeName": {
+                  "id": 795,
+                  "name": "uint",
+                  "nodeType": "ElementaryTypeName",
+                  "src": "844:4:2",
+                  "typeDescriptions": {
+                    "typeIdentifier": "t_uint256",
+                    "typeString": "uint256"
+                  }
+                },
+                "value": null,
+                "visibility": "internal"
+              },
+              {
+                "constant": false,
+                "id": 798,
+                "name": "seeAddress",
+                "nodeType": "VariableDeclaration",
+                "scope": 801,
+                "src": "866:18:2",
+                "stateVariable": false,
+                "storageLocation": "default",
+                "typeDescriptions": {
+                  "typeIdentifier": "t_address",
+                  "typeString": "address"
+                },
+                "typeName": {
+                  "id": 797,
+                  "name": "address",
+                  "nodeType": "ElementaryTypeName",
+                  "src": "866:7:2",
+                  "stateMutability": "nonpayable",
+                  "typeDescriptions": {
+                    "typeIdentifier": "t_address",
+                    "typeString": "address"
+                  }
+                },
+                "value": null,
+                "visibility": "internal"
+              },
+              {
+                "constant": false,
+                "id": 800,
+                "name": "nodeBody",
+                "nodeType": "VariableDeclaration",
+                "scope": 801,
+                "src": "894:14:2",
+                "stateVariable": false,
+                "storageLocation": "default",
+                "typeDescriptions": {
+                  "typeIdentifier": "t_bytes_storage_ptr",
+                  "typeString": "bytes"
+                },
+                "typeName": {
+                  "id": 799,
+                  "name": "bytes",
+                  "nodeType": "ElementaryTypeName",
+                  "src": "894:5:2",
+                  "typeDescriptions": {
+                    "typeIdentifier": "t_bytes_storage_ptr",
+                    "typeString": "bytes"
+                  }
+                },
+                "value": null,
+                "visibility": "internal"
+              }
+            ],
+            "name": "Node",
+            "nodeType": "StructDefinition",
+            "scope": 1335,
+            "src": "778:137:2",
+            "visibility": "public"
+          },
+          {
+            "constant": false,
+            "id": 805,
+            "name": "nodes",
+            "nodeType": "VariableDeclaration",
+            "scope": 1335,
+            "src": "921:35:2",
+            "stateVariable": true,
+            "storageLocation": "default",
+            "typeDescriptions": {
+              "typeIdentifier": "t_mapping$_t_uint256_$_t_struct$_Node_$801_storage_$",
+              "typeString": "mapping(uint256 => struct AKAF.Node)"
+            },
+            "typeName": {
+              "id": 804,
+              "keyType": {
+                "id": 802,
+                "name": "uint",
+                "nodeType": "ElementaryTypeName",
+                "src": "929:4:2",
+                "typeDescriptions": {
+                  "typeIdentifier": "t_uint256",
+                  "typeString": "uint256"
+                }
+              },
+              "nodeType": "Mapping",
+              "src": "921:21:2",
+              "typeDescriptions": {
+                "typeIdentifier": "t_mapping$_t_uint256_$_t_struct$_Node_$801_storage_$",
+                "typeString": "mapping(uint256 => struct AKAF.Node)"
+              },
+              "valueType": {
+                "contractScope": null,
+                "id": 803,
+                "name": "Node",
+                "nodeType": "UserDefinedTypeName",
+                "referencedDeclaration": 801,
+                "src": "937:4:2",
+                "typeDescriptions": {
+                  "typeIdentifier": "t_struct$_Node_$801_storage_ptr",
+                  "typeString": "struct AKAF.Node"
+                }
+              }
+            },
+            "value": null,
+            "visibility": "private"
+          },
+          {
+            "body": {
+              "id": 842,
+              "nodeType": "Block",
+              "src": "1027:252:2",
+              "statements": [
+                {
+                  "assignments": [
+                    813
+                  ],
+                  "declarations": [
+                    {
+                      "constant": false,
+                      "id": 813,
+                      "name": "nodeId",
+                      "nodeType": "VariableDeclaration",
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+                      "src": "1110:11:2",
+                      "stateVariable": false,
+                      "storageLocation": "default",
+                      "typeDescriptions": {
+                        "typeIdentifier": "t_uint256",
+                        "typeString": "uint256"
+                      },
+                      "typeName": {
+                        "id": 812,
+                        "name": "uint",
+                        "nodeType": "ElementaryTypeName",
+                        "src": "1110:4:2",
+                        "typeDescriptions": {
+                          "typeIdentifier": "t_uint256",
+                          "typeString": "uint256"
+                        }
+                      },
+                      "value": null,
+                      "visibility": "internal"
+                    }
+                  ],
+                  "id": 815,
+                  "initialValue": {
+                    "argumentTypes": null,
+                    "hexValue": "30",
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+                    "isConstant": false,
+                    "isLValue": false,
+                    "isPure": true,
+                    "kind": "number",
+                    "lValueRequested": false,
+                    "nodeType": "Literal",
+                    "src": "1124:1:2",
+                    "subdenomination": null,
+                    "typeDescriptions": {
+                      "typeIdentifier": "t_rational_0_by_1",
+                      "typeString": "int_const 0"
+                    },
+                    "value": "0"
+                  },
+                  "nodeType": "VariableDeclarationStatement",
+                  "src": "1110:15:2"
+                },
+                {
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+                    "argumentTypes": null,
+                    "arguments": [
+                      {
+                        "argumentTypes": null,
+                        "arguments": [],
+                        "expression": {
+                          "argumentTypes": [],
+                          "id": 817,
+                          "name": "_msgSender",
+                          "nodeType": "Identifier",
+                          "overloadedDeclarations": [],
+                          "referencedDeclaration": 852,
+                          "src": "1141:10:2",
+                          "typeDescriptions": {
+                            "typeIdentifier": "t_function_internal_view$__$returns$_t_address_payable_$",
+                            "typeString": "function () view returns (address payable)"
+                          }
+                        },
+                        "id": 818,
+                        "isConstant": false,
+                        "isLValue": false,
+                        "isPure": false,
+                        "kind": "functionCall",
+                        "lValueRequested": false,
+                        "names": [],
+                        "nodeType": "FunctionCall",
+                        "src": "1141:12:2",
+                        "typeDescriptions": {
+                          "typeIdentifier": "t_address_payable",
+                          "typeString": "address payable"
+                        }
+                      },
+                      {
+                        "argumentTypes": null,
+                        "id": 819,
+                        "name": "nodeId",
+                        "nodeType": "Identifier",
+                        "overloadedDeclarations": [],
+                        "referencedDeclaration": 813,
+                        "src": "1155:6:2",
+                        "typeDescriptions": {
+                          "typeIdentifier": "t_uint256",
+                          "typeString": "uint256"
+                        }
+                      }
+                    ],
+                    "expression": {
+                      "argumentTypes": [
+                        {
+                          "typeIdentifier": "t_address_payable",
+                          "typeString": "address payable"
+                        },
+                        {
+                          "typeIdentifier": "t_uint256",
+                          "typeString": "uint256"
+                        }
+                      ],
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+                      "name": "_mint",
+                      "nodeType": "Identifier",
+                      "overloadedDeclarations": [
+                        3099
+                      ],
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+                      "src": "1135:5:2",
+                      "typeDescriptions": {
+                        "typeIdentifier": "t_function_internal_nonpayable$_t_address_$_t_uint256_$returns$__$",
+                        "typeString": "function (address,uint256)"
+                      }
+                    },
+                    "id": 820,
+                    "isConstant": false,
+                    "isLValue": false,
+                    "isPure": false,
+                    "kind": "functionCall",
+                    "lValueRequested": false,
+                    "names": [],
+                    "nodeType": "FunctionCall",
+                    "src": "1135:27:2",
+                    "typeDescriptions": {
+                      "typeIdentifier": "t_tuple$__$",
+                      "typeString": "tuple()"
+                    }
+                  },
+                  "id": 821,
+                  "nodeType": "ExpressionStatement",
+                  "src": "1135:27:2"
+                },
+                {
+                  "expression": {
+                    "argumentTypes": null,
+                    "id": 830,
+                    "isConstant": false,
+                    "isLValue": false,
+                    "isPure": false,
+                    "lValueRequested": false,
+                    "leftHandSide": {
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+                      "expression": {
+                        "argumentTypes": null,
+                        "baseExpression": {
+                          "argumentTypes": null,
+                          "id": 822,
+                          "name": "nodes",
+                          "nodeType": "Identifier",
+                          "overloadedDeclarations": [],
+                          "referencedDeclaration": 805,
+                          "src": "1172:5:2",
+                          "typeDescriptions": {
+                            "typeIdentifier": "t_mapping$_t_uint256_$_t_struct$_Node_$801_storage_$",
+                            "typeString": "mapping(uint256 => struct AKAF.Node storage ref)"
+                          }
+                        },
+                        "id": 824,
+                        "indexExpression": {
+                          "argumentTypes": null,
+                          "id": 823,
+                          "name": "nodeId",
+                          "nodeType": "Identifier",
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+                          "referencedDeclaration": 813,
+                          "src": "1178:6:2",
+                          "typeDescriptions": {
+                            "typeIdentifier": "t_uint256",
+                            "typeString": "uint256"
+                          }
+                        },
+                        "isConstant": false,
+                        "isLValue": true,
+                        "isPure": false,
+                        "lValueRequested": false,
+                        "nodeType": "IndexAccess",
+                        "src": "1172:13:2",
+                        "typeDescriptions": {
+                          "typeIdentifier": "t_struct$_Node_$801_storage",
+                          "typeString": "struct AKAF.Node storage ref"
+                        }
+                      },
+                      "id": 825,
+                      "isConstant": false,
+                      "isLValue": true,
+                      "isPure": false,
+                      "lValueRequested": true,
+                      "memberName": "expiry",
+                      "nodeType": "MemberAccess",
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+                      "src": "1172:20:2",
+                      "typeDescriptions": {
+                        "typeIdentifier": "t_uint256",
+                        "typeString": "uint256"
+                      }
+                    },
+                    "nodeType": "Assignment",
+                    "operator": "=",
+                    "rightHandSide": {
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+                      "arguments": [
+                        {
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+                          "isConstant": false,
+                          "isLValue": false,
+                          "isPure": true,
+                          "lValueRequested": false,
+                          "nodeType": "UnaryOperation",
+                          "operator": "-",
+                          "prefix": true,
+                          "src": "1200:2:2",
+                          "subExpression": {
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+                            "hexValue": "31",
+                            "id": 827,
+                            "isConstant": false,
+                            "isLValue": false,
+                            "isPure": true,
+                            "kind": "number",
+                            "lValueRequested": false,
+                            "nodeType": "Literal",
+                            "src": "1201:1:2",
+                            "subdenomination": null,
+                            "typeDescriptions": {
+                              "typeIdentifier": "t_rational_1_by_1",
+                              "typeString": "int_const 1"
+                            },
+                            "value": "1"
+                          },
+                          "typeDescriptions": {
+                            "typeIdentifier": "t_rational_minus_1_by_1",
+                            "typeString": "int_const -1"
+                          }
+                        }
+                      ],
+                      "expression": {
+                        "argumentTypes": [
+                          {
+                            "typeIdentifier": "t_rational_minus_1_by_1",
+                            "typeString": "int_const -1"
+                          }
+                        ],
+                        "id": 826,
+                        "isConstant": false,
+                        "isLValue": false,
+                        "isPure": true,
+                        "lValueRequested": false,
+                        "nodeType": "ElementaryTypeNameExpression",
+                        "src": "1195:4:2",
+                        "typeDescriptions": {
+                          "typeIdentifier": "t_type$_t_uint256_$",
+                          "typeString": "type(uint256)"
+                        },
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+                      },
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+                        "typeIdentifier": "t_uint256",
+                        "typeString": "uint256"
+                      }
+                    },
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+                      "typeIdentifier": "t_uint256",
+                      "typeString": "uint256"
+                    }
+                  },
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+                  "nodeType": "ExpressionStatement",
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+                },
+                {
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+                    "argumentTypes": null,
+                    "arguments": [
+                      {
+                        "argumentTypes": null,
+                        "arguments": [],
+                        "expression": {
+                          "argumentTypes": [],
+                          "id": 833,
+                          "name": "_msgSender",
+                          "nodeType": "Identifier",
+                          "overloadedDeclarations": [],
+                          "referencedDeclaration": 852,
+                          "src": "1224:10:2",
+                          "typeDescriptions": {
+                            "typeIdentifier": "t_function_internal_view$__$returns$_t_address_payable_$",
+                            "typeString": "function () view returns (address payable)"
+                          }
+                        },
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+                        "typeDescriptions": {
+                          "typeIdentifier": "t_address_payable",
+                          "typeString": "address payable"
+                        }
+                      },
+                      {
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+                        "name": "nodeId",
+                        "nodeType": "Identifier",
+                        "overloadedDeclarations": [],
+                        "referencedDeclaration": 813,
+                        "src": "1238:6:2",
+                        "typeDescriptions": {
+                          "typeIdentifier": "t_uint256",
+                          "typeString": "uint256"
+                        }
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+                        "name": "nodeId",
+                        "nodeType": "Identifier",
+                        "overloadedDeclarations": [],
+                        "referencedDeclaration": 813,
+                        "src": "1246:6:2",
+                        "typeDescriptions": {
+                          "typeIdentifier": "t_uint256",
+                          "typeString": "uint256"
+                        }
+                      },
+                      {
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+                        "hexValue": "",
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+                        "isConstant": false,
+                        "isLValue": false,
+                        "isPure": true,
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+          ],
+          "name": "Claim",
+          "type": "event"
+        },
+        "0xddf252ad1be2c89b69c2b068fc378daa952ba7f163c4a11628f55a4df523b3ef": {
+          "anonymous": false,
+          "inputs": [
+            {
+              "indexed": true,
+              "internalType": "address",
+              "name": "from",
+              "type": "address"
+            },
+            {
+              "indexed": true,
+              "internalType": "address",
+              "name": "to",
+              "type": "address"
+            },
+            {
+              "indexed": true,
+              "internalType": "uint256",
+              "name": "tokenId",
+              "type": "uint256"
+            }
+          ],
+          "name": "Transfer",
+          "type": "event"
+        }
+      },
+      "links": {},
+      "address": "0x96923dA433Be67C18D24C5D60B8d4A250D9AC66b",
+      "transactionHash": "0x31f48623ffd5006724ea313beecab3164036594e0108847076af65fc932e7ccf"
+    }
+  },
+  "schemaVersion": "3.0.23",
+  "updatedAt": "2020-05-12T10:00:23.992Z",
+  "devdoc": {
+    "methods": {
+      "approve(address,uint256)": {
+        "details": "Approves another address to transfer the given token ID The zero address indicates there is no approved address. There can only be one approved address per token at a given time. Can only be called by the token owner or an approved operator.",
+        "params": {
+          "to": "address to be approved for the given token ID",
+          "tokenId": "uint256 ID of the token to be approved"
+        }
+      },
+      "balanceOf(address)": {
+        "details": "Gets the balance of the specified address.",
+        "params": {
+          "owner": "address to query the balance of"
+        },
+        "return": "uint256 representing the amount owned by the passed address"
+      },
+      "getApproved(uint256)": {
+        "details": "Gets the approved address for a token ID, or zero if no address set Reverts if the token ID does not exist.",
+        "params": {
+          "tokenId": "uint256 ID of the token to query the approval of"
+        },
+        "return": "address currently approved for the given token ID"
+      },
+      "isApprovedForAll(address,address)": {
+        "details": "Tells whether an operator is approved by a given owner.",
+        "params": {
+          "operator": "operator address which you want to query the approval of",
+          "owner": "owner address which you want to query the approval of"
+        },
+        "return": "bool whether the given operator is approved by the given owner"
+      },
+      "name()": {
+        "details": "Gets the token name.",
+        "return": "string representing the token name"
+      },
+      "ownerOf(uint256)": {
+        "details": "Gets the owner of the specified token ID.",
+        "params": {
+          "tokenId": "uint256 ID of the token to query the owner of"
+        },
+        "return": "address currently marked as the owner of the given token ID"
+      },
+      "safeTransferFrom(address,address,uint256)": {
+        "details": "Safely transfers the ownership of a given token ID to another address If the target address is a contract, it must implement `onERC721Received`, which is called upon a safe transfer, and return the magic value `bytes4(keccak256(\"onERC721Received(address,address,uint256,bytes)\"))`; otherwise, the transfer is reverted. Requires the msg.sender to be the owner, approved, or operator",
+        "params": {
+          "from": "current owner of the token",
+          "to": "address to receive the ownership of the given token ID",
+          "tokenId": "uint256 ID of the token to be transferred"
+        }
+      },
+      "safeTransferFrom(address,address,uint256,bytes)": {
+        "details": "Safely transfers the ownership of a given token ID to another address If the target address is a contract, it must implement `onERC721Received`, which is called upon a safe transfer, and return the magic value `bytes4(keccak256(\"onERC721Received(address,address,uint256,bytes)\"))`; otherwise, the transfer is reverted. Requires the msg.sender to be the owner, approved, or operator",
+        "params": {
+          "_data": "bytes data to send along with a safe transfer check",
+          "from": "current owner of the token",
+          "to": "address to receive the ownership of the given token ID",
+          "tokenId": "uint256 ID of the token to be transferred"
+        }
+      },
+      "setApprovalForAll(address,bool)": {
+        "details": "Sets or unsets the approval of a given operator An operator is allowed to transfer all tokens of the sender on their behalf.",
+        "params": {
+          "approved": "representing the status of the approval to be set",
+          "to": "operator address to set the approval"
+        }
+      },
+      "supportsInterface(bytes4)": {
+        "details": "See `IERC165.supportsInterface`.     * Time complexity O(1), guaranteed to always use less than 30 000 gas."
+      },
+      "symbol()": {
+        "details": "Gets the token symbol.",
+        "return": "string representing the token symbol"
+      },
+      "tokenByIndex(uint256)": {
+        "details": "Gets the token ID at a given index of all the tokens in this contract Reverts if the index is greater or equal to the total number of tokens.",
+        "params": {
+          "index": "uint256 representing the index to be accessed of the tokens list"
+        },
+        "return": "uint256 token ID at the given index of the tokens list"
+      },
+      "tokenOfOwnerByIndex(address,uint256)": {
+        "details": "Gets the token ID at a given index of the tokens list of the requested owner.",
+        "params": {
+          "index": "uint256 representing the index to be accessed of the requested tokens list",
+          "owner": "address owning the tokens list to be accessed"
+        },
+        "return": "uint256 token ID at the given index of the tokens list owned by the requested address"
+      },
+      "tokenURI(uint256)": {
+        "details": "Returns an URI for a given token ID. Throws if the token ID does not exist. May return an empty string.",
+        "params": {
+          "tokenId": "uint256 ID of the token to query"
+        }
+      },
+      "totalSupply()": {
+        "details": "Gets the total amount of tokens stored by the contract.",
+        "return": "uint256 representing the total amount of tokens"
+      },
+      "transferFrom(address,address,uint256)": {
+        "details": "Transfers the ownership of a given token ID to another address. Usage of this method is discouraged, use `safeTransferFrom` whenever possible. Requires the msg.sender to be the owner, approved, or operator.",
+        "params": {
+          "from": "current owner of the token",
+          "to": "address to receive the ownership of the given token ID",
+          "tokenId": "uint256 ID of the token to be transferred"
+        }
+      }
+    }
+  },
+  "userdoc": {
+    "methods": {}
+  }
+}
\ No newline at end of file
diff --git a/contracts/AKAF.sol b/contracts/AKAF.sol
new file mode 100644
index 0000000..5180b16
--- /dev/null
+++ b/contracts/AKAF.sol
@@ -0,0 +1,161 @@
+// Copyright (C) 2019  Christian Felde
+// Copyright (C) 2019  Mohamed Elshami
+
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+
+// http://www.apache.org/licenses/LICENSE-2.0
+
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+pragma solidity ^0.5.0;
+
+import "./IAKAP.sol";
+import "@openzeppelin/contracts/token/ERC721/ERC721Full.sol";
+
+contract AKAF is IAKAP, ERC721Full {
+    struct Node {
+        uint parentId;
+        uint expiry;
+        uint seeAlso;
+        address seeAddress;
+        bytes nodeBody;
+    }
+
+    mapping(uint => Node) private nodes;
+
+    constructor() ERC721Full("AKA Forever Registry", "AKAF") public {
+        // Create the special root node and assigned msg.sender as owner
+        uint nodeId = 0;
+        _mint(_msgSender(), nodeId);
+        nodes[nodeId].expiry = uint(-1);
+        emit Claim(_msgSender(), nodeId, nodeId, "", ClaimCase.NEW);
+    }
+
+    function _msgSender() internal view returns (address payable) {
+        return msg.sender;
+    }
+
+    modifier onlyExisting(uint nodeId) {
+        require(_exists(nodeId), "AKAP: operator query for nonexistent node");
+
+        _;
+    }
+
+    modifier onlyApproved(uint nodeId) {
+        require(_exists(nodeId) && _isApprovedOrOwner(_msgSender(), nodeId), "AKAP: set value caller is not owner nor approved");
+
+        _;
+    }
+
+    function hashOf(uint parentId, bytes memory label) public pure returns (uint id) {
+        require(label.length >= 1 && label.length <= 32, "AKAP: Invalid label length");
+
+        bytes32 labelHash = keccak256(label);
+        bytes32 nodeId = keccak256(abi.encode(parentId, labelHash));
+
+        require(nodeId > 0, "AKAP: Invalid node hash");
+
+        return uint(nodeId);
+    }
+
+    function claim(uint parentId, bytes calldata label) external returns (uint status) {
+        // Claim logic is as found in AKAP, but with an expiry timestamp set to "forever".
+        // Owners of a node on an AKAF contract does hence not need to reclaim their nodes.
+        // Node owners may still explicitly expire a node if they wish.
+
+        // Get hash/id of the node caller is claiming
+        uint nodeId = hashOf(parentId, label);
+
+        bool isParentOwner = _isApprovedOrOwner(_msgSender(), parentId);
+        bool nodeExists = _exists(nodeId);
+
+        if (nodeExists && _isApprovedOrOwner(_msgSender(), nodeId)) {
+            require(parentId == nodes[nodeId].parentId, "AKAP: Invalid parent hash");
+
+            // Caller is current owner/approved, extend lease..
+            nodes[nodeId].expiry = uint(-1);
+            emit Claim(_msgSender(), nodeId, parentId, label, ClaimCase.RECLAIM);
+
+            return 1;
+        } else if (!nodeExists && isParentOwner) {
+            // Node does not exist, allocate to caller..
+            _mint(_msgSender(), nodeId);
+            nodes[nodeId].parentId = parentId;
+            nodes[nodeId].expiry = uint(-1);
+            emit Claim(_msgSender(), nodeId, parentId, label, ClaimCase.NEW);
+
+            return 2;
+        } else if (nodeExists && nodes[nodeId].expiry <= now && isParentOwner) {
+            require(parentId == nodes[nodeId].parentId, "AKAP: Invalid parent hash");
+
+            // Node exists and is expired, allocate to caller and extend lease..
+            _transferFrom(ownerOf(nodeId), _msgSender(), nodeId);
+            nodes[nodeId].expiry = uint(-1);
+            emit Claim(_msgSender(), nodeId, parentId, label, ClaimCase.TRANSFER);
+
+            return 3;
+        }
+
+        // No action
+        return 0;
+    }
+
+    function exists(uint nodeId) external view returns (bool) {
+        return _exists(nodeId);
+    }
+
+    function isApprovedOrOwner(uint nodeId) external view returns (bool) {
+        return _isApprovedOrOwner(_msgSender(), nodeId);
+    }
+
+    function parentOf(uint nodeId) external view onlyExisting(nodeId) returns (uint) {
+        return nodes[nodeId].parentId;
+    }
+
+    function expiryOf(uint nodeId) external view onlyExisting(nodeId) returns (uint) {
+        return nodes[nodeId].expiry;
+    }
+
+    function seeAlso(uint nodeId) external view onlyExisting(nodeId) returns (uint) {
+        return nodes[nodeId].seeAlso;
+    }
+
+    function seeAddress(uint nodeId) external view onlyExisting(nodeId) returns (address) {
+        return nodes[nodeId].seeAddress;
+    }
+
+    function nodeBody(uint nodeId) external view onlyExisting(nodeId) returns (bytes memory) {
+        return nodes[nodeId].nodeBody;
+    }
+
+    function expireNode(uint nodeId) external onlyApproved(nodeId) {
+        nodes[nodeId].expiry = now;
+        emit AttributeChanged(_msgSender(), nodeId, NodeAttribute.EXPIRY);
+    }
+
+    function setSeeAlso(uint nodeId, uint value) external onlyApproved(nodeId) {
+        nodes[nodeId].seeAlso = value;
+        emit AttributeChanged(_msgSender(), nodeId, NodeAttribute.SEE_ALSO);
+    }
+
+    function setSeeAddress(uint nodeId, address value) external onlyApproved(nodeId) {
+        nodes[nodeId].seeAddress = value;
+        emit AttributeChanged(_msgSender(), nodeId, NodeAttribute.SEE_ADDRESS);
+    }
+
+    function setNodeBody(uint nodeId, bytes calldata value) external onlyApproved(nodeId) {
+        nodes[nodeId].nodeBody = value;
+        emit AttributeChanged(_msgSender(), nodeId, NodeAttribute.NODE_BODY);
+    }
+
+    function setTokenURI(uint nodeId, string calldata uri) external onlyApproved(nodeId) {
+        _setTokenURI(nodeId, uri);
+        emit AttributeChanged(_msgSender(), nodeId, NodeAttribute.TOKEN_URI);
+    }
+}
\ No newline at end of file
diff --git a/migrations/2_deploy_contracts.js b/migrations/2_deploy_contracts.js
index c05577c..f489554 100644
--- a/migrations/2_deploy_contracts.js
+++ b/migrations/2_deploy_contracts.js
@@ -1,5 +1,7 @@
 var akap = artifacts.require("AKAP");
+var akaf = artifacts.require("AKAF");
 
 module.exports = function(deployer, network, accounts) {
     deployer.deploy(akap);
+    deployer.deploy(akaf);
 };
diff --git a/package.json b/package.json
index 19156c0..f6a6bdc 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "akap",
-  "version": "1.0.2",
+  "version": "1.1.0",
   "description": "AKA protocol, the LDAP of Ethereum",
   "files": [
     "/contracts/*.sol",
diff --git a/test/akaf.js b/test/akaf.js
new file mode 100644
index 0000000..80114d8
--- /dev/null
+++ b/test/akaf.js
@@ -0,0 +1,341 @@
+// Copyright (C) 2019  Christian Felde
+// Copyright (C) 2019  Mohamed Elshami
+
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+
+// http://www.apache.org/licenses/LICENSE-2.0
+
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+const {expectRevert} = require('@openzeppelin/test-helpers');
+
+const akaf = artifacts.require("AKAF");
+
+function sleep(ms) {
+    return new Promise(resolve => setTimeout(resolve, ms));
+}
+
+contract("When testing AKAF, it:", async accounts => {
+
+    it("should be possible to claim a node on special case root parent id", async () => {
+        // This is a case 2 test with special case parent..
+        let instance = await akaf.deployed();
+
+        let nodeHash = await instance.hashOf(0x0, [0x1]);
+
+        await expectRevert(instance.ownerOf(nodeHash), "ERC721: owner query for nonexistent token");
+        await expectRevert(instance.parentOf(nodeHash), "AKAP: operator query for nonexistent node");
+        await expectRevert(instance.expiryOf(nodeHash), "AKAP: operator query for nonexistent node");
+        await expectRevert(instance.seeAlso(nodeHash), "AKAP: operator query for nonexistent node");
+        await expectRevert(instance.seeAddress(nodeHash), "AKAP: operator query for nonexistent node");
+        await expectRevert(instance.nodeBody(nodeHash), "AKAP: operator query for nonexistent node");
+
+        assert.isFalse(await instance.exists(nodeHash));
+
+        await instance.claim(0x0, [0x1]);
+
+        assert.isTrue(await instance.exists(nodeHash));
+
+        assert.equal(accounts[0], await instance.ownerOf(nodeHash));
+        assert.isTrue(await instance.isApprovedOrOwner(nodeHash));
+        assert.isFalse(await instance.isApprovedOrOwner(nodeHash, {from: accounts[1]}));
+        assert.equal(0x0, await instance.parentOf(nodeHash));
+        assert.isTrue(await instance.expiryOf(nodeHash) > 0);
+
+        assert.equal(0x0, await instance.seeAlso(nodeHash));
+        assert.equal(0x0, await instance.seeAddress(nodeHash));
+        assert.equal(null, await instance.nodeBody(nodeHash));
+    });
+
+    it("should only be possible for the root owner to claim new root node children", async () => {
+        let instance = await akaf.deployed();
+
+        let parentHash = 0x0;
+        let nodeHash = await instance.hashOf(parentHash, [0x5]);
+
+        await expectRevert(instance.ownerOf(nodeHash), "ERC721: owner query for nonexistent token");
+        await expectRevert(instance.parentOf(nodeHash), "AKAP: operator query for nonexistent node");
+        await expectRevert(instance.expiryOf(nodeHash), "AKAP: operator query for nonexistent node");
+        await expectRevert(instance.seeAlso(nodeHash), "AKAP: operator query for nonexistent node");
+        await expectRevert(instance.seeAddress(nodeHash), "AKAP: operator query for nonexistent node");
+        await expectRevert(instance.nodeBody(nodeHash), "AKAP: operator query for nonexistent node");
+
+        await instance.claim(parentHash, [0x5], {from: accounts[5]});
+
+        await expectRevert(instance.ownerOf(nodeHash), "ERC721: owner query for nonexistent token");
+        await expectRevert(instance.parentOf(nodeHash), "AKAP: operator query for nonexistent node");
+        await expectRevert(instance.expiryOf(nodeHash), "AKAP: operator query for nonexistent node");
+        await expectRevert(instance.seeAlso(nodeHash), "AKAP: operator query for nonexistent node");
+        await expectRevert(instance.seeAddress(nodeHash), "AKAP: operator query for nonexistent node");
+        await expectRevert(instance.nodeBody(nodeHash), "AKAP: operator query for nonexistent node");
+
+        await instance.setApprovalForAll(accounts[5], true);
+        await instance.claim(parentHash, [0x5], {from: accounts[5]});
+
+        assert.equal(accounts[5], await instance.ownerOf(nodeHash));
+        assert.equal(0x0, await instance.parentOf(nodeHash));
+        assert.isTrue(await instance.expiryOf(nodeHash) > 0);
+
+        assert.equal(0x0, await instance.seeAlso(nodeHash));
+        assert.equal(0x0, await instance.seeAddress(nodeHash));
+        assert.equal(null, await instance.nodeBody(nodeHash));
+    });
+
+    it("should be possible to claim a node on another owned node", async () => {
+        // This is a case 2 test with non-special parent case..
+        let instance = await akaf.deployed();
+
+        let parentHash = await instance.hashOf(0x0, [0x1]);
+        let nodeHash = await instance.hashOf(parentHash, [0x2]);
+
+        await expectRevert(instance.ownerOf(nodeHash), "ERC721: owner query for nonexistent token");
+        await expectRevert(instance.parentOf(nodeHash), "AKAP: operator query for nonexistent node");
+        await expectRevert(instance.expiryOf(nodeHash), "AKAP: operator query for nonexistent node");
+        await expectRevert(instance.seeAlso(nodeHash), "AKAP: operator query for nonexistent node");
+        await expectRevert(instance.seeAddress(nodeHash), "AKAP: operator query for nonexistent node");
+        await expectRevert(instance.nodeBody(nodeHash), "AKAP: operator query for nonexistent node");
+
+        await instance.claim(parentHash, [0x2]);
+
+        assert.equal(accounts[0], await instance.ownerOf(nodeHash));
+        assert.isTrue(parentHash.eq(await instance.parentOf(nodeHash)));
+        assert.isTrue(await instance.expiryOf(nodeHash) > 0);
+
+        assert.equal(0x0, await instance.seeAlso(nodeHash));
+        assert.equal(0x0, await instance.seeAddress(nodeHash));
+        assert.equal(null, await instance.nodeBody(nodeHash));
+    });
+
+    it("should be possible for owners of node to reclaim an existing node", async () => {
+        // This is a case 1 test with special case parent..
+        let instance = await akaf.deployed();
+
+        let nodeHash = await instance.hashOf(0x0, [0x1]);
+
+        let existingExpiry = await instance.expiryOf(nodeHash);
+
+        await sleep(1000);
+
+        await instance.claim(0x0, [0x1]);
+
+        assert.equal(accounts[0], await instance.ownerOf(nodeHash));
+        assert.equal(0x0, await instance.parentOf(nodeHash));
+        assert.isTrue((await instance.expiryOf(nodeHash)).toString(10) === existingExpiry.toString(10));
+
+        assert.equal(0x0, await instance.seeAlso(nodeHash));
+        assert.equal(0x0, await instance.seeAddress(nodeHash));
+        assert.equal(null, await instance.nodeBody(nodeHash));
+    });
+
+    it("should be possible for owners of node to reclaim an existing node with non-special case parent", async () => {
+        // This is a case 1 test with non-special parent case..
+        let instance = await akaf.deployed();
+
+        let parentHash = await instance.hashOf(0x0, [0x1]);
+        let nodeHash = await instance.hashOf(parentHash, [0x2]);
+
+        let existingExpiry = await instance.expiryOf(nodeHash);
+
+        await sleep(1000);
+
+        await instance.claim(parentHash, [0x2]);
+
+        assert.equal(accounts[0], await instance.ownerOf(nodeHash));
+        assert.isTrue(parentHash.eq(await instance.parentOf(nodeHash)));
+        assert.isTrue((await instance.expiryOf(nodeHash)).toString(10) === existingExpiry.toString(10));
+
+        assert.equal(0x0, await instance.seeAlso(nodeHash));
+        assert.equal(0x0, await instance.seeAddress(nodeHash));
+        assert.equal(null, await instance.nodeBody(nodeHash));
+    });
+
+    it("should be possible for owners of node to update node attributes", async () => {
+        let instance = await akaf.deployed();
+
+        let nodeHash = await instance.hashOf(0x0, [0x1]);
+
+        assert.equal(0x0, await instance.seeAlso(nodeHash));
+        assert.equal(0x0, await instance.seeAddress(nodeHash));
+        assert.equal(null, await instance.nodeBody(nodeHash));
+
+        await instance.setSeeAlso(nodeHash, 0x1);
+        await instance.setSeeAddress(nodeHash, accounts[1]);
+        await instance.setNodeBody(nodeHash, [0x1, 0x2, 0x3]);
+        await instance.setTokenURI(nodeHash, "akaf://abc");
+
+        assert.equal(0x1, await instance.seeAlso(nodeHash));
+        assert.equal(accounts[1], await instance.seeAddress(nodeHash));
+        assert.equal(0x010203, await instance.nodeBody(nodeHash));
+        assert.equal("akaf://abc", await instance.tokenURI(nodeHash));
+    });
+
+    it("should be possible for owners of node to reclaim without changing any node attributes", async () => {
+        // This is a case 1 test with special case parent..
+        let instance = await akaf.deployed();
+
+        let nodeHash = await instance.hashOf(0x0, [0x1]);
+
+        await instance.claim(0x0, [0x1]);
+
+        assert.equal(0x1, await instance.seeAlso(nodeHash));
+        assert.equal(accounts[1], await instance.seeAddress(nodeHash));
+        assert.equal(0x010203, await instance.nodeBody(nodeHash));
+    });
+
+    it("should not be possible for non-owners of a parent to reclaim an existing child node not owned by caller", async () => {
+        let instance = await akaf.deployed();
+
+        let parentHash = await instance.hashOf(0x0, [0x1]);
+        let nodeHash = await instance.hashOf(parentHash, [0x2]);
+
+        assert.equal(accounts[0], await instance.ownerOf(nodeHash));
+        await instance.claim(parentHash, [0x2], {from: accounts[1]});
+        assert.equal(accounts[0], await instance.ownerOf(nodeHash));
+    });
+
+    it("should not be possible for non-owners of a parent to claim a new child node", async () => {
+        let instance = await akaf.deployed();
+
+        let parentHash = await instance.hashOf(0x0, [0x1]);
+        let nodeHash = await instance.hashOf(parentHash, [0x3]);
+
+        await expectRevert(instance.ownerOf(nodeHash), "ERC721: owner query for nonexistent token");
+        await instance.claim(parentHash, [0x3], {from: accounts[1]});
+        await expectRevert(instance.ownerOf(nodeHash), "ERC721: owner query for nonexistent token");
+    });
+
+    it("should be possible for non-owners of a parent to reclaim an existing child node owned by them", async () => {
+        // This is a case 1 test..
+        let instance = await akaf.deployed();
+
+        let parentHash = await instance.hashOf(0x0, [0x1]);
+        let nodeHash = await instance.hashOf(parentHash, [0x2]);
+
+        assert.equal(accounts[0], await instance.ownerOf(nodeHash));
+        await instance.transferFrom(accounts[0], accounts[1], nodeHash);
+        assert.equal(accounts[1], await instance.ownerOf(nodeHash));
+
+        let existingExpiry = await instance.expiryOf(nodeHash);
+
+        await sleep(1000);
+
+        await instance.claim(parentHash, [0x2], {from: accounts[1]});
+
+        assert.isTrue((await instance.expiryOf(nodeHash)).toString(10) === existingExpiry.toString(10));
+
+        await instance.transferFrom(accounts[1], accounts[0], nodeHash, {from: accounts[1]});
+    });
+
+    it("should be possible for owners of node to reclaim an expired node on special case parent", async () => {
+        // This is a case 3 test with special case parent..
+        let instance = await akaf.deployed();
+
+        let nodeHash = await instance.hashOf(0x0, [0x1]);
+
+        await instance.expireNode(nodeHash);
+
+        let existingExpiry = await instance.expiryOf(nodeHash);
+
+        await sleep(1000);
+
+        await instance.claim(0x0, [0x1]);
+
+        assert.isTrue((await instance.expiryOf(nodeHash)).gt(existingExpiry));
+    });
+
+    it("should be possible for owners of node to reclaim an expired node on non-special case parent", async () => {
+        // This is a case 3 test..
+        let instance = await akaf.deployed();
+
+        let parentHash = await instance.hashOf(0x0, [0x1]);
+        let nodeHash = await instance.hashOf(parentHash, [0x2]);
+
+        await instance.expireNode(nodeHash);
+
+        let existingExpiry = await instance.expiryOf(nodeHash);
+
+        await sleep(1000);
+
+        await instance.claim(parentHash, [0x2]);
+
+        assert.isTrue((await instance.expiryOf(nodeHash)).gt(existingExpiry));
+    });
+
+    it("should be possible for non-owners of node to reclaim an expired node on special case parent", async () => {
+        // This is a case 3 test with special case parent..
+        let instance = await akaf.deployed();
+
+        let nodeHash = await instance.hashOf(0x0, [0x1]);
+
+        await instance.transferFrom(accounts[0], accounts[1], nodeHash);
+        assert.equal(accounts[1], await instance.ownerOf(nodeHash));
+
+        await instance.expireNode(nodeHash, {from: accounts[1]});
+
+        let existingExpiry = await instance.expiryOf(nodeHash);
+
+        await sleep(1000);
+
+        await instance.claim(0x0, [0x1]);
+
+        assert.isTrue((await instance.expiryOf(nodeHash)).gt(existingExpiry));
+        assert.equal(accounts[0], await instance.ownerOf(nodeHash));
+    });
+
+    it("should be possible for non-owners of node to reclaim an expired node on non-special case parent", async () => {
+        // This is a case 3 test..
+        let instance = await akaf.deployed();
+
+        let parentHash = await instance.hashOf(0x0, [0x1]);
+        let nodeHash = await instance.hashOf(parentHash, [0x2]);
+
+        await instance.transferFrom(accounts[0], accounts[1], nodeHash);
+        assert.equal(accounts[1], await instance.ownerOf(nodeHash));
+
+        await instance.expireNode(nodeHash, {from: accounts[1]});
+
+        let existingExpiry = await instance.expiryOf(nodeHash);
+
+        await sleep(1000);
+
+        await instance.claim(parentHash, [0x2]);
+
+        assert.isTrue((await instance.expiryOf(nodeHash)).gt(existingExpiry));
+        assert.equal(accounts[0], await instance.ownerOf(nodeHash));
+    });
+
+    it("should only be possible to use labels within limits", async () => {
+        let instance = await akaf.deployed();
+
+        let minLength = 1;
+        let maxLength = 32;
+
+        await expectRevert(instance.claim(0x0, Array.apply(null, Array(minLength - 1)).map(function (x, i) {
+            return i + 10;
+        }), {from: accounts[5]}), "AKAP: Invalid label length");
+        await expectRevert(instance.claim(0x0, Array.apply(null, Array(maxLength + 1)).map(function (x, i) {
+            return i + 10;
+        }), {from: accounts[5]}), "AKAP: Invalid label length");
+
+        instance.claim(0x0, Array.apply(null, Array(minLength)).map(function (x, i) {
+            return i + 10;
+        }), {from: accounts[5]});
+        instance.claim(0x0, Array.apply(null, Array(maxLength)).map(function (x, i) {
+            return i + 10;
+        }), {from: accounts[5]});
+
+        assert.equal(accounts[5], await instance.ownerOf(await instance.hashOf(0x0, Array.apply(null, Array(minLength)).map(function (x, i) {
+            return i + 10;
+        }), {from: accounts[1]})));
+        assert.equal(accounts[5], await instance.ownerOf(await instance.hashOf(0x0, Array.apply(null, Array(maxLength)).map(function (x, i) {
+            return i + 10;
+        }), {from: accounts[1]})));
+    });
+
+});
diff --git a/test/akaf_events.js b/test/akaf_events.js
new file mode 100644
index 0000000..cac9c9b
--- /dev/null
+++ b/test/akaf_events.js
@@ -0,0 +1,192 @@
+// Copyright (C) 2019  Christian Felde
+// Copyright (C) 2019  Mohamed Elshami
+
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+
+// http://www.apache.org/licenses/LICENSE-2.0
+
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+const {expectEvent} = require('@openzeppelin/test-helpers');
+
+const akaf = artifacts.require("AKAF");
+
+contract("When testing AKAF events, it:", async accounts => {
+
+    it("should emit a Claim event of type ClaimCase.NEW when an owner claims a node with special case parent", async () => {
+        // This is a case 2 test with special case parent..
+        let instance = await akaf.deployed();
+        let nodeHash = await instance.hashOf(0x0, [0x1]);
+
+        let receipt = await instance.claim(0x0, [0x1]);
+
+        let args = {
+            sender: accounts[0].toString(),
+            nodeId: nodeHash.toString(),
+            parentId: "0",
+            label: "0x01",
+            claimCase: "1"
+        };
+        await expectEvent.inLogs(receipt.logs, "Claim", args);
+    });
+
+    it("should emit a Claim of type ClaimCase.RECLAIM event when owner claim existing node with special case parent", async () => {
+        // This is a case 1 test with special case parent..
+        let instance = await akaf.deployed();
+        let nodeHash = await instance.hashOf(0x0, [0x1]);
+
+        let receipt = await instance.claim(0x0, [0x1]);
+        let args = {
+            sender: accounts[0].toString(),
+            nodeId: nodeHash.toString(),
+            parentId: "0",
+            label: "0x01",
+            claimCase: "0"
+        };
+        await expectEvent.inLogs(receipt.logs, "Claim", args);
+    });
+
+    it("should emit a Claim event of type ClaimCase.NEW when an owner claims a node with non-special case parent", async () => {
+        // This is a case 2 test with non-special case parent..
+        let instance = await akaf.deployed();
+        let parentHash = await instance.hashOf(0x0, [0x1]);
+        let nodeHash = await instance.hashOf(parentHash, [0x1]);
+
+        let receipt = await instance.claim(parentHash, [0x1]);
+
+        let args = {
+            sender: accounts[0].toString(),
+            nodeId: nodeHash.toString(),
+            parentId: parentHash.toString(),
+            label: "0x01",
+            claimCase: "1"
+        };
+        await expectEvent.inLogs(receipt.logs, "Claim", args);
+    });
+
+    it("should emit a Claim of type ClaimCase.RECLAIM event when owner claim existing node with non-special case parent", async () => {
+        // This is a case 1 test with non-special case parent..
+        let instance = await akaf.deployed();
+        let parentHash = await instance.hashOf(0x0, [0x1]);
+        let nodeHash = await instance.hashOf(parentHash, [0x1]);
+
+        let receipt = await instance.claim(parentHash, [0x1]);
+        let args = {
+            sender: accounts[0].toString(),
+            nodeId: nodeHash.toString(),
+            parentId: parentHash.toString(),
+            label: "0x01",
+            claimCase: "0"
+        };
+        await expectEvent.inLogs(receipt.logs, "Claim", args);
+    });
+
+    it("should emit a Claim of type ClaimCase.TRANSFER event when new owner claim existing node on special case owner", async () => {
+        // Test case 3 emits ClaimCase.TRANSFER event with special case parent..
+        let instance = await akaf.deployed();
+        let nodeHash = await instance.hashOf(0x0, [0x2]);
+
+        await instance.claim(0x0, [0x2]);
+        await instance.transferFrom(accounts[0], accounts[1], nodeHash);
+
+        let receipt = await instance.claim(0x0, [0x2]);
+        assert.equal(0, receipt.logs.length, "No events should be emitted, expect empty logs.");
+
+        await instance.expireNode(nodeHash, {from: accounts[1]});
+
+        receipt = await instance.claim(0x0, [0x2]);
+
+        let args = {
+            sender: accounts[0].toString(),
+            nodeId: nodeHash.toString(),
+            parentId: "0",
+            label: "0x02",
+            claimCase: "2"
+        };
+        await expectEvent.inLogs(receipt.logs, "Claim", args);
+    });
+
+    it("should emit a Claim of type ClaimCase.TRANSFER event when new owner claim existing node on non-special case owner", async () => {
+        // Test case 3 emits ClaimCase.TRANSFER event with non-special case parent..
+        let instance = await akaf.deployed();
+        let parentHash = await instance.hashOf(0x0, [0x2])
+        let nodeHash = await instance.hashOf(parentHash, [0x2]);
+
+        await instance.claim(parentHash, [0x2]);
+        await instance.transferFrom(accounts[0], accounts[1], nodeHash);
+
+        let receipt = await instance.claim(parentHash, [0x2]);
+        assert.equal(0, receipt.logs.length, "No events should be emitted, expect empty logs.");
+
+        await instance.expireNode(nodeHash, {from: accounts[1]});
+
+        receipt = await instance.claim(parentHash, [0x2]);
+
+        let args = {
+            sender: accounts[0].toString(),
+            nodeId: nodeHash.toString(),
+            parentId: parentHash.toString(),
+            label: "0x02",
+            claimCase: "2"
+        };
+        await expectEvent.inLogs(receipt.logs, "Claim", args);
+    });
+
+    it("should emit AttributeChanged event when a node attribute is updated with special case parent", async () => {
+        let instance = await akaf.deployed();
+        let nodeHash = await instance.hashOf(0x0, [0x1]);
+
+        let receipt = await instance.expireNode(nodeHash);
+        let args = {sender: accounts[0].toString(), nodeId: nodeHash.toString(), attribute: "0"}; // NodeAttribute.EXPIRY
+        await expectEvent.inLogs(receipt.logs, "AttributeChanged", args);
+
+        receipt = await instance.setSeeAlso(nodeHash, 0x1);
+        args["attribute"] = "1"; // NodeAttribute.SEE_ALSO
+        await expectEvent.inLogs(receipt.logs, "AttributeChanged", args);
+
+        receipt = await instance.setSeeAddress(nodeHash, accounts[1]);
+        args["attribute"] = "2"; // NodeAttribute.SEE_ADDRESS
+        await expectEvent.inLogs(receipt.logs, "AttributeChanged", args);
+
+        receipt = await instance.setNodeBody(nodeHash, [0x1, 0x2, 0x3]);
+        args["attribute"] = "3"; // NodeAttribute.NODE_BODY
+        await expectEvent.inLogs(receipt.logs, "AttributeChanged", args);
+
+        receipt = await instance.setTokenURI(nodeHash, "akaf://abc");
+        args["attribute"] = "4"; // NodeAttribute.TOKEN_URI
+        await expectEvent.inLogs(receipt.logs, "AttributeChanged", args);
+    });
+
+    it("should emit AttributeChanged event when a node attribute is updated with non-special case parent", async () => {
+        let instance = await akaf.deployed();
+        let parentHash = await instance.hashOf(0x0, [0x2]);
+        let nodeHash = await instance.hashOf(parentHash, [0x2]);
+
+        let receipt = await instance.expireNode(nodeHash);
+        let args = {sender: accounts[0].toString(), nodeId: nodeHash.toString(), attribute: "0"}; // NodeAttribute.EXPIRY
+        await expectEvent.inLogs(receipt.logs, "AttributeChanged", args);
+
+        receipt = await instance.setSeeAlso(nodeHash, 0x1);
+        args["attribute"] = "1"; // NodeAttribute.SEE_ALSO
+        await expectEvent.inLogs(receipt.logs, "AttributeChanged", args);
+
+        receipt = await instance.setSeeAddress(nodeHash, accounts[1]);
+        args["attribute"] = "2"; // NodeAttribute.SEE_ADDRESS
+        await expectEvent.inLogs(receipt.logs, "AttributeChanged", args);
+
+        receipt = await instance.setNodeBody(nodeHash, [0x1, 0x2, 0x3]);
+        args["attribute"] = "3"; // NodeAttribute.NODE_BODY
+        await expectEvent.inLogs(receipt.logs, "AttributeChanged", args);
+
+        receipt = await instance.setTokenURI(nodeHash, "akaf://abc");
+        args["attribute"] = "4"; // NodeAttribute.TOKEN_URI
+        await expectEvent.inLogs(receipt.logs, "AttributeChanged", args);
+    });
+
+});
diff --git a/test/akap.js b/test/akap.js
index 9ff7ba9..1e18cd2 100644
--- a/test/akap.js
+++ b/test/akap.js
@@ -53,6 +53,30 @@ contract("When testing AKAP, it:", async accounts => {
         assert.equal(null, await instance.nodeBody(nodeHash));
     });
 
+    it("should be possible for any account to claim new root node children", async () => {
+        let instance = await akap.deployed();
+
+        let parentHash = 0x0;
+        let nodeHash = await instance.hashOf(parentHash, [0x5]);
+
+        await expectRevert(instance.ownerOf(nodeHash), "ERC721: owner query for nonexistent token");
+        await expectRevert(instance.parentOf(nodeHash), "AKAP: operator query for nonexistent node");
+        await expectRevert(instance.expiryOf(nodeHash), "AKAP: operator query for nonexistent node");
+        await expectRevert(instance.seeAlso(nodeHash), "AKAP: operator query for nonexistent node");
+        await expectRevert(instance.seeAddress(nodeHash), "AKAP: operator query for nonexistent node");
+        await expectRevert(instance.nodeBody(nodeHash), "AKAP: operator query for nonexistent node");
+
+        await instance.claim(parentHash, [0x5], {from: accounts[5]});
+
+        assert.equal(accounts[5], await instance.ownerOf(nodeHash));
+        assert.equal(0x0, await instance.parentOf(nodeHash));
+        assert.isTrue(await instance.expiryOf(nodeHash) > 0);
+
+        assert.equal(0x0, await instance.seeAlso(nodeHash));
+        assert.equal(0x0, await instance.seeAddress(nodeHash));
+        assert.equal(null, await instance.nodeBody(nodeHash));
+    });
+
     it("should be possible to claim a node on another owned node", async () => {
         // This is a case 2 test with non-special parent case..
         let instance = await akap.deployed();

From b36c04791e81660c753f1d776eba444169e046f9 Mon Sep 17 00:00:00 2001
From: Christian Felde <cfelde@cfelde.com>
Date: Wed, 13 May 2020 15:41:12 +0100
Subject: [PATCH 15/15] Enforce behavior of node zero (special case root node)
 in AKAF to be similar to AKAP even when the node otherwise exists for admin
 purposes

---
 build/contracts/AKAF.json | 7107 +++++++++++++++++++------------------
 contracts/AKAF.sol        |    6 +-
 package.json              |    2 +-
 3 files changed, 3692 insertions(+), 3423 deletions(-)

diff --git a/build/contracts/AKAF.json b/build/contracts/AKAF.json
index ad917ac..fa13117 100644
--- a/build/contracts/AKAF.json
+++ b/build/contracts/AKAF.json
@@ -782,25 +782,25 @@
       "type": "function"
     }
   ],
-  "metadata": "{\"compiler\":{\"version\":\"0.5.16+commit.9c3226ce\"},\"language\":\"Solidity\",\"output\":{\"abi\":[{\"inputs\":[],\"payable\":false,\"stateMutability\":\"nonpayable\",\"type\":\"constructor\"},{\"anonymous\":false,\"inputs\":[{\"indexed\":true,\"internalType\":\"address\",\"name\":\"owner\",\"type\":\"address\"},{\"indexed\":true,\"internalType\":\"address\",\"name\":\"approved\",\"type\":\"address\"},{\"indexed\":true,\"internalType\":\"uint256\",\"name\":\"tokenId\",\"type\":\"uint256\"}],\"name\":\"Approval\",\"type\":\"event\"},{\"anonymous\":false,\"inputs\":[{\"indexed\":true,\"internalType\":\"address\",\"name\":\"owner\",\"type\":\"address\"},{\"indexed\":true,\"internalType\":\"address\",\"name\":\"operator\",\"type\":\"address\"},{\"indexed\":false,\"internalType\":\"bool\",\"name\":\"approved\",\"type\":\"bool\"}],\"name\":\"ApprovalForAll\",\"type\":\"event\"},{\"anonymous\":false,\"inputs\":[{\"indexed\":true,\"internalType\":\"address\",\"name\":\"sender\",\"type\":\"address\"},{\"indexed\":true,\"internalType\":\"uint256\",\"name\":\"nodeId\",\"type\":\"uint256\"},{\"indexed\":false,\"internalType\":\"enum IAKAP.NodeAttribute\",\"name\":\"attribute\",\"type\":\"uint8\"}],\"name\":\"AttributeChanged\",\"type\":\"event\"},{\"anonymous\":false,\"inputs\":[{\"indexed\":true,\"internalType\":\"address\",\"name\":\"sender\",\"type\":\"address\"},{\"indexed\":true,\"internalType\":\"uint256\",\"name\":\"nodeId\",\"type\":\"uint256\"},{\"indexed\":true,\"internalType\":\"uint256\",\"name\":\"parentId\",\"type\":\"uint256\"},{\"indexed\":false,\"internalType\":\"bytes\",\"name\":\"label\",\"type\":\"bytes\"},{\"indexed\":false,\"internalType\":\"enum IAKAP.ClaimCase\",\"name\":\"claimCase\",\"type\":\"uint8\"}],\"name\":\"Claim\",\"type\":\"event\"},{\"anonymous\":false,\"inputs\":[{\"indexed\":true,\"internalType\":\"address\",\"name\":\"from\",\"type\":\"address\"},{\"indexed\":true,\"internalType\":\"address\",\"name\":\"to\",\"type\":\"address\"},{\"indexed\":true,\"internalType\":\"uint256\",\"name\":\"tokenId\",\"type\":\"uint256\"}],\"name\":\"Transfer\",\"type\":\"event\"},{\"constant\":false,\"inputs\":[{\"internalType\":\"address\",\"name\":\"to\",\"type\":\"address\"},{\"internalType\":\"uint256\",\"name\":\"tokenId\",\"type\":\"uint256\"}],\"name\":\"approve\",\"outputs\":[],\"payable\":false,\"stateMutability\":\"nonpayable\",\"type\":\"function\"},{\"constant\":true,\"inputs\":[{\"internalType\":\"address\",\"name\":\"owner\",\"type\":\"address\"}],\"name\":\"balanceOf\",\"outputs\":[{\"internalType\":\"uint256\",\"name\":\"\",\"type\":\"uint256\"}],\"payable\":false,\"stateMutability\":\"view\",\"type\":\"function\"},{\"constant\":false,\"inputs\":[{\"internalType\":\"uint256\",\"name\":\"parentId\",\"type\":\"uint256\"},{\"internalType\":\"bytes\",\"name\":\"label\",\"type\":\"bytes\"}],\"name\":\"claim\",\"outputs\":[{\"internalType\":\"uint256\",\"name\":\"status\",\"type\":\"uint256\"}],\"payable\":false,\"stateMutability\":\"nonpayable\",\"type\":\"function\"},{\"constant\":true,\"inputs\":[{\"internalType\":\"uint256\",\"name\":\"nodeId\",\"type\":\"uint256\"}],\"name\":\"exists\",\"outputs\":[{\"internalType\":\"bool\",\"name\":\"\",\"type\":\"bool\"}],\"payable\":false,\"stateMutability\":\"view\",\"type\":\"function\"},{\"constant\":false,\"inputs\":[{\"internalType\":\"uint256\",\"name\":\"nodeId\",\"type\":\"uint256\"}],\"name\":\"expireNode\",\"outputs\":[],\"payable\":false,\"stateMutability\":\"nonpayable\",\"type\":\"function\"},{\"constant\":true,\"inputs\":[{\"internalType\":\"uint256\",\"name\":\"nodeId\",\"type\":\"uint256\"}],\"name\":\"expiryOf\",\"outputs\":[{\"internalType\":\"uint256\",\"name\":\"\",\"type\":\"uint256\"}],\"payable\":false,\"stateMutability\":\"view\",\"type\":\"function\"},{\"constant\":true,\"inputs\":[{\"internalType\":\"uint256\",\"name\":\"tokenId\",\"type\":\"uint256\"}],\"name\":\"getApproved\",\"outputs\":[{\"internalType\":\"address\",\"name\":\"\",\"type\":\"address\"}],\"payable\":false,\"stateMutability\":\"view\",\"type\":\"function\"},{\"constant\":true,\"inputs\":[{\"internalType\":\"uint256\",\"name\":\"parentId\",\"type\":\"uint256\"},{\"internalType\":\"bytes\",\"name\":\"label\",\"type\":\"bytes\"}],\"name\":\"hashOf\",\"outputs\":[{\"internalType\":\"uint256\",\"name\":\"id\",\"type\":\"uint256\"}],\"payable\":false,\"stateMutability\":\"pure\",\"type\":\"function\"},{\"constant\":true,\"inputs\":[{\"internalType\":\"address\",\"name\":\"owner\",\"type\":\"address\"},{\"internalType\":\"address\",\"name\":\"operator\",\"type\":\"address\"}],\"name\":\"isApprovedForAll\",\"outputs\":[{\"internalType\":\"bool\",\"name\":\"\",\"type\":\"bool\"}],\"payable\":false,\"stateMutability\":\"view\",\"type\":\"function\"},{\"constant\":true,\"inputs\":[{\"internalType\":\"uint256\",\"name\":\"nodeId\",\"type\":\"uint256\"}],\"name\":\"isApprovedOrOwner\",\"outputs\":[{\"internalType\":\"bool\",\"name\":\"\",\"type\":\"bool\"}],\"payable\":false,\"stateMutability\":\"view\",\"type\":\"function\"},{\"constant\":true,\"inputs\":[],\"name\":\"name\",\"outputs\":[{\"internalType\":\"string\",\"name\":\"\",\"type\":\"string\"}],\"payable\":false,\"stateMutability\":\"view\",\"type\":\"function\"},{\"constant\":true,\"inputs\":[{\"internalType\":\"uint256\",\"name\":\"nodeId\",\"type\":\"uint256\"}],\"name\":\"nodeBody\",\"outputs\":[{\"internalType\":\"bytes\",\"name\":\"\",\"type\":\"bytes\"}],\"payable\":false,\"stateMutability\":\"view\",\"type\":\"function\"},{\"constant\":true,\"inputs\":[{\"internalType\":\"uint256\",\"name\":\"tokenId\",\"type\":\"uint256\"}],\"name\":\"ownerOf\",\"outputs\":[{\"internalType\":\"address\",\"name\":\"\",\"type\":\"address\"}],\"payable\":false,\"stateMutability\":\"view\",\"type\":\"function\"},{\"constant\":true,\"inputs\":[{\"internalType\":\"uint256\",\"name\":\"nodeId\",\"type\":\"uint256\"}],\"name\":\"parentOf\",\"outputs\":[{\"internalType\":\"uint256\",\"name\":\"\",\"type\":\"uint256\"}],\"payable\":false,\"stateMutability\":\"view\",\"type\":\"function\"},{\"constant\":false,\"inputs\":[{\"internalType\":\"address\",\"name\":\"from\",\"type\":\"address\"},{\"internalType\":\"address\",\"name\":\"to\",\"type\":\"address\"},{\"internalType\":\"uint256\",\"name\":\"tokenId\",\"type\":\"uint256\"}],\"name\":\"safeTransferFrom\",\"outputs\":[],\"payable\":false,\"stateMutability\":\"nonpayable\",\"type\":\"function\"},{\"constant\":false,\"inputs\":[{\"internalType\":\"address\",\"name\":\"from\",\"type\":\"address\"},{\"internalType\":\"address\",\"name\":\"to\",\"type\":\"address\"},{\"internalType\":\"uint256\",\"name\":\"tokenId\",\"type\":\"uint256\"},{\"internalType\":\"bytes\",\"name\":\"_data\",\"type\":\"bytes\"}],\"name\":\"safeTransferFrom\",\"outputs\":[],\"payable\":false,\"stateMutability\":\"nonpayable\",\"type\":\"function\"},{\"constant\":true,\"inputs\":[{\"internalType\":\"uint256\",\"name\":\"nodeId\",\"type\":\"uint256\"}],\"name\":\"seeAddress\",\"outputs\":[{\"internalType\":\"address\",\"name\":\"\",\"type\":\"address\"}],\"payable\":false,\"stateMutability\":\"view\",\"type\":\"function\"},{\"constant\":true,\"inputs\":[{\"internalType\":\"uint256\",\"name\":\"nodeId\",\"type\":\"uint256\"}],\"name\":\"seeAlso\",\"outputs\":[{\"internalType\":\"uint256\",\"name\":\"\",\"type\":\"uint256\"}],\"payable\":false,\"stateMutability\":\"view\",\"type\":\"function\"},{\"constant\":false,\"inputs\":[{\"internalType\":\"address\",\"name\":\"to\",\"type\":\"address\"},{\"internalType\":\"bool\",\"name\":\"approved\",\"type\":\"bool\"}],\"name\":\"setApprovalForAll\",\"outputs\":[],\"payable\":false,\"stateMutability\":\"nonpayable\",\"type\":\"function\"},{\"constant\":false,\"inputs\":[{\"internalType\":\"uint256\",\"name\":\"nodeId\",\"type\":\"uint256\"},{\"internalType\":\"bytes\",\"name\":\"value\",\"type\":\"bytes\"}],\"name\":\"setNodeBody\",\"outputs\":[],\"payable\":false,\"stateMutability\":\"nonpayable\",\"type\":\"function\"},{\"constant\":false,\"inputs\":[{\"internalType\":\"uint256\",\"name\":\"nodeId\",\"type\":\"uint256\"},{\"internalType\":\"address\",\"name\":\"value\",\"type\":\"address\"}],\"name\":\"setSeeAddress\",\"outputs\":[],\"payable\":false,\"stateMutability\":\"nonpayable\",\"type\":\"function\"},{\"constant\":false,\"inputs\":[{\"internalType\":\"uint256\",\"name\":\"nodeId\",\"type\":\"uint256\"},{\"internalType\":\"uint256\",\"name\":\"value\",\"type\":\"uint256\"}],\"name\":\"setSeeAlso\",\"outputs\":[],\"payable\":false,\"stateMutability\":\"nonpayable\",\"type\":\"function\"},{\"constant\":false,\"inputs\":[{\"internalType\":\"uint256\",\"name\":\"nodeId\",\"type\":\"uint256\"},{\"internalType\":\"string\",\"name\":\"uri\",\"type\":\"string\"}],\"name\":\"setTokenURI\",\"outputs\":[],\"payable\":false,\"stateMutability\":\"nonpayable\",\"type\":\"function\"},{\"constant\":true,\"inputs\":[{\"internalType\":\"bytes4\",\"name\":\"interfaceId\",\"type\":\"bytes4\"}],\"name\":\"supportsInterface\",\"outputs\":[{\"internalType\":\"bool\",\"name\":\"\",\"type\":\"bool\"}],\"payable\":false,\"stateMutability\":\"view\",\"type\":\"function\"},{\"constant\":true,\"inputs\":[],\"name\":\"symbol\",\"outputs\":[{\"internalType\":\"string\",\"name\":\"\",\"type\":\"string\"}],\"payable\":false,\"stateMutability\":\"view\",\"type\":\"function\"},{\"constant\":true,\"inputs\":[{\"internalType\":\"uint256\",\"name\":\"index\",\"type\":\"uint256\"}],\"name\":\"tokenByIndex\",\"outputs\":[{\"internalType\":\"uint256\",\"name\":\"\",\"type\":\"uint256\"}],\"payable\":false,\"stateMutability\":\"view\",\"type\":\"function\"},{\"constant\":true,\"inputs\":[{\"internalType\":\"address\",\"name\":\"owner\",\"type\":\"address\"},{\"internalType\":\"uint256\",\"name\":\"index\",\"type\":\"uint256\"}],\"name\":\"tokenOfOwnerByIndex\",\"outputs\":[{\"internalType\":\"uint256\",\"name\":\"\",\"type\":\"uint256\"}],\"payable\":false,\"stateMutability\":\"view\",\"type\":\"function\"},{\"constant\":true,\"inputs\":[{\"internalType\":\"uint256\",\"name\":\"tokenId\",\"type\":\"uint256\"}],\"name\":\"tokenURI\",\"outputs\":[{\"internalType\":\"string\",\"name\":\"\",\"type\":\"string\"}],\"payable\":false,\"stateMutability\":\"view\",\"type\":\"function\"},{\"constant\":true,\"inputs\":[],\"name\":\"totalSupply\",\"outputs\":[{\"internalType\":\"uint256\",\"name\":\"\",\"type\":\"uint256\"}],\"payable\":false,\"stateMutability\":\"view\",\"type\":\"function\"},{\"constant\":false,\"inputs\":[{\"internalType\":\"address\",\"name\":\"from\",\"type\":\"address\"},{\"internalType\":\"address\",\"name\":\"to\",\"type\":\"address\"},{\"internalType\":\"uint256\",\"name\":\"tokenId\",\"type\":\"uint256\"}],\"name\":\"transferFrom\",\"outputs\":[],\"payable\":false,\"stateMutability\":\"nonpayable\",\"type\":\"function\"}],\"devdoc\":{\"methods\":{\"approve(address,uint256)\":{\"details\":\"Approves another address to transfer the given token ID The zero address indicates there is no approved address. There can only be one approved address per token at a given time. Can only be called by the token owner or an approved operator.\",\"params\":{\"to\":\"address to be approved for the given token ID\",\"tokenId\":\"uint256 ID of the token to be approved\"}},\"balanceOf(address)\":{\"details\":\"Gets the balance of the specified address.\",\"params\":{\"owner\":\"address to query the balance of\"},\"return\":\"uint256 representing the amount owned by the passed address\"},\"getApproved(uint256)\":{\"details\":\"Gets the approved address for a token ID, or zero if no address set Reverts if the token ID does not exist.\",\"params\":{\"tokenId\":\"uint256 ID of the token to query the approval of\"},\"return\":\"address currently approved for the given token ID\"},\"isApprovedForAll(address,address)\":{\"details\":\"Tells whether an operator is approved by a given owner.\",\"params\":{\"operator\":\"operator address which you want to query the approval of\",\"owner\":\"owner address which you want to query the approval of\"},\"return\":\"bool whether the given operator is approved by the given owner\"},\"name()\":{\"details\":\"Gets the token name.\",\"return\":\"string representing the token name\"},\"ownerOf(uint256)\":{\"details\":\"Gets the owner of the specified token ID.\",\"params\":{\"tokenId\":\"uint256 ID of the token to query the owner of\"},\"return\":\"address currently marked as the owner of the given token ID\"},\"safeTransferFrom(address,address,uint256)\":{\"details\":\"Safely transfers the ownership of a given token ID to another address If the target address is a contract, it must implement `onERC721Received`, which is called upon a safe transfer, and return the magic value `bytes4(keccak256(\\\"onERC721Received(address,address,uint256,bytes)\\\"))`; otherwise, the transfer is reverted. Requires the msg.sender to be the owner, approved, or operator\",\"params\":{\"from\":\"current owner of the token\",\"to\":\"address to receive the ownership of the given token ID\",\"tokenId\":\"uint256 ID of the token to be transferred\"}},\"safeTransferFrom(address,address,uint256,bytes)\":{\"details\":\"Safely transfers the ownership of a given token ID to another address If the target address is a contract, it must implement `onERC721Received`, which is called upon a safe transfer, and return the magic value `bytes4(keccak256(\\\"onERC721Received(address,address,uint256,bytes)\\\"))`; otherwise, the transfer is reverted. Requires the msg.sender to be the owner, approved, or operator\",\"params\":{\"_data\":\"bytes data to send along with a safe transfer check\",\"from\":\"current owner of the token\",\"to\":\"address to receive the ownership of the given token ID\",\"tokenId\":\"uint256 ID of the token to be transferred\"}},\"setApprovalForAll(address,bool)\":{\"details\":\"Sets or unsets the approval of a given operator An operator is allowed to transfer all tokens of the sender on their behalf.\",\"params\":{\"approved\":\"representing the status of the approval to be set\",\"to\":\"operator address to set the approval\"}},\"supportsInterface(bytes4)\":{\"details\":\"See `IERC165.supportsInterface`.     * Time complexity O(1), guaranteed to always use less than 30 000 gas.\"},\"symbol()\":{\"details\":\"Gets the token symbol.\",\"return\":\"string representing the token symbol\"},\"tokenByIndex(uint256)\":{\"details\":\"Gets the token ID at a given index of all the tokens in this contract Reverts if the index is greater or equal to the total number of tokens.\",\"params\":{\"index\":\"uint256 representing the index to be accessed of the tokens list\"},\"return\":\"uint256 token ID at the given index of the tokens list\"},\"tokenOfOwnerByIndex(address,uint256)\":{\"details\":\"Gets the token ID at a given index of the tokens list of the requested owner.\",\"params\":{\"index\":\"uint256 representing the index to be accessed of the requested tokens list\",\"owner\":\"address owning the tokens list to be accessed\"},\"return\":\"uint256 token ID at the given index of the tokens list owned by the requested address\"},\"tokenURI(uint256)\":{\"details\":\"Returns an URI for a given token ID. Throws if the token ID does not exist. May return an empty string.\",\"params\":{\"tokenId\":\"uint256 ID of the token to query\"}},\"totalSupply()\":{\"details\":\"Gets the total amount of tokens stored by the contract.\",\"return\":\"uint256 representing the total amount of tokens\"},\"transferFrom(address,address,uint256)\":{\"details\":\"Transfers the ownership of a given token ID to another address. Usage of this method is discouraged, use `safeTransferFrom` whenever possible. Requires the msg.sender to be the owner, approved, or operator.\",\"params\":{\"from\":\"current owner of the token\",\"to\":\"address to receive the ownership of the given token ID\",\"tokenId\":\"uint256 ID of the token to be transferred\"}}}},\"userdoc\":{\"methods\":{}}},\"settings\":{\"compilationTarget\":{\"/private/tmp/eth/akap/contracts/AKAF.sol\":\"AKAF\"},\"evmVersion\":\"istanbul\",\"libraries\":{},\"optimizer\":{\"enabled\":true,\"runs\":200},\"remappings\":[]},\"sources\":{\"/private/tmp/eth/akap/contracts/AKAF.sol\":{\"keccak256\":\"0xccf25695c05e171710ff23fcf8c92e51ed30ef8df2e01a546eae1200d0a69a40\",\"urls\":[\"bzz-raw://eaeb36df9e6b23870d3f6804cb7f95546d276ab7ad3211cb81c59ec59cadd795\",\"dweb:/ipfs/QmSKrLHtEiUhCNyzcGZHs2yjfLDNRrUxP3yJfHF1Z9R4Na\"]},\"/private/tmp/eth/akap/contracts/IAKAP.sol\":{\"keccak256\":\"0x2163f1519406e467ca39601ce7dfed73d104b3da8bdd0146bd6ca2d14388276a\",\"urls\":[\"bzz-raw://2e4395653541d8e0a6a5bad617a3b7af3efcd8fdea988edf4c7644aabbb8e6b0\",\"dweb:/ipfs/QmPDi6uqVTLCp1v725r2qfC5GNsiGCwbMCpZWSjc34u1Ek\"]},\"@openzeppelin/contracts/drafts/Counters.sol\":{\"keccak256\":\"0x5eb69360d3441ab2ee799bd7c007cccbffb0896f12b2dfe1456193e2aa180a11\",\"urls\":[\"bzz-raw://072e8b5a1b5acfc2acba9b6fb87d1dc57065aad44572617ad46b014074969eb3\",\"dweb:/ipfs/QmVTDHUriaxBJqiWCWgWC8vYaYYfXSz883LsowzTx1DcpK\"]},\"@openzeppelin/contracts/introspection/ERC165.sol\":{\"keccak256\":\"0xac2eacd7e7762e275442f28f21d821544df5aae2ed7698af13be8c41b7005e2e\",\"urls\":[\"bzz-raw://8bdbefb642e7b08535c66bbf074e576cfef2300cdf910c1e0b211f6393833a28\",\"dweb:/ipfs/QmQhfx2Ufr8a2gFXm3KogL66xGgAuAWMwcamkWFKGG6Vya\"]},\"@openzeppelin/contracts/introspection/IERC165.sol\":{\"keccak256\":\"0x661553e43d7c4fbb2de504e5999fd5c104d367488350ed5bf023031bd1ba5ac5\",\"urls\":[\"bzz-raw://b40442c5b350b57b88a081a1eacd2bac962d4ecc1f029f5447a18986f08f6f14\",\"dweb:/ipfs/QmV7wjtRf11ibUHh4g8JjuhMpy68pPhV95L2y46UBoRfsZ\"]},\"@openzeppelin/contracts/math/SafeMath.sol\":{\"keccak256\":\"0xd1804d04fb39689453f673601429a99a0c68c422a981fc338773df9a59180fe9\",\"urls\":[\"bzz-raw://1b9307920e0378d58c6677f8952ad090a9ecb30e878835e301a0d18386a870c1\",\"dweb:/ipfs/QmYYixTDVF4FXqFpYzEcufAwEY9BFBJ33Ew9ncsGvD7btC\"]},\"@openzeppelin/contracts/token/ERC721/ERC721.sol\":{\"keccak256\":\"0xf151df411bbf4eaef1fc8e8480cd10c2cd985f1a36517e63981517610213efc1\",\"urls\":[\"bzz-raw://2a277b3cc3a1a03af5c039bc75cd16bb2d23b529cb2564cc0bea1b1e0eb4dd68\",\"dweb:/ipfs/QmNRxggY8qmjjuLnxggRqE8uBueuCktLwi9YYHagWoaEJ8\"]},\"@openzeppelin/contracts/token/ERC721/ERC721Enumerable.sol\":{\"keccak256\":\"0xb42cb5a7471d98114af8f7050e7d08dfd543f432713a8aee72a45ce9485f5bed\",\"urls\":[\"bzz-raw://324b8d35f37d91fd863130a6e4b83d55b8b95264af011a008ec03e084ac91b75\",\"dweb:/ipfs/QmWY61QSSJPkgDb2WZR1unTfuSrd5jBp2tC7RrCrQxC9CL\"]},\"@openzeppelin/contracts/token/ERC721/ERC721Full.sol\":{\"keccak256\":\"0x908d0d6fd8d30cffb1fe9fce1f7db6802cb885fbe88d2f170539e8dcc6afa946\",\"urls\":[\"bzz-raw://ed5f7883e2a50b3efeaae764c77152bef9d3d9965832ef095c94e79c2e887257\",\"dweb:/ipfs/QmaLRQ1ziLAo18gvM2EbKhvHC3ys4333mTxCFfoEJ8AodY\"]},\"@openzeppelin/contracts/token/ERC721/ERC721Metadata.sol\":{\"keccak256\":\"0xe5e28b1a405164faa98f8ecd8ed2b00907b89e3d58b2b2bb8ac8b12bc5714489\",\"urls\":[\"bzz-raw://0d5d3f0caa7e7ec91f8a2894e1a6a3513a0c79aa91a498ebf8fdbdd07c12286f\",\"dweb:/ipfs/QmP7r4jQMRxXb5JHy5V9bgMz5FmTezcSDd7ivyzJN88pTR\"]},\"@openzeppelin/contracts/token/ERC721/IERC721.sol\":{\"keccak256\":\"0xce48937a8007c580b8e2e35705738c922dd17540de89ebee6df06d2917a3f9fc\",\"urls\":[\"bzz-raw://1d117265103ee3efcd454d3aafb3e79a115f9bca6dec78a1229558eb30d14d05\",\"dweb:/ipfs/QmTm5Z1c7zzPiG3Cfj1eBMB23AeiEFGgvmTFQVaeEWXVCw\"]},\"@openzeppelin/contracts/token/ERC721/IERC721Enumerable.sol\":{\"keccak256\":\"0x5c573acd6c7b98d71f3c1c44d63dc17400b0fd7b26a52c9fded43b8b533dc4ec\",\"urls\":[\"bzz-raw://e23af54444d2dbfae58895339eb7b189e1ba5d0b7abde63716e7ef7da23b2fde\",\"dweb:/ipfs/QmZva7dE1SMd1yyizzc6ivSoBXXwpNveLV7iFNATNpq68Y\"]},\"@openzeppelin/contracts/token/ERC721/IERC721Metadata.sol\":{\"keccak256\":\"0x2b2b99dc7fe8fcd1f9427d00822b99cbc683dc21f5dd7532bd7e2281fd2c2ca2\",\"urls\":[\"bzz-raw://a8024c00e34efaf328f9592e76823c79f25fa0f6006bdf4a1e7fea204afd4773\",\"dweb:/ipfs/QmZns9jTr7843njq3J2iL2LLoWXK5mdzN1bDGd9GL3ahhD\"]},\"@openzeppelin/contracts/token/ERC721/IERC721Receiver.sol\":{\"keccak256\":\"0xadbfb7028fb0f851dc848a48b9e54e7c89ffd2c2edc12fa4ba9bb383dfaa83d9\",\"urls\":[\"bzz-raw://90dceab42713246639100b87d6650037d68e4a2ab2dd4b5768c3ed35d6b3a4a0\",\"dweb:/ipfs/QmQ42UW5nchMoYP9bU9F1AJga5chG8j92fCPkURpiDKsCu\"]},\"@openzeppelin/contracts/utils/Address.sol\":{\"keccak256\":\"0xf3358e5819ca73357abd6c90bdfffd0474af54364897f6b3e3234c4b71fbe9a1\",\"urls\":[\"bzz-raw://75ae8d04454d1511a2ed986cc8585736f05c5c25280683b3d24712a9f414a4bf\",\"dweb:/ipfs/Qmb3kNCoBUZdah1AgBBD4zMk898j5Qw8ahT1w5cCMYp5Y3\"]}},\"version\":1}",
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-  "source": "// Copyright (C) 2019  Christian Felde\n// Copyright (C) 2019  Mohamed Elshami\n\n// Licensed under the Apache License, Version 2.0 (the \"License\");\n// you may not use this file except in compliance with the License.\n// You may obtain a copy of the License at\n\n// http://www.apache.org/licenses/LICENSE-2.0\n\n// Unless required by applicable law or agreed to in writing, software\n// distributed under the License is distributed on an \"AS IS\" BASIS,\n// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.\n// See the License for the specific language governing permissions and\n// limitations under the License.\n\npragma solidity ^0.5.0;\n\nimport \"./IAKAP.sol\";\nimport \"@openzeppelin/contracts/token/ERC721/ERC721Full.sol\";\n\ncontract AKAF is IAKAP, ERC721Full {\n    struct Node {\n        uint parentId;\n        uint expiry;\n        uint seeAlso;\n        address seeAddress;\n        bytes nodeBody;\n    }\n\n    mapping(uint => Node) private nodes;\n\n    constructor() ERC721Full(\"AKA Forever Registry\", \"AKAF\") public {\n        // Create the special root node and assigned msg.sender as owner\n        uint nodeId = 0;\n        _mint(_msgSender(), nodeId);\n        nodes[nodeId].expiry = uint(-1);\n        emit Claim(_msgSender(), nodeId, nodeId, \"\", ClaimCase.NEW);\n    }\n\n    function _msgSender() internal view returns (address payable) {\n        return msg.sender;\n    }\n\n    modifier onlyExisting(uint nodeId) {\n        require(_exists(nodeId), \"AKAP: operator query for nonexistent node\");\n\n        _;\n    }\n\n    modifier onlyApproved(uint nodeId) {\n        require(_exists(nodeId) && _isApprovedOrOwner(_msgSender(), nodeId), \"AKAP: set value caller is not owner nor approved\");\n\n        _;\n    }\n\n    function hashOf(uint parentId, bytes memory label) public pure returns (uint id) {\n        require(label.length >= 1 && label.length <= 32, \"AKAP: Invalid label length\");\n\n        bytes32 labelHash = keccak256(label);\n        bytes32 nodeId = keccak256(abi.encode(parentId, labelHash));\n\n        require(nodeId > 0, \"AKAP: Invalid node hash\");\n\n        return uint(nodeId);\n    }\n\n    function claim(uint parentId, bytes calldata label) external returns (uint status) {\n        // Claim logic is as found in AKAP, but with an expiry timestamp set to \"forever\".\n        // Owners of a node on an AKAF contract does hence not need to reclaim their nodes.\n        // Node owners may still explicitly expire a node if they wish.\n\n        // Get hash/id of the node caller is claiming\n        uint nodeId = hashOf(parentId, label);\n\n        bool isParentOwner = _isApprovedOrOwner(_msgSender(), parentId);\n        bool nodeExists = _exists(nodeId);\n\n        if (nodeExists && _isApprovedOrOwner(_msgSender(), nodeId)) {\n            require(parentId == nodes[nodeId].parentId, \"AKAP: Invalid parent hash\");\n\n            // Caller is current owner/approved, extend lease..\n            nodes[nodeId].expiry = uint(-1);\n            emit Claim(_msgSender(), nodeId, parentId, label, ClaimCase.RECLAIM);\n\n            return 1;\n        } else if (!nodeExists && isParentOwner) {\n            // Node does not exist, allocate to caller..\n            _mint(_msgSender(), nodeId);\n            nodes[nodeId].parentId = parentId;\n            nodes[nodeId].expiry = uint(-1);\n            emit Claim(_msgSender(), nodeId, parentId, label, ClaimCase.NEW);\n\n            return 2;\n        } else if (nodeExists && nodes[nodeId].expiry <= now && isParentOwner) {\n            require(parentId == nodes[nodeId].parentId, \"AKAP: Invalid parent hash\");\n\n            // Node exists and is expired, allocate to caller and extend lease..\n            _transferFrom(ownerOf(nodeId), _msgSender(), nodeId);\n            nodes[nodeId].expiry = uint(-1);\n            emit Claim(_msgSender(), nodeId, parentId, label, ClaimCase.TRANSFER);\n\n            return 3;\n        }\n\n        // No action\n        return 0;\n    }\n\n    function exists(uint nodeId) external view returns (bool) {\n        return _exists(nodeId);\n    }\n\n    function isApprovedOrOwner(uint nodeId) external view returns (bool) {\n        return _isApprovedOrOwner(_msgSender(), nodeId);\n    }\n\n    function parentOf(uint nodeId) external view onlyExisting(nodeId) returns (uint) {\n        return nodes[nodeId].parentId;\n    }\n\n    function expiryOf(uint nodeId) external view onlyExisting(nodeId) returns (uint) {\n        return nodes[nodeId].expiry;\n    }\n\n    function seeAlso(uint nodeId) external view onlyExisting(nodeId) returns (uint) {\n        return nodes[nodeId].seeAlso;\n    }\n\n    function seeAddress(uint nodeId) external view onlyExisting(nodeId) returns (address) {\n        return nodes[nodeId].seeAddress;\n    }\n\n    function nodeBody(uint nodeId) external view onlyExisting(nodeId) returns (bytes memory) {\n        return nodes[nodeId].nodeBody;\n    }\n\n    function expireNode(uint nodeId) external onlyApproved(nodeId) {\n        nodes[nodeId].expiry = now;\n        emit AttributeChanged(_msgSender(), nodeId, NodeAttribute.EXPIRY);\n    }\n\n    function setSeeAlso(uint nodeId, uint value) external onlyApproved(nodeId) {\n        nodes[nodeId].seeAlso = value;\n        emit AttributeChanged(_msgSender(), nodeId, NodeAttribute.SEE_ALSO);\n    }\n\n    function setSeeAddress(uint nodeId, address value) external onlyApproved(nodeId) {\n        nodes[nodeId].seeAddress = value;\n        emit AttributeChanged(_msgSender(), nodeId, NodeAttribute.SEE_ADDRESS);\n    }\n\n    function setNodeBody(uint nodeId, bytes calldata value) external onlyApproved(nodeId) {\n        nodes[nodeId].nodeBody = value;\n        emit AttributeChanged(_msgSender(), nodeId, NodeAttribute.NODE_BODY);\n    }\n\n    function setTokenURI(uint nodeId, string calldata uri) external onlyApproved(nodeId) {\n        _setTokenURI(nodeId, uri);\n        emit AttributeChanged(_msgSender(), nodeId, NodeAttribute.TOKEN_URI);\n    }\n}",
+  "metadata": "{\"compiler\":{\"version\":\"0.5.16+commit.9c3226ce\"},\"language\":\"Solidity\",\"output\":{\"abi\":[{\"inputs\":[],\"payable\":false,\"stateMutability\":\"nonpayable\",\"type\":\"constructor\"},{\"anonymous\":false,\"inputs\":[{\"indexed\":true,\"internalType\":\"address\",\"name\":\"owner\",\"type\":\"address\"},{\"indexed\":true,\"internalType\":\"address\",\"name\":\"approved\",\"type\":\"address\"},{\"indexed\":true,\"internalType\":\"uint256\",\"name\":\"tokenId\",\"type\":\"uint256\"}],\"name\":\"Approval\",\"type\":\"event\"},{\"anonymous\":false,\"inputs\":[{\"indexed\":true,\"internalType\":\"address\",\"name\":\"owner\",\"type\":\"address\"},{\"indexed\":true,\"internalType\":\"address\",\"name\":\"operator\",\"type\":\"address\"},{\"indexed\":false,\"internalType\":\"bool\",\"name\":\"approved\",\"type\":\"bool\"}],\"name\":\"ApprovalForAll\",\"type\":\"event\"},{\"anonymous\":false,\"inputs\":[{\"indexed\":true,\"internalType\":\"address\",\"name\":\"sender\",\"type\":\"address\"},{\"indexed\":true,\"internalType\":\"uint256\",\"name\":\"nodeId\",\"type\":\"uint256\"},{\"indexed\":false,\"internalType\":\"enum IAKAP.NodeAttribute\",\"name\":\"attribute\",\"type\":\"uint8\"}],\"name\":\"AttributeChanged\",\"type\":\"event\"},{\"anonymous\":false,\"inputs\":[{\"indexed\":true,\"internalType\":\"address\",\"name\":\"sender\",\"type\":\"address\"},{\"indexed\":true,\"internalType\":\"uint256\",\"name\":\"nodeId\",\"type\":\"uint256\"},{\"indexed\":true,\"internalType\":\"uint256\",\"name\":\"parentId\",\"type\":\"uint256\"},{\"indexed\":false,\"internalType\":\"bytes\",\"name\":\"label\",\"type\":\"bytes\"},{\"indexed\":false,\"internalType\":\"enum IAKAP.ClaimCase\",\"name\":\"claimCase\",\"type\":\"uint8\"}],\"name\":\"Claim\",\"type\":\"event\"},{\"anonymous\":false,\"inputs\":[{\"indexed\":true,\"internalType\":\"address\",\"name\":\"from\",\"type\":\"address\"},{\"indexed\":true,\"internalType\":\"address\",\"name\":\"to\",\"type\":\"address\"},{\"indexed\":true,\"internalType\":\"uint256\",\"name\":\"tokenId\",\"type\":\"uint256\"}],\"name\":\"Transfer\",\"type\":\"event\"},{\"constant\":false,\"inputs\":[{\"internalType\":\"address\",\"name\":\"to\",\"type\":\"address\"},{\"internalType\":\"uint256\",\"name\":\"tokenId\",\"type\":\"uint256\"}],\"name\":\"approve\",\"outputs\":[],\"payable\":false,\"stateMutability\":\"nonpayable\",\"type\":\"function\"},{\"constant\":true,\"inputs\":[{\"internalType\":\"address\",\"name\":\"owner\",\"type\":\"address\"}],\"name\":\"balanceOf\",\"outputs\":[{\"internalType\":\"uint256\",\"name\":\"\",\"type\":\"uint256\"}],\"payable\":false,\"stateMutability\":\"view\",\"type\":\"function\"},{\"constant\":false,\"inputs\":[{\"internalType\":\"uint256\",\"name\":\"parentId\",\"type\":\"uint256\"},{\"internalType\":\"bytes\",\"name\":\"label\",\"type\":\"bytes\"}],\"name\":\"claim\",\"outputs\":[{\"internalType\":\"uint256\",\"name\":\"status\",\"type\":\"uint256\"}],\"payable\":false,\"stateMutability\":\"nonpayable\",\"type\":\"function\"},{\"constant\":true,\"inputs\":[{\"internalType\":\"uint256\",\"name\":\"nodeId\",\"type\":\"uint256\"}],\"name\":\"exists\",\"outputs\":[{\"internalType\":\"bool\",\"name\":\"\",\"type\":\"bool\"}],\"payable\":false,\"stateMutability\":\"view\",\"type\":\"function\"},{\"constant\":false,\"inputs\":[{\"internalType\":\"uint256\",\"name\":\"nodeId\",\"type\":\"uint256\"}],\"name\":\"expireNode\",\"outputs\":[],\"payable\":false,\"stateMutability\":\"nonpayable\",\"type\":\"function\"},{\"constant\":true,\"inputs\":[{\"internalType\":\"uint256\",\"name\":\"nodeId\",\"type\":\"uint256\"}],\"name\":\"expiryOf\",\"outputs\":[{\"internalType\":\"uint256\",\"name\":\"\",\"type\":\"uint256\"}],\"payable\":false,\"stateMutability\":\"view\",\"type\":\"function\"},{\"constant\":true,\"inputs\":[{\"internalType\":\"uint256\",\"name\":\"tokenId\",\"type\":\"uint256\"}],\"name\":\"getApproved\",\"outputs\":[{\"internalType\":\"address\",\"name\":\"\",\"type\":\"address\"}],\"payable\":false,\"stateMutability\":\"view\",\"type\":\"function\"},{\"constant\":true,\"inputs\":[{\"internalType\":\"uint256\",\"name\":\"parentId\",\"type\":\"uint256\"},{\"internalType\":\"bytes\",\"name\":\"label\",\"type\":\"bytes\"}],\"name\":\"hashOf\",\"outputs\":[{\"internalType\":\"uint256\",\"name\":\"id\",\"type\":\"uint256\"}],\"payable\":false,\"stateMutability\":\"pure\",\"type\":\"function\"},{\"constant\":true,\"inputs\":[{\"internalType\":\"address\",\"name\":\"owner\",\"type\":\"address\"},{\"internalType\":\"address\",\"name\":\"operator\",\"type\":\"address\"}],\"name\":\"isApprovedForAll\",\"outputs\":[{\"internalType\":\"bool\",\"name\":\"\",\"type\":\"bool\"}],\"payable\":false,\"stateMutability\":\"view\",\"type\":\"function\"},{\"constant\":true,\"inputs\":[{\"internalType\":\"uint256\",\"name\":\"nodeId\",\"type\":\"uint256\"}],\"name\":\"isApprovedOrOwner\",\"outputs\":[{\"internalType\":\"bool\",\"name\":\"\",\"type\":\"bool\"}],\"payable\":false,\"stateMutability\":\"view\",\"type\":\"function\"},{\"constant\":true,\"inputs\":[],\"name\":\"name\",\"outputs\":[{\"internalType\":\"string\",\"name\":\"\",\"type\":\"string\"}],\"payable\":false,\"stateMutability\":\"view\",\"type\":\"function\"},{\"constant\":true,\"inputs\":[{\"internalType\":\"uint256\",\"name\":\"nodeId\",\"type\":\"uint256\"}],\"name\":\"nodeBody\",\"outputs\":[{\"internalType\":\"bytes\",\"name\":\"\",\"type\":\"bytes\"}],\"payable\":false,\"stateMutability\":\"view\",\"type\":\"function\"},{\"constant\":true,\"inputs\":[{\"internalType\":\"uint256\",\"name\":\"tokenId\",\"type\":\"uint256\"}],\"name\":\"ownerOf\",\"outputs\":[{\"internalType\":\"address\",\"name\":\"\",\"type\":\"address\"}],\"payable\":false,\"stateMutability\":\"view\",\"type\":\"function\"},{\"constant\":true,\"inputs\":[{\"internalType\":\"uint256\",\"name\":\"nodeId\",\"type\":\"uint256\"}],\"name\":\"parentOf\",\"outputs\":[{\"internalType\":\"uint256\",\"name\":\"\",\"type\":\"uint256\"}],\"payable\":false,\"stateMutability\":\"view\",\"type\":\"function\"},{\"constant\":false,\"inputs\":[{\"internalType\":\"address\",\"name\":\"from\",\"type\":\"address\"},{\"internalType\":\"address\",\"name\":\"to\",\"type\":\"address\"},{\"internalType\":\"uint256\",\"name\":\"tokenId\",\"type\":\"uint256\"}],\"name\":\"safeTransferFrom\",\"outputs\":[],\"payable\":false,\"stateMutability\":\"nonpayable\",\"type\":\"function\"},{\"constant\":false,\"inputs\":[{\"internalType\":\"address\",\"name\":\"from\",\"type\":\"address\"},{\"internalType\":\"address\",\"name\":\"to\",\"type\":\"address\"},{\"internalType\":\"uint256\",\"name\":\"tokenId\",\"type\":\"uint256\"},{\"internalType\":\"bytes\",\"name\":\"_data\",\"type\":\"bytes\"}],\"name\":\"safeTransferFrom\",\"outputs\":[],\"payable\":false,\"stateMutability\":\"nonpayable\",\"type\":\"function\"},{\"constant\":true,\"inputs\":[{\"internalType\":\"uint256\",\"name\":\"nodeId\",\"type\":\"uint256\"}],\"name\":\"seeAddress\",\"outputs\":[{\"internalType\":\"address\",\"name\":\"\",\"type\":\"address\"}],\"payable\":false,\"stateMutability\":\"view\",\"type\":\"function\"},{\"constant\":true,\"inputs\":[{\"internalType\":\"uint256\",\"name\":\"nodeId\",\"type\":\"uint256\"}],\"name\":\"seeAlso\",\"outputs\":[{\"internalType\":\"uint256\",\"name\":\"\",\"type\":\"uint256\"}],\"payable\":false,\"stateMutability\":\"view\",\"type\":\"function\"},{\"constant\":false,\"inputs\":[{\"internalType\":\"address\",\"name\":\"to\",\"type\":\"address\"},{\"internalType\":\"bool\",\"name\":\"approved\",\"type\":\"bool\"}],\"name\":\"setApprovalForAll\",\"outputs\":[],\"payable\":false,\"stateMutability\":\"nonpayable\",\"type\":\"function\"},{\"constant\":false,\"inputs\":[{\"internalType\":\"uint256\",\"name\":\"nodeId\",\"type\":\"uint256\"},{\"internalType\":\"bytes\",\"name\":\"value\",\"type\":\"bytes\"}],\"name\":\"setNodeBody\",\"outputs\":[],\"payable\":false,\"stateMutability\":\"nonpayable\",\"type\":\"function\"},{\"constant\":false,\"inputs\":[{\"internalType\":\"uint256\",\"name\":\"nodeId\",\"type\":\"uint256\"},{\"internalType\":\"address\",\"name\":\"value\",\"type\":\"address\"}],\"name\":\"setSeeAddress\",\"outputs\":[],\"payable\":false,\"stateMutability\":\"nonpayable\",\"type\":\"function\"},{\"constant\":false,\"inputs\":[{\"internalType\":\"uint256\",\"name\":\"nodeId\",\"type\":\"uint256\"},{\"internalType\":\"uint256\",\"name\":\"value\",\"type\":\"uint256\"}],\"name\":\"setSeeAlso\",\"outputs\":[],\"payable\":false,\"stateMutability\":\"nonpayable\",\"type\":\"function\"},{\"constant\":false,\"inputs\":[{\"internalType\":\"uint256\",\"name\":\"nodeId\",\"type\":\"uint256\"},{\"internalType\":\"string\",\"name\":\"uri\",\"type\":\"string\"}],\"name\":\"setTokenURI\",\"outputs\":[],\"payable\":false,\"stateMutability\":\"nonpayable\",\"type\":\"function\"},{\"constant\":true,\"inputs\":[{\"internalType\":\"bytes4\",\"name\":\"interfaceId\",\"type\":\"bytes4\"}],\"name\":\"supportsInterface\",\"outputs\":[{\"internalType\":\"bool\",\"name\":\"\",\"type\":\"bool\"}],\"payable\":false,\"stateMutability\":\"view\",\"type\":\"function\"},{\"constant\":true,\"inputs\":[],\"name\":\"symbol\",\"outputs\":[{\"internalType\":\"string\",\"name\":\"\",\"type\":\"string\"}],\"payable\":false,\"stateMutability\":\"view\",\"type\":\"function\"},{\"constant\":true,\"inputs\":[{\"internalType\":\"uint256\",\"name\":\"index\",\"type\":\"uint256\"}],\"name\":\"tokenByIndex\",\"outputs\":[{\"internalType\":\"uint256\",\"name\":\"\",\"type\":\"uint256\"}],\"payable\":false,\"stateMutability\":\"view\",\"type\":\"function\"},{\"constant\":true,\"inputs\":[{\"internalType\":\"address\",\"name\":\"owner\",\"type\":\"address\"},{\"internalType\":\"uint256\",\"name\":\"index\",\"type\":\"uint256\"}],\"name\":\"tokenOfOwnerByIndex\",\"outputs\":[{\"internalType\":\"uint256\",\"name\":\"\",\"type\":\"uint256\"}],\"payable\":false,\"stateMutability\":\"view\",\"type\":\"function\"},{\"constant\":true,\"inputs\":[{\"internalType\":\"uint256\",\"name\":\"tokenId\",\"type\":\"uint256\"}],\"name\":\"tokenURI\",\"outputs\":[{\"internalType\":\"string\",\"name\":\"\",\"type\":\"string\"}],\"payable\":false,\"stateMutability\":\"view\",\"type\":\"function\"},{\"constant\":true,\"inputs\":[],\"name\":\"totalSupply\",\"outputs\":[{\"internalType\":\"uint256\",\"name\":\"\",\"type\":\"uint256\"}],\"payable\":false,\"stateMutability\":\"view\",\"type\":\"function\"},{\"constant\":false,\"inputs\":[{\"internalType\":\"address\",\"name\":\"from\",\"type\":\"address\"},{\"internalType\":\"address\",\"name\":\"to\",\"type\":\"address\"},{\"internalType\":\"uint256\",\"name\":\"tokenId\",\"type\":\"uint256\"}],\"name\":\"transferFrom\",\"outputs\":[],\"payable\":false,\"stateMutability\":\"nonpayable\",\"type\":\"function\"}],\"devdoc\":{\"methods\":{\"approve(address,uint256)\":{\"details\":\"Approves another address to transfer the given token ID The zero address indicates there is no approved address. There can only be one approved address per token at a given time. Can only be called by the token owner or an approved operator.\",\"params\":{\"to\":\"address to be approved for the given token ID\",\"tokenId\":\"uint256 ID of the token to be approved\"}},\"balanceOf(address)\":{\"details\":\"Gets the balance of the specified address.\",\"params\":{\"owner\":\"address to query the balance of\"},\"return\":\"uint256 representing the amount owned by the passed address\"},\"getApproved(uint256)\":{\"details\":\"Gets the approved address for a token ID, or zero if no address set Reverts if the token ID does not exist.\",\"params\":{\"tokenId\":\"uint256 ID of the token to query the approval of\"},\"return\":\"address currently approved for the given token ID\"},\"isApprovedForAll(address,address)\":{\"details\":\"Tells whether an operator is approved by a given owner.\",\"params\":{\"operator\":\"operator address which you want to query the approval of\",\"owner\":\"owner address which you want to query the approval of\"},\"return\":\"bool whether the given operator is approved by the given owner\"},\"name()\":{\"details\":\"Gets the token name.\",\"return\":\"string representing the token name\"},\"ownerOf(uint256)\":{\"details\":\"Gets the owner of the specified token ID.\",\"params\":{\"tokenId\":\"uint256 ID of the token to query the owner of\"},\"return\":\"address currently marked as the owner of the given token ID\"},\"safeTransferFrom(address,address,uint256)\":{\"details\":\"Safely transfers the ownership of a given token ID to another address If the target address is a contract, it must implement `onERC721Received`, which is called upon a safe transfer, and return the magic value `bytes4(keccak256(\\\"onERC721Received(address,address,uint256,bytes)\\\"))`; otherwise, the transfer is reverted. Requires the msg.sender to be the owner, approved, or operator\",\"params\":{\"from\":\"current owner of the token\",\"to\":\"address to receive the ownership of the given token ID\",\"tokenId\":\"uint256 ID of the token to be transferred\"}},\"safeTransferFrom(address,address,uint256,bytes)\":{\"details\":\"Safely transfers the ownership of a given token ID to another address If the target address is a contract, it must implement `onERC721Received`, which is called upon a safe transfer, and return the magic value `bytes4(keccak256(\\\"onERC721Received(address,address,uint256,bytes)\\\"))`; otherwise, the transfer is reverted. Requires the msg.sender to be the owner, approved, or operator\",\"params\":{\"_data\":\"bytes data to send along with a safe transfer check\",\"from\":\"current owner of the token\",\"to\":\"address to receive the ownership of the given token ID\",\"tokenId\":\"uint256 ID of the token to be transferred\"}},\"setApprovalForAll(address,bool)\":{\"details\":\"Sets or unsets the approval of a given operator An operator is allowed to transfer all tokens of the sender on their behalf.\",\"params\":{\"approved\":\"representing the status of the approval to be set\",\"to\":\"operator address to set the approval\"}},\"supportsInterface(bytes4)\":{\"details\":\"See `IERC165.supportsInterface`.     * Time complexity O(1), guaranteed to always use less than 30 000 gas.\"},\"symbol()\":{\"details\":\"Gets the token symbol.\",\"return\":\"string representing the token symbol\"},\"tokenByIndex(uint256)\":{\"details\":\"Gets the token ID at a given index of all the tokens in this contract Reverts if the index is greater or equal to the total number of tokens.\",\"params\":{\"index\":\"uint256 representing the index to be accessed of the tokens list\"},\"return\":\"uint256 token ID at the given index of the tokens list\"},\"tokenOfOwnerByIndex(address,uint256)\":{\"details\":\"Gets the token ID at a given index of the tokens list of the requested owner.\",\"params\":{\"index\":\"uint256 representing the index to be accessed of the requested tokens list\",\"owner\":\"address owning the tokens list to be accessed\"},\"return\":\"uint256 token ID at the given index of the tokens list owned by the requested address\"},\"tokenURI(uint256)\":{\"details\":\"Returns an URI for a given token ID. Throws if the token ID does not exist. May return an empty string.\",\"params\":{\"tokenId\":\"uint256 ID of the token to query\"}},\"totalSupply()\":{\"details\":\"Gets the total amount of tokens stored by the contract.\",\"return\":\"uint256 representing the total amount of tokens\"},\"transferFrom(address,address,uint256)\":{\"details\":\"Transfers the ownership of a given token ID to another address. Usage of this method is discouraged, use `safeTransferFrom` whenever possible. Requires the msg.sender to be the owner, approved, or operator.\",\"params\":{\"from\":\"current owner of the token\",\"to\":\"address to receive the ownership of the given token ID\",\"tokenId\":\"uint256 ID of the token to be transferred\"}}}},\"userdoc\":{\"methods\":{}}},\"settings\":{\"compilationTarget\":{\"/private/tmp/eth/akap/contracts/AKAF.sol\":\"AKAF\"},\"evmVersion\":\"istanbul\",\"libraries\":{},\"optimizer\":{\"enabled\":true,\"runs\":200},\"remappings\":[]},\"sources\":{\"/private/tmp/eth/akap/contracts/AKAF.sol\":{\"keccak256\":\"0xf2978e2729083e110ff4c9ec5bb29d7f0c45b1ce55976b85f313fbf8a50b1109\",\"urls\":[\"bzz-raw://846fe8dcf2e6507135b593c2bebd704e94fe1c111365f870e63475d7ac85952e\",\"dweb:/ipfs/QmXMLimLgj7ou43rsQAYEzw69KZkE2gHRLybfhk5qX3Kc6\"]},\"/private/tmp/eth/akap/contracts/IAKAP.sol\":{\"keccak256\":\"0x2163f1519406e467ca39601ce7dfed73d104b3da8bdd0146bd6ca2d14388276a\",\"urls\":[\"bzz-raw://2e4395653541d8e0a6a5bad617a3b7af3efcd8fdea988edf4c7644aabbb8e6b0\",\"dweb:/ipfs/QmPDi6uqVTLCp1v725r2qfC5GNsiGCwbMCpZWSjc34u1Ek\"]},\"@openzeppelin/contracts/drafts/Counters.sol\":{\"keccak256\":\"0x5eb69360d3441ab2ee799bd7c007cccbffb0896f12b2dfe1456193e2aa180a11\",\"urls\":[\"bzz-raw://072e8b5a1b5acfc2acba9b6fb87d1dc57065aad44572617ad46b014074969eb3\",\"dweb:/ipfs/QmVTDHUriaxBJqiWCWgWC8vYaYYfXSz883LsowzTx1DcpK\"]},\"@openzeppelin/contracts/introspection/ERC165.sol\":{\"keccak256\":\"0xac2eacd7e7762e275442f28f21d821544df5aae2ed7698af13be8c41b7005e2e\",\"urls\":[\"bzz-raw://8bdbefb642e7b08535c66bbf074e576cfef2300cdf910c1e0b211f6393833a28\",\"dweb:/ipfs/QmQhfx2Ufr8a2gFXm3KogL66xGgAuAWMwcamkWFKGG6Vya\"]},\"@openzeppelin/contracts/introspection/IERC165.sol\":{\"keccak256\":\"0x661553e43d7c4fbb2de504e5999fd5c104d367488350ed5bf023031bd1ba5ac5\",\"urls\":[\"bzz-raw://b40442c5b350b57b88a081a1eacd2bac962d4ecc1f029f5447a18986f08f6f14\",\"dweb:/ipfs/QmV7wjtRf11ibUHh4g8JjuhMpy68pPhV95L2y46UBoRfsZ\"]},\"@openzeppelin/contracts/math/SafeMath.sol\":{\"keccak256\":\"0xd1804d04fb39689453f673601429a99a0c68c422a981fc338773df9a59180fe9\",\"urls\":[\"bzz-raw://1b9307920e0378d58c6677f8952ad090a9ecb30e878835e301a0d18386a870c1\",\"dweb:/ipfs/QmYYixTDVF4FXqFpYzEcufAwEY9BFBJ33Ew9ncsGvD7btC\"]},\"@openzeppelin/contracts/token/ERC721/ERC721.sol\":{\"keccak256\":\"0xf151df411bbf4eaef1fc8e8480cd10c2cd985f1a36517e63981517610213efc1\",\"urls\":[\"bzz-raw://2a277b3cc3a1a03af5c039bc75cd16bb2d23b529cb2564cc0bea1b1e0eb4dd68\",\"dweb:/ipfs/QmNRxggY8qmjjuLnxggRqE8uBueuCktLwi9YYHagWoaEJ8\"]},\"@openzeppelin/contracts/token/ERC721/ERC721Enumerable.sol\":{\"keccak256\":\"0xb42cb5a7471d98114af8f7050e7d08dfd543f432713a8aee72a45ce9485f5bed\",\"urls\":[\"bzz-raw://324b8d35f37d91fd863130a6e4b83d55b8b95264af011a008ec03e084ac91b75\",\"dweb:/ipfs/QmWY61QSSJPkgDb2WZR1unTfuSrd5jBp2tC7RrCrQxC9CL\"]},\"@openzeppelin/contracts/token/ERC721/ERC721Full.sol\":{\"keccak256\":\"0x908d0d6fd8d30cffb1fe9fce1f7db6802cb885fbe88d2f170539e8dcc6afa946\",\"urls\":[\"bzz-raw://ed5f7883e2a50b3efeaae764c77152bef9d3d9965832ef095c94e79c2e887257\",\"dweb:/ipfs/QmaLRQ1ziLAo18gvM2EbKhvHC3ys4333mTxCFfoEJ8AodY\"]},\"@openzeppelin/contracts/token/ERC721/ERC721Metadata.sol\":{\"keccak256\":\"0xe5e28b1a405164faa98f8ecd8ed2b00907b89e3d58b2b2bb8ac8b12bc5714489\",\"urls\":[\"bzz-raw://0d5d3f0caa7e7ec91f8a2894e1a6a3513a0c79aa91a498ebf8fdbdd07c12286f\",\"dweb:/ipfs/QmP7r4jQMRxXb5JHy5V9bgMz5FmTezcSDd7ivyzJN88pTR\"]},\"@openzeppelin/contracts/token/ERC721/IERC721.sol\":{\"keccak256\":\"0xce48937a8007c580b8e2e35705738c922dd17540de89ebee6df06d2917a3f9fc\",\"urls\":[\"bzz-raw://1d117265103ee3efcd454d3aafb3e79a115f9bca6dec78a1229558eb30d14d05\",\"dweb:/ipfs/QmTm5Z1c7zzPiG3Cfj1eBMB23AeiEFGgvmTFQVaeEWXVCw\"]},\"@openzeppelin/contracts/token/ERC721/IERC721Enumerable.sol\":{\"keccak256\":\"0x5c573acd6c7b98d71f3c1c44d63dc17400b0fd7b26a52c9fded43b8b533dc4ec\",\"urls\":[\"bzz-raw://e23af54444d2dbfae58895339eb7b189e1ba5d0b7abde63716e7ef7da23b2fde\",\"dweb:/ipfs/QmZva7dE1SMd1yyizzc6ivSoBXXwpNveLV7iFNATNpq68Y\"]},\"@openzeppelin/contracts/token/ERC721/IERC721Metadata.sol\":{\"keccak256\":\"0x2b2b99dc7fe8fcd1f9427d00822b99cbc683dc21f5dd7532bd7e2281fd2c2ca2\",\"urls\":[\"bzz-raw://a8024c00e34efaf328f9592e76823c79f25fa0f6006bdf4a1e7fea204afd4773\",\"dweb:/ipfs/QmZns9jTr7843njq3J2iL2LLoWXK5mdzN1bDGd9GL3ahhD\"]},\"@openzeppelin/contracts/token/ERC721/IERC721Receiver.sol\":{\"keccak256\":\"0xadbfb7028fb0f851dc848a48b9e54e7c89ffd2c2edc12fa4ba9bb383dfaa83d9\",\"urls\":[\"bzz-raw://90dceab42713246639100b87d6650037d68e4a2ab2dd4b5768c3ed35d6b3a4a0\",\"dweb:/ipfs/QmQ42UW5nchMoYP9bU9F1AJga5chG8j92fCPkURpiDKsCu\"]},\"@openzeppelin/contracts/utils/Address.sol\":{\"keccak256\":\"0xf3358e5819ca73357abd6c90bdfffd0474af54364897f6b3e3234c4b71fbe9a1\",\"urls\":[\"bzz-raw://75ae8d04454d1511a2ed986cc8585736f05c5c25280683b3d24712a9f414a4bf\",\"dweb:/ipfs/Qmb3kNCoBUZdah1AgBBD4zMk898j5Qw8ahT1w5cCMYp5Y3\"]}},\"version\":1}",
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+  "source": "// Copyright (C) 2019  Christian Felde\n// Copyright (C) 2019  Mohamed Elshami\n\n// Licensed under the Apache License, Version 2.0 (the \"License\");\n// you may not use this file except in compliance with the License.\n// You may obtain a copy of the License at\n\n// http://www.apache.org/licenses/LICENSE-2.0\n\n// Unless required by applicable law or agreed to in writing, software\n// distributed under the License is distributed on an \"AS IS\" BASIS,\n// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.\n// See the License for the specific language governing permissions and\n// limitations under the License.\n\npragma solidity ^0.5.0;\n\nimport \"./IAKAP.sol\";\nimport \"@openzeppelin/contracts/token/ERC721/ERC721Full.sol\";\n\ncontract AKAF is IAKAP, ERC721Full {\n    struct Node {\n        uint parentId;\n        uint expiry;\n        uint seeAlso;\n        address seeAddress;\n        bytes nodeBody;\n    }\n\n    mapping(uint => Node) private nodes;\n\n    constructor() ERC721Full(\"AKA Forever Registry\", \"AKAF\") public {\n        // Create the special root node and assigned msg.sender as owner\n        uint nodeId = 0;\n        _mint(_msgSender(), nodeId);\n        nodes[nodeId].expiry = uint(-1);\n        emit Claim(_msgSender(), nodeId, nodeId, \"\", ClaimCase.NEW);\n    }\n\n    function _msgSender() internal view returns (address payable) {\n        return msg.sender;\n    }\n\n    modifier onlyExisting(uint nodeId) {\n        require(_exists(nodeId) && nodeId > 0, \"AKAP: operator query for nonexistent node\");\n\n        _;\n    }\n\n    modifier onlyApproved(uint nodeId) {\n        require(_exists(nodeId) && _isApprovedOrOwner(_msgSender(), nodeId) && nodeId > 0, \"AKAP: set value caller is not owner nor approved\");\n\n        _;\n    }\n\n    function hashOf(uint parentId, bytes memory label) public pure returns (uint id) {\n        require(label.length >= 1 && label.length <= 32, \"AKAP: Invalid label length\");\n\n        bytes32 labelHash = keccak256(label);\n        bytes32 nodeId = keccak256(abi.encode(parentId, labelHash));\n\n        require(nodeId > 0, \"AKAP: Invalid node hash\");\n\n        return uint(nodeId);\n    }\n\n    function claim(uint parentId, bytes calldata label) external returns (uint status) {\n        // Claim logic is as found in AKAP, but with an expiry timestamp set to \"forever\".\n        // Owners of a node on an AKAF contract does hence not need to reclaim their nodes.\n        // Node owners may still explicitly expire a node if they wish.\n\n        // Get hash/id of the node caller is claiming\n        uint nodeId = hashOf(parentId, label);\n\n        bool isParentOwner = _isApprovedOrOwner(_msgSender(), parentId);\n        bool nodeExists = _exists(nodeId);\n\n        if (nodeExists && _isApprovedOrOwner(_msgSender(), nodeId)) {\n            require(parentId == nodes[nodeId].parentId, \"AKAP: Invalid parent hash\");\n\n            // Caller is current owner/approved, extend lease..\n            nodes[nodeId].expiry = uint(-1);\n            emit Claim(_msgSender(), nodeId, parentId, label, ClaimCase.RECLAIM);\n\n            return 1;\n        } else if (!nodeExists && isParentOwner) {\n            // Node does not exist, allocate to caller..\n            _mint(_msgSender(), nodeId);\n            nodes[nodeId].parentId = parentId;\n            nodes[nodeId].expiry = uint(-1);\n            emit Claim(_msgSender(), nodeId, parentId, label, ClaimCase.NEW);\n\n            return 2;\n        } else if (nodeExists && nodes[nodeId].expiry <= now && isParentOwner) {\n            require(parentId == nodes[nodeId].parentId, \"AKAP: Invalid parent hash\");\n\n            // Node exists and is expired, allocate to caller and extend lease..\n            _transferFrom(ownerOf(nodeId), _msgSender(), nodeId);\n            nodes[nodeId].expiry = uint(-1);\n            emit Claim(_msgSender(), nodeId, parentId, label, ClaimCase.TRANSFER);\n\n            return 3;\n        }\n\n        // No action\n        return 0;\n    }\n\n    function exists(uint nodeId) external view returns (bool) {\n        return _exists(nodeId) && nodeId > 0;\n    }\n\n    function isApprovedOrOwner(uint nodeId) external view returns (bool) {\n        return _isApprovedOrOwner(_msgSender(), nodeId);\n    }\n\n    function parentOf(uint nodeId) external view onlyExisting(nodeId) returns (uint) {\n        return nodes[nodeId].parentId;\n    }\n\n    function expiryOf(uint nodeId) external view onlyExisting(nodeId) returns (uint) {\n        return nodes[nodeId].expiry;\n    }\n\n    function seeAlso(uint nodeId) external view onlyExisting(nodeId) returns (uint) {\n        return nodes[nodeId].seeAlso;\n    }\n\n    function seeAddress(uint nodeId) external view onlyExisting(nodeId) returns (address) {\n        return nodes[nodeId].seeAddress;\n    }\n\n    function nodeBody(uint nodeId) external view onlyExisting(nodeId) returns (bytes memory) {\n        return nodes[nodeId].nodeBody;\n    }\n\n    function expireNode(uint nodeId) external onlyApproved(nodeId) {\n        nodes[nodeId].expiry = now;\n        emit AttributeChanged(_msgSender(), nodeId, NodeAttribute.EXPIRY);\n    }\n\n    function setSeeAlso(uint nodeId, uint value) external onlyApproved(nodeId) {\n        nodes[nodeId].seeAlso = value;\n        emit AttributeChanged(_msgSender(), nodeId, NodeAttribute.SEE_ALSO);\n    }\n\n    function setSeeAddress(uint nodeId, address value) external onlyApproved(nodeId) {\n        nodes[nodeId].seeAddress = value;\n        emit AttributeChanged(_msgSender(), nodeId, NodeAttribute.SEE_ADDRESS);\n    }\n\n    function setNodeBody(uint nodeId, bytes calldata value) external onlyApproved(nodeId) {\n        nodes[nodeId].nodeBody = value;\n        emit AttributeChanged(_msgSender(), nodeId, NodeAttribute.NODE_BODY);\n    }\n\n    function setTokenURI(uint nodeId, string calldata uri) external onlyApproved(nodeId) {\n        _setTokenURI(nodeId, uri);\n        emit AttributeChanged(_msgSender(), nodeId, NodeAttribute.TOKEN_URI);\n    }\n}",
   "sourcePath": "/private/tmp/eth/akap/contracts/AKAF.sol",
   "ast": {
     "absolutePath": "/private/tmp/eth/akap/contracts/AKAF.sol",
     "exportedSymbols": {
       "AKAF": [
-        1335
+        564
       ]
     },
-    "id": 1336,
+    "id": 565,
     "nodeType": "SourceUnit",
     "nodes": [
       {
-        "id": 784,
+        "id": 1,
         "literals": [
           "solidity",
           "^",
@@ -808,27 +808,27 @@
           ".0"
         ],
         "nodeType": "PragmaDirective",
-        "src": "627:23:2"
+        "src": "627:23:0"
       },
       {
         "absolutePath": "/private/tmp/eth/akap/contracts/IAKAP.sol",
         "file": "./IAKAP.sol",
-        "id": 785,
+        "id": 2,
         "nodeType": "ImportDirective",
-        "scope": 1336,
-        "sourceUnit": 2090,
-        "src": "652:21:2",
+        "scope": 565,
+        "sourceUnit": 1319,
+        "src": "652:21:0",
         "symbolAliases": [],
         "unitAlias": ""
       },
       {
         "absolutePath": "@openzeppelin/contracts/token/ERC721/ERC721Full.sol",
         "file": "@openzeppelin/contracts/token/ERC721/ERC721Full.sol",
-        "id": 786,
+        "id": 3,
         "nodeType": "ImportDirective",
-        "scope": 1336,
-        "sourceUnit": 3317,
-        "src": "674:61:2",
+        "scope": 565,
+        "sourceUnit": 2546,
+        "src": "674:61:0",
         "symbolAliases": [],
         "unitAlias": ""
       },
@@ -838,82 +838,82 @@
             "arguments": null,
             "baseName": {
               "contractScope": null,
-              "id": 787,
+              "id": 4,
               "name": "IAKAP",
               "nodeType": "UserDefinedTypeName",
-              "referencedDeclaration": 2089,
-              "src": "754:5:2",
+              "referencedDeclaration": 1318,
+              "src": "754:5:0",
               "typeDescriptions": {
-                "typeIdentifier": "t_contract$_IAKAP_$2089",
+                "typeIdentifier": "t_contract$_IAKAP_$1318",
                 "typeString": "contract IAKAP"
               }
             },
-            "id": 788,
+            "id": 5,
             "nodeType": "InheritanceSpecifier",
-            "src": "754:5:2"
+            "src": "754:5:0"
           },
           {
             "arguments": null,
             "baseName": {
               "contractScope": null,
-              "id": 789,
+              "id": 6,
               "name": "ERC721Full",
               "nodeType": "UserDefinedTypeName",
-              "referencedDeclaration": 3316,
-              "src": "761:10:2",
+              "referencedDeclaration": 2545,
+              "src": "761:10:0",
               "typeDescriptions": {
-                "typeIdentifier": "t_contract$_ERC721Full_$3316",
+                "typeIdentifier": "t_contract$_ERC721Full_$2545",
                 "typeString": "contract ERC721Full"
               }
             },
-            "id": 790,
+            "id": 7,
             "nodeType": "InheritanceSpecifier",
-            "src": "761:10:2"
+            "src": "761:10:0"
           }
         ],
         "contractDependencies": [
-          2089,
-          2247,
-          2257,
-          2955,
-          3292,
-          3316,
-          3445,
-          3548,
-          3575,
-          3598
+          1318,
+          1476,
+          1486,
+          2184,
+          2521,
+          2545,
+          2674,
+          2777,
+          2804,
+          2827
         ],
         "contractKind": "contract",
         "documentation": null,
         "fullyImplemented": true,
-        "id": 1335,
+        "id": 564,
         "linearizedBaseContracts": [
-          1335,
-          3316,
-          3445,
-          3598,
-          3292,
-          3575,
-          2955,
-          3548,
-          2247,
-          2257,
-          2089
+          564,
+          2545,
+          2674,
+          2827,
+          2521,
+          2804,
+          2184,
+          2777,
+          1476,
+          1486,
+          1318
         ],
         "name": "AKAF",
         "nodeType": "ContractDefinition",
         "nodes": [
           {
             "canonicalName": "AKAF.Node",
-            "id": 801,
+            "id": 18,
             "members": [
               {
                 "constant": false,
-                "id": 792,
+                "id": 9,
                 "name": "parentId",
                 "nodeType": "VariableDeclaration",
-                "scope": 801,
-                "src": "800:13:2",
+                "scope": 18,
+                "src": "800:13:0",
                 "stateVariable": false,
                 "storageLocation": "default",
                 "typeDescriptions": {
@@ -921,10 +921,10 @@
                   "typeString": "uint256"
                 },
                 "typeName": {
-                  "id": 791,
+                  "id": 8,
                   "name": "uint",
                   "nodeType": "ElementaryTypeName",
-                  "src": "800:4:2",
+                  "src": "800:4:0",
                   "typeDescriptions": {
                     "typeIdentifier": "t_uint256",
                     "typeString": "uint256"
@@ -935,11 +935,11 @@
               },
               {
                 "constant": false,
-                "id": 794,
+                "id": 11,
                 "name": "expiry",
                 "nodeType": "VariableDeclaration",
-                "scope": 801,
-                "src": "823:11:2",
+                "scope": 18,
+                "src": "823:11:0",
                 "stateVariable": false,
                 "storageLocation": "default",
                 "typeDescriptions": {
@@ -947,10 +947,10 @@
                   "typeString": "uint256"
                 },
                 "typeName": {
-                  "id": 793,
+                  "id": 10,
                   "name": "uint",
                   "nodeType": "ElementaryTypeName",
-                  "src": "823:4:2",
+                  "src": "823:4:0",
                   "typeDescriptions": {
                     "typeIdentifier": "t_uint256",
                     "typeString": "uint256"
@@ -961,11 +961,11 @@
               },
               {
                 "constant": false,
-                "id": 796,
+                "id": 13,
                 "name": "seeAlso",
                 "nodeType": "VariableDeclaration",
-                "scope": 801,
-                "src": "844:12:2",
+                "scope": 18,
+                "src": "844:12:0",
                 "stateVariable": false,
                 "storageLocation": "default",
                 "typeDescriptions": {
@@ -973,10 +973,10 @@
                   "typeString": "uint256"
                 },
                 "typeName": {
-                  "id": 795,
+                  "id": 12,
                   "name": "uint",
                   "nodeType": "ElementaryTypeName",
-                  "src": "844:4:2",
+                  "src": "844:4:0",
                   "typeDescriptions": {
                     "typeIdentifier": "t_uint256",
                     "typeString": "uint256"
@@ -987,11 +987,11 @@
               },
               {
                 "constant": false,
-                "id": 798,
+                "id": 15,
                 "name": "seeAddress",
                 "nodeType": "VariableDeclaration",
-                "scope": 801,
-                "src": "866:18:2",
+                "scope": 18,
+                "src": "866:18:0",
                 "stateVariable": false,
                 "storageLocation": "default",
                 "typeDescriptions": {
@@ -999,10 +999,10 @@
                   "typeString": "address"
                 },
                 "typeName": {
-                  "id": 797,
+                  "id": 14,
                   "name": "address",
                   "nodeType": "ElementaryTypeName",
-                  "src": "866:7:2",
+                  "src": "866:7:0",
                   "stateMutability": "nonpayable",
                   "typeDescriptions": {
                     "typeIdentifier": "t_address",
@@ -1014,11 +1014,11 @@
               },
               {
                 "constant": false,
-                "id": 800,
+                "id": 17,
                 "name": "nodeBody",
                 "nodeType": "VariableDeclaration",
-                "scope": 801,
-                "src": "894:14:2",
+                "scope": 18,
+                "src": "894:14:0",
                 "stateVariable": false,
                 "storageLocation": "default",
                 "typeDescriptions": {
@@ -1026,10 +1026,10 @@
                   "typeString": "bytes"
                 },
                 "typeName": {
-                  "id": 799,
+                  "id": 16,
                   "name": "bytes",
                   "nodeType": "ElementaryTypeName",
-                  "src": "894:5:2",
+                  "src": "894:5:0",
                   "typeDescriptions": {
                     "typeIdentifier": "t_bytes_storage_ptr",
                     "typeString": "bytes"
@@ -1041,50 +1041,50 @@
             ],
             "name": "Node",
             "nodeType": "StructDefinition",
-            "scope": 1335,
-            "src": "778:137:2",
+            "scope": 564,
+            "src": "778:137:0",
             "visibility": "public"
           },
           {
             "constant": false,
-            "id": 805,
+            "id": 22,
             "name": "nodes",
             "nodeType": "VariableDeclaration",
-            "scope": 1335,
-            "src": "921:35:2",
+            "scope": 564,
+            "src": "921:35:0",
             "stateVariable": true,
             "storageLocation": "default",
             "typeDescriptions": {
-              "typeIdentifier": "t_mapping$_t_uint256_$_t_struct$_Node_$801_storage_$",
+              "typeIdentifier": "t_mapping$_t_uint256_$_t_struct$_Node_$18_storage_$",
               "typeString": "mapping(uint256 => struct AKAF.Node)"
             },
             "typeName": {
-              "id": 804,
+              "id": 21,
               "keyType": {
-                "id": 802,
+                "id": 19,
                 "name": "uint",
                 "nodeType": "ElementaryTypeName",
-                "src": "929:4:2",
+                "src": "929:4:0",
                 "typeDescriptions": {
                   "typeIdentifier": "t_uint256",
                   "typeString": "uint256"
                 }
               },
               "nodeType": "Mapping",
-              "src": "921:21:2",
+              "src": "921:21:0",
               "typeDescriptions": {
-                "typeIdentifier": "t_mapping$_t_uint256_$_t_struct$_Node_$801_storage_$",
+                "typeIdentifier": "t_mapping$_t_uint256_$_t_struct$_Node_$18_storage_$",
                 "typeString": "mapping(uint256 => struct AKAF.Node)"
               },
               "valueType": {
                 "contractScope": null,
-                "id": 803,
+                "id": 20,
                 "name": "Node",
                 "nodeType": "UserDefinedTypeName",
-                "referencedDeclaration": 801,
-                "src": "937:4:2",
+                "referencedDeclaration": 18,
+                "src": "937:4:0",
                 "typeDescriptions": {
-                  "typeIdentifier": "t_struct$_Node_$801_storage_ptr",
+                  "typeIdentifier": "t_struct$_Node_$18_storage_ptr",
                   "typeString": "struct AKAF.Node"
                 }
               }
@@ -1094,22 +1094,22 @@
           },
           {
             "body": {
-              "id": 842,
+              "id": 59,
               "nodeType": "Block",
-              "src": "1027:252:2",
+              "src": "1027:252:0",
               "statements": [
                 {
                   "assignments": [
-                    813
+                    30
                   ],
                   "declarations": [
                     {
                       "constant": false,
-                      "id": 813,
+                      "id": 30,
                       "name": "nodeId",
                       "nodeType": "VariableDeclaration",
-                      "scope": 842,
-                      "src": "1110:11:2",
+                      "scope": 59,
+                      "src": "1110:11:0",
                       "stateVariable": false,
                       "storageLocation": "default",
                       "typeDescriptions": {
@@ -1117,10 +1117,10 @@
                         "typeString": "uint256"
                       },
                       "typeName": {
-                        "id": 812,
+                        "id": 29,
                         "name": "uint",
                         "nodeType": "ElementaryTypeName",
-                        "src": "1110:4:2",
+                        "src": "1110:4:0",
                         "typeDescriptions": {
                           "typeIdentifier": "t_uint256",
                           "typeString": "uint256"
@@ -1130,18 +1130,18 @@
                       "visibility": "internal"
                     }
                   ],
-                  "id": 815,
+                  "id": 32,
                   "initialValue": {
                     "argumentTypes": null,
                     "hexValue": "30",
-                    "id": 814,
+                    "id": 31,
                     "isConstant": false,
                     "isLValue": false,
                     "isPure": true,
                     "kind": "number",
                     "lValueRequested": false,
                     "nodeType": "Literal",
-                    "src": "1124:1:2",
+                    "src": "1124:1:0",
                     "subdenomination": null,
                     "typeDescriptions": {
                       "typeIdentifier": "t_rational_0_by_1",
@@ -1150,7 +1150,7 @@
                     "value": "0"
                   },
                   "nodeType": "VariableDeclarationStatement",
-                  "src": "1110:15:2"
+                  "src": "1110:15:0"
                 },
                 {
                   "expression": {
@@ -1161,18 +1161,18 @@
                         "arguments": [],
                         "expression": {
                           "argumentTypes": [],
-                          "id": 817,
+                          "id": 34,
                           "name": "_msgSender",
                           "nodeType": "Identifier",
                           "overloadedDeclarations": [],
-                          "referencedDeclaration": 852,
-                          "src": "1141:10:2",
+                          "referencedDeclaration": 69,
+                          "src": "1141:10:0",
                           "typeDescriptions": {
                             "typeIdentifier": "t_function_internal_view$__$returns$_t_address_payable_$",
                             "typeString": "function () view returns (address payable)"
                           }
                         },
-                        "id": 818,
+                        "id": 35,
                         "isConstant": false,
                         "isLValue": false,
                         "isPure": false,
@@ -1180,7 +1180,7 @@
                         "lValueRequested": false,
                         "names": [],
                         "nodeType": "FunctionCall",
-                        "src": "1141:12:2",
+                        "src": "1141:12:0",
                         "typeDescriptions": {
                           "typeIdentifier": "t_address_payable",
                           "typeString": "address payable"
@@ -1188,12 +1188,12 @@
                       },
                       {
                         "argumentTypes": null,
-                        "id": 819,
+                        "id": 36,
                         "name": "nodeId",
                         "nodeType": "Identifier",
                         "overloadedDeclarations": [],
-                        "referencedDeclaration": 813,
-                        "src": "1155:6:2",
+                        "referencedDeclaration": 30,
+                        "src": "1155:6:0",
                         "typeDescriptions": {
                           "typeIdentifier": "t_uint256",
                           "typeString": "uint256"
@@ -1211,20 +1211,20 @@
                           "typeString": "uint256"
                         }
                       ],
-                      "id": 816,
+                      "id": 33,
                       "name": "_mint",
                       "nodeType": "Identifier",
                       "overloadedDeclarations": [
-                        3099
+                        2328
                       ],
-                      "referencedDeclaration": 3099,
-                      "src": "1135:5:2",
+                      "referencedDeclaration": 2328,
+                      "src": "1135:5:0",
                       "typeDescriptions": {
                         "typeIdentifier": "t_function_internal_nonpayable$_t_address_$_t_uint256_$returns$__$",
                         "typeString": "function (address,uint256)"
                       }
                     },
-                    "id": 820,
+                    "id": 37,
                     "isConstant": false,
                     "isLValue": false,
                     "isPure": false,
@@ -1232,20 +1232,20 @@
                     "lValueRequested": false,
                     "names": [],
                     "nodeType": "FunctionCall",
-                    "src": "1135:27:2",
+                    "src": "1135:27:0",
                     "typeDescriptions": {
                       "typeIdentifier": "t_tuple$__$",
                       "typeString": "tuple()"
                     }
                   },
-                  "id": 821,
+                  "id": 38,
                   "nodeType": "ExpressionStatement",
-                  "src": "1135:27:2"
+                  "src": "1135:27:0"
                 },
                 {
                   "expression": {
                     "argumentTypes": null,
-                    "id": 830,
+                    "id": 47,
                     "isConstant": false,
                     "isLValue": false,
                     "isPure": false,
@@ -1256,26 +1256,26 @@
                         "argumentTypes": null,
                         "baseExpression": {
                           "argumentTypes": null,
-                          "id": 822,
+                          "id": 39,
                           "name": "nodes",
                           "nodeType": "Identifier",
                           "overloadedDeclarations": [],
-                          "referencedDeclaration": 805,
-                          "src": "1172:5:2",
+                          "referencedDeclaration": 22,
+                          "src": "1172:5:0",
                           "typeDescriptions": {
-                            "typeIdentifier": "t_mapping$_t_uint256_$_t_struct$_Node_$801_storage_$",
+                            "typeIdentifier": "t_mapping$_t_uint256_$_t_struct$_Node_$18_storage_$",
                             "typeString": "mapping(uint256 => struct AKAF.Node storage ref)"
                           }
                         },
-                        "id": 824,
+                        "id": 41,
                         "indexExpression": {
                           "argumentTypes": null,
-                          "id": 823,
+                          "id": 40,
                           "name": "nodeId",
                           "nodeType": "Identifier",
                           "overloadedDeclarations": [],
-                          "referencedDeclaration": 813,
-                          "src": "1178:6:2",
+                          "referencedDeclaration": 30,
+                          "src": "1178:6:0",
                           "typeDescriptions": {
                             "typeIdentifier": "t_uint256",
                             "typeString": "uint256"
@@ -1286,21 +1286,21 @@
                         "isPure": false,
                         "lValueRequested": false,
                         "nodeType": "IndexAccess",
-                        "src": "1172:13:2",
+                        "src": "1172:13:0",
                         "typeDescriptions": {
-                          "typeIdentifier": "t_struct$_Node_$801_storage",
+                          "typeIdentifier": "t_struct$_Node_$18_storage",
                           "typeString": "struct AKAF.Node storage ref"
                         }
                       },
-                      "id": 825,
+                      "id": 42,
                       "isConstant": false,
                       "isLValue": true,
                       "isPure": false,
                       "lValueRequested": true,
                       "memberName": "expiry",
                       "nodeType": "MemberAccess",
-                      "referencedDeclaration": 794,
-                      "src": "1172:20:2",
+                      "referencedDeclaration": 11,
+                      "src": "1172:20:0",
                       "typeDescriptions": {
                         "typeIdentifier": "t_uint256",
                         "typeString": "uint256"
@@ -1313,7 +1313,7 @@
                       "arguments": [
                         {
                           "argumentTypes": null,
-                          "id": 828,
+                          "id": 45,
                           "isConstant": false,
                           "isLValue": false,
                           "isPure": true,
@@ -1321,18 +1321,18 @@
                           "nodeType": "UnaryOperation",
                           "operator": "-",
                           "prefix": true,
-                          "src": "1200:2:2",
+                          "src": "1200:2:0",
                           "subExpression": {
                             "argumentTypes": null,
                             "hexValue": "31",
-                            "id": 827,
+                            "id": 44,
                             "isConstant": false,
                             "isLValue": false,
                             "isPure": true,
                             "kind": "number",
                             "lValueRequested": false,
                             "nodeType": "Literal",
-                            "src": "1201:1:2",
+                            "src": "1201:1:0",
                             "subdenomination": null,
                             "typeDescriptions": {
                               "typeIdentifier": "t_rational_1_by_1",
@@ -1353,20 +1353,20 @@
                             "typeString": "int_const -1"
                           }
                         ],
-                        "id": 826,
+                        "id": 43,
                         "isConstant": false,
                         "isLValue": false,
                         "isPure": true,
                         "lValueRequested": false,
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@@ -1374,21 +1374,21 @@
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                         "typeString": "uint256"
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@@ -1399,18 +1399,18 @@
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                             "typeString": "function () view returns (address payable)"
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@@ -1418,7 +1418,7 @@
                         "lValueRequested": false,
                         "names": [],
                         "nodeType": "FunctionCall",
-                        "src": "1224:12:2",
+                        "src": "1224:12:0",
                         "typeDescriptions": {
                           "typeIdentifier": "t_address_payable",
                           "typeString": "address payable"
@@ -1426,12 +1426,12 @@
                       },
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                           "typeString": "uint256"
@@ -1439,12 +1439,12 @@
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                           "typeString": "uint256"
@@ -1453,14 +1453,14 @@
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@@ -1472,18 +1472,18 @@
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+                          "src": "1258:9:0",
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+                            "typeIdentifier": "t_type$_t_enum$_ClaimCase_$1094_$",
                             "typeString": "type(enum IAKAP.ClaimCase)"
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@@ -1491,9 +1491,9 @@
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                         "referencedDeclaration": null,
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                         "typeDescriptions": {
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+                          "typeIdentifier": "t_enum$_ClaimCase_$1094",
                           "typeString": "enum IAKAP.ClaimCase"
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@@ -1517,22 +1517,22 @@
                           "typeString": "literal_string \"\""
                         },
                         {
-                          "typeIdentifier": "t_enum$_ClaimCase_$1865",
+                          "typeIdentifier": "t_enum$_ClaimCase_$1094",
                           "typeString": "enum IAKAP.ClaimCase"
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-                        "typeIdentifier": "t_function_event_nonpayable$_t_address_$_t_uint256_$_t_uint256_$_t_bytes_memory_ptr_$_t_enum$_ClaimCase_$1865_$returns$__$",
+                        "typeIdentifier": "t_function_event_nonpayable$_t_address_$_t_uint256_$_t_uint256_$_t_bytes_memory_ptr_$_t_enum$_ClaimCase_$1094_$returns$__$",
                         "typeString": "function (address,uint256,uint256,bytes memory,enum IAKAP.ClaimCase)"
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@@ -1540,20 +1540,20 @@
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                     "names": [],
                     "nodeType": "FunctionCall",
-                    "src": "1218:54:2",
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                       "typeString": "tuple()"
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@@ -1562,14 +1562,14 @@
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@@ -1580,14 +1580,14 @@
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@@ -1596,67 +1596,67 @@
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                   "typeDescriptions": {
-                    "typeIdentifier": "t_type$_t_contract$_ERC721Full_$3316_$",
+                    "typeIdentifier": "t_type$_t_contract$_ERC721Full_$2545_$",
                     "typeString": "type(contract ERC721Full)"
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@@ -1664,43 +1664,43 @@
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                       "typeString": "address payable"
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@@ -1708,10 +1708,10 @@
                     "typeString": "address payable"
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+                    "id": 62,
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@@ -1722,19 +1722,19 @@
                   "visibility": "internal"
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@@ -1742,48 +1742,117 @@
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+                          "typeString": "bool"
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+                              "src": "1448:6:0",
+                              "typeDescriptions": {
+                                "typeIdentifier": "t_uint256",
+                                "typeString": "uint256"
+                              }
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+                                "typeIdentifier": "t_uint256",
+                                "typeString": "uint256"
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                             "typeDescriptions": {
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-                              "typeString": "uint256"
+                              "typeIdentifier": "t_function_internal_view$_t_uint256_$returns$_t_bool_$",
+                              "typeString": "function (uint256) view returns (bool)"
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                               "typeString": "uint256"
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-                          "src": "1440:7:2",
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+                          "operator": ">",
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+                            "nodeType": "Literal",
+                            "src": "1468:1:0",
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+                            "typeDescriptions": {
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+                              "typeString": "int_const 0"
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                           "typeDescriptions": {
-                            "typeIdentifier": "t_function_internal_view$_t_uint256_$returns$_t_bool_$",
-                            "typeString": "function (uint256) view returns (bool)"
+                            "typeIdentifier": "t_bool",
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-                        "names": [],
-                        "nodeType": "FunctionCall",
-                        "src": "1440:15:2",
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@@ -1792,14 +1861,14 @@
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                         "nodeType": "Literal",
-                        "src": "1457:43:2",
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@@ -1819,21 +1888,21 @@
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@@ -1841,38 +1910,38 @@
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-                    "src": "1432:69:2",
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@@ -1880,10 +1949,10 @@
                     "typeString": "uint256"
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                       "typeString": "uint256"
@@ -1893,16 +1962,16 @@
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@@ -1914,146 +1983,215 @@
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-                              "typeString": "function (address,uint256) view returns (bool)"
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@@ -2089,21 +2227,21 @@
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@@ -2111,38 +2249,38 @@
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@@ -2163,16 +2301,16 @@
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@@ -2249,7 +2387,7 @@
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@@ -2317,13 +2455,13 @@
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@@ -2359,21 +2497,21 @@
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@@ -2410,10 +2548,10 @@
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@@ -2423,18 +2561,18 @@
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@@ -2448,18 +2586,18 @@
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@@ -2495,10 +2633,10 @@
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@@ -2508,7 +2646,7 @@
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@@ -2517,12 +2655,12 @@
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@@ -2530,12 +2668,12 @@
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@@ -2555,18 +2693,18 @@
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@@ -2574,13 +2712,13 @@
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@@ -2588,7 +2726,7 @@
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@@ -2602,18 +2740,18 @@
                           "typeString": "bytes memory"
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@@ -2640,19 +2778,19 @@
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@@ -2663,14 +2801,14 @@
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@@ -2678,7 +2816,7 @@
                           },
                           "value": "0"
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-                        "src": "2020:10:2",
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@@ -2687,14 +2825,14 @@
                       {
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@@ -2714,21 +2852,21 @@
                           "typeString": "literal_string \"AKAP: Invalid node hash\""
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@@ -2736,15 +2874,15 @@
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@@ -2752,12 +2890,12 @@
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@@ -2771,20 +2909,20 @@
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@@ -2792,37 +2930,37 @@
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@@ -2830,10 +2968,10 @@
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@@ -2844,11 +2982,11 @@
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@@ -2869,19 +3007,19 @@
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@@ -2889,10 +3027,10 @@
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@@ -2902,32 +3040,32 @@
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@@ -2935,10 +3073,10 @@
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@@ -2990,20 +3128,20 @@
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@@ -3039,10 +3177,10 @@
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@@ -3052,7 +3190,7 @@
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@@ -3061,18 +3199,18 @@
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@@ -3080,7 +3218,7 @@
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-                        "src": "2592:12:2",
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@@ -3088,12 +3226,12 @@
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@@ -3111,18 +3249,18 @@
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@@ -3158,10 +3296,10 @@
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@@ -3171,18 +3309,18 @@
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@@ -3231,19 +3369,19 @@
                       "typeIdentifier": "t_bool",
                       "typeString": "bool"
                     },
-                    "id": 970,
+                    "id": 195,
                     "isConstant": false,
                     "isLValue": false,
                     "isPure": false,
                     "lValueRequested": false,
                     "leftExpression": {
                       "argumentTypes": null,
-                      "id": 964,
+                      "id": 189,
                       "name": "nodeExists",
                       "nodeType": "Identifier",
                       "overloadedDeclarations": [],
-                      "referencedDeclaration": 959,
-                      "src": "2673:10:2",
+                      "referencedDeclaration": 184,
+                      "src": "2701:10:0",
                       "typeDescriptions": {
                         "typeIdentifier": "t_bool",
                         "typeString": "bool"
@@ -3259,18 +3397,18 @@
                           "arguments": [],
                           "expression": {
                             "argumentTypes": [],
-                            "id": 966,
+                            "id": 191,
                             "name": "_msgSender",
                             "nodeType": "Identifier",
                             "overloadedDeclarations": [],
-                            "referencedDeclaration": 852,
-                            "src": "2706:10:2",
+                            "referencedDeclaration": 69,
+                            "src": "2734:10:0",
                             "typeDescriptions": {
                               "typeIdentifier": "t_function_internal_view$__$returns$_t_address_payable_$",
                               "typeString": "function () view returns (address payable)"
                             }
                           },
-                          "id": 967,
+                          "id": 192,
                           "isConstant": false,
                           "isLValue": false,
                           "isPure": false,
@@ -3278,7 +3416,7 @@
                           "lValueRequested": false,
                           "names": [],
                           "nodeType": "FunctionCall",
-                          "src": "2706:12:2",
+                          "src": "2734:12:0",
                           "typeDescriptions": {
                             "typeIdentifier": "t_address_payable",
                             "typeString": "address payable"
@@ -3286,12 +3424,12 @@
                         },
                         {
                           "argumentTypes": null,
-                          "id": 968,
+                          "id": 193,
                           "name": "nodeId",
                           "nodeType": "Identifier",
                           "overloadedDeclarations": [],
-                          "referencedDeclaration": 944,
-                          "src": "2720:6:2",
+                          "referencedDeclaration": 169,
+                          "src": "2748:6:0",
                           "typeDescriptions": {
                             "typeIdentifier": "t_uint256",
                             "typeString": "uint256"
@@ -3309,18 +3447,18 @@
                             "typeString": "uint256"
                           }
                         ],
-                        "id": 965,
+                        "id": 190,
                         "name": "_isApprovedOrOwner",
                         "nodeType": "Identifier",
                         "overloadedDeclarations": [],
-                        "referencedDeclaration": 2734,
-                        "src": "2687:18:2",
+                        "referencedDeclaration": 1963,
+                        "src": "2715:18:0",
                         "typeDescriptions": {
                           "typeIdentifier": "t_function_internal_view$_t_address_$_t_uint256_$returns$_t_bool_$",
                           "typeString": "function (address,uint256) view returns (bool)"
                         }
                       },
-                      "id": 969,
+                      "id": 194,
                       "isConstant": false,
                       "isLValue": false,
                       "isPure": false,
@@ -3328,13 +3466,13 @@
                       "lValueRequested": false,
                       "names": [],
                       "nodeType": "FunctionCall",
-                      "src": "2687:40:2",
+                      "src": "2715:40:0",
                       "typeDescriptions": {
                         "typeIdentifier": "t_bool",
                         "typeString": "bool"
                       }
                     },
-                    "src": "2673:54:2",
+                    "src": "2701:54:0",
                     "typeDescriptions": {
                       "typeIdentifier": "t_bool",
                       "typeString": "bool"
@@ -3347,14 +3485,14 @@
                         "typeIdentifier": "t_bool",
                         "typeString": "bool"
                       },
-                      "id": 1007,
+                      "id": 232,
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                       "isLValue": false,
                       "isPure": false,
                       "lValueRequested": false,
                       "leftExpression": {
                         "argumentTypes": null,
-                        "id": 1005,
+                        "id": 230,
                         "isConstant": false,
                         "isLValue": false,
                         "isPure": false,
@@ -3362,15 +3500,15 @@
                         "nodeType": "UnaryOperation",
                         "operator": "!",
                         "prefix": true,
-                        "src": "3051:11:2",
+                        "src": "3079:11:0",
                         "subExpression": {
                           "argumentTypes": null,
-                          "id": 1004,
+                          "id": 229,
                           "name": "nodeExists",
                           "nodeType": "Identifier",
                           "overloadedDeclarations": [],
-                          "referencedDeclaration": 959,
-                          "src": "3052:10:2",
+                          "referencedDeclaration": 184,
+                          "src": "3080:10:0",
                           "typeDescriptions": {
                             "typeIdentifier": "t_bool",
                             "typeString": "bool"
@@ -3385,18 +3523,18 @@
                       "operator": "&&",
                       "rightExpression": {
                         "argumentTypes": null,
-                        "id": 1006,
+                        "id": 231,
                         "name": "isParentOwner",
                         "nodeType": "Identifier",
                         "overloadedDeclarations": [],
-                        "referencedDeclaration": 951,
-                        "src": "3066:13:2",
+                        "referencedDeclaration": 176,
+                        "src": "3094:13:0",
                         "typeDescriptions": {
                           "typeIdentifier": "t_bool",
                           "typeString": "bool"
                         }
                       },
-                      "src": "3051:28:2",
+                      "src": "3079:28:0",
                       "typeDescriptions": {
                         "typeIdentifier": "t_bool",
                         "typeString": "bool"
@@ -3409,7 +3547,7 @@
                           "typeIdentifier": "t_bool",
                           "typeString": "bool"
                         },
-                        "id": 1053,
+                        "id": 278,
                         "isConstant": false,
                         "isLValue": false,
                         "isPure": false,
@@ -3420,19 +3558,19 @@
                             "typeIdentifier": "t_bool",
                             "typeString": "bool"
                           },
-                          "id": 1051,
+                          "id": 276,
                           "isConstant": false,
                           "isLValue": false,
                           "isPure": false,
                           "lValueRequested": false,
                           "leftExpression": {
                             "argumentTypes": null,
-                            "id": 1044,
+                            "id": 269,
                             "name": "nodeExists",
                             "nodeType": "Identifier",
                             "overloadedDeclarations": [],
-                            "referencedDeclaration": 959,
-                            "src": "3393:10:2",
+                            "referencedDeclaration": 184,
+                            "src": "3421:10:0",
                             "typeDescriptions": {
                               "typeIdentifier": "t_bool",
                               "typeString": "bool"
@@ -3446,7 +3584,7 @@
                               "typeIdentifier": "t_uint256",
                               "typeString": "uint256"
                             },
-                            "id": 1050,
+                            "id": 275,
                             "isConstant": false,
                             "isLValue": false,
                             "isPure": false,
@@ -3457,26 +3595,26 @@
                                 "argumentTypes": null,
                                 "baseExpression": {
                                   "argumentTypes": null,
-                                  "id": 1045,
+                                  "id": 270,
                                   "name": "nodes",
                                   "nodeType": "Identifier",
                                   "overloadedDeclarations": [],
-                                  "referencedDeclaration": 805,
-                                  "src": "3407:5:2",
+                                  "referencedDeclaration": 22,
+                                  "src": "3435:5:0",
                                   "typeDescriptions": {
-                                    "typeIdentifier": "t_mapping$_t_uint256_$_t_struct$_Node_$801_storage_$",
+                                    "typeIdentifier": "t_mapping$_t_uint256_$_t_struct$_Node_$18_storage_$",
                                     "typeString": "mapping(uint256 => struct AKAF.Node storage ref)"
                                   }
                                 },
-                                "id": 1047,
+                                "id": 272,
                                 "indexExpression": {
                                   "argumentTypes": null,
-                                  "id": 1046,
+                                  "id": 271,
                                   "name": "nodeId",
                                   "nodeType": "Identifier",
                                   "overloadedDeclarations": [],
-                                  "referencedDeclaration": 944,
-                                  "src": "3413:6:2",
+                                  "referencedDeclaration": 169,
+                                  "src": "3441:6:0",
                                   "typeDescriptions": {
                                     "typeIdentifier": "t_uint256",
                                     "typeString": "uint256"
@@ -3487,21 +3625,21 @@
                                 "isPure": false,
                                 "lValueRequested": false,
                                 "nodeType": "IndexAccess",
-                                "src": "3407:13:2",
+                                "src": "3435:13:0",
                                 "typeDescriptions": {
-                                  "typeIdentifier": "t_struct$_Node_$801_storage",
+                                  "typeIdentifier": "t_struct$_Node_$18_storage",
                                   "typeString": "struct AKAF.Node storage ref"
                                 }
                               },
-                              "id": 1048,
+                              "id": 273,
                               "isConstant": false,
                               "isLValue": true,
                               "isPure": false,
                               "lValueRequested": false,
                               "memberName": "expiry",
                               "nodeType": "MemberAccess",
-                              "referencedDeclaration": 794,
-                              "src": "3407:20:2",
+                              "referencedDeclaration": 11,
+                              "src": "3435:20:0",
                               "typeDescriptions": {
                                 "typeIdentifier": "t_uint256",
                                 "typeString": "uint256"
@@ -3511,24 +3649,24 @@
                             "operator": "<=",
                             "rightExpression": {
                               "argumentTypes": null,
-                              "id": 1049,
+                              "id": 274,
                               "name": "now",
                               "nodeType": "Identifier",
                               "overloadedDeclarations": [],
-                              "referencedDeclaration": 3650,
-                              "src": "3431:3:2",
+                              "referencedDeclaration": 2879,
+                              "src": "3459:3:0",
                               "typeDescriptions": {
                                 "typeIdentifier": "t_uint256",
                                 "typeString": "uint256"
                               }
                             },
-                            "src": "3407:27:2",
+                            "src": "3435:27:0",
                             "typeDescriptions": {
                               "typeIdentifier": "t_bool",
                               "typeString": "bool"
                             }
                           },
-                          "src": "3393:41:2",
+                          "src": "3421:41:0",
                           "typeDescriptions": {
                             "typeIdentifier": "t_bool",
                             "typeString": "bool"
@@ -3538,31 +3676,31 @@
                         "operator": "&&",
                         "rightExpression": {
                           "argumentTypes": null,
-                          "id": 1052,
+                          "id": 277,
                           "name": "isParentOwner",
                           "nodeType": "Identifier",
                           "overloadedDeclarations": [],
-                          "referencedDeclaration": 951,
-                          "src": "3438:13:2",
+                          "referencedDeclaration": 176,
+                          "src": "3466:13:0",
                           "typeDescriptions": {
                             "typeIdentifier": "t_bool",
                             "typeString": "bool"
                           }
                         },
-                        "src": "3393:58:2",
+                        "src": "3421:58:0",
                         "typeDescriptions": {
                           "typeIdentifier": "t_bool",
                           "typeString": "bool"
                         }
                       },
                       "falseBody": null,
-                      "id": 1096,
+                      "id": 321,
                       "nodeType": "IfStatement",
-                      "src": "3389:460:2",
+                      "src": "3417:460:0",
                       "trueBody": {
-                        "id": 1095,
+                        "id": 320,
                         "nodeType": "Block",
-                        "src": "3453:396:2",
+                        "src": "3481:396:0",
                         "statements": [
                           {
                             "expression": {
@@ -3574,19 +3712,19 @@
                                     "typeIdentifier": "t_uint256",
                                     "typeString": "uint256"
                                   },
-                                  "id": 1060,
+                                  "id": 285,
                                   "isConstant": false,
                                   "isLValue": false,
                                   "isPure": false,
                                   "lValueRequested": false,
                                   "leftExpression": {
                                     "argumentTypes": null,
-                                    "id": 1055,
+                                    "id": 280,
                                     "name": "parentId",
                                     "nodeType": "Identifier",
                                     "overloadedDeclarations": [],
-                                    "referencedDeclaration": 936,
-                                    "src": "3475:8:2",
+                                    "referencedDeclaration": 161,
+                                    "src": "3503:8:0",
                                     "typeDescriptions": {
                                       "typeIdentifier": "t_uint256",
                                       "typeString": "uint256"
@@ -3600,26 +3738,26 @@
                                       "argumentTypes": null,
                                       "baseExpression": {
                                         "argumentTypes": null,
-                                        "id": 1056,
+                                        "id": 281,
                                         "name": "nodes",
                                         "nodeType": "Identifier",
                                         "overloadedDeclarations": [],
-                                        "referencedDeclaration": 805,
-                                        "src": "3487:5:2",
+                                        "referencedDeclaration": 22,
+                                        "src": "3515:5:0",
                                         "typeDescriptions": {
-                                          "typeIdentifier": "t_mapping$_t_uint256_$_t_struct$_Node_$801_storage_$",
+                                          "typeIdentifier": "t_mapping$_t_uint256_$_t_struct$_Node_$18_storage_$",
                                           "typeString": "mapping(uint256 => struct AKAF.Node storage ref)"
                                         }
                                       },
-                                      "id": 1058,
+                                      "id": 283,
                                       "indexExpression": {
                                         "argumentTypes": null,
-                                        "id": 1057,
+                                        "id": 282,
                                         "name": "nodeId",
                                         "nodeType": "Identifier",
                                         "overloadedDeclarations": [],
-                                        "referencedDeclaration": 944,
-                                        "src": "3493:6:2",
+                                        "referencedDeclaration": 169,
+                                        "src": "3521:6:0",
                                         "typeDescriptions": {
                                           "typeIdentifier": "t_uint256",
                                           "typeString": "uint256"
@@ -3630,27 +3768,27 @@
                                       "isPure": false,
                                       "lValueRequested": false,
                                       "nodeType": "IndexAccess",
-                                      "src": "3487:13:2",
+                                      "src": "3515:13:0",
                                       "typeDescriptions": {
-                                        "typeIdentifier": "t_struct$_Node_$801_storage",
+                                        "typeIdentifier": "t_struct$_Node_$18_storage",
                                         "typeString": "struct AKAF.Node storage ref"
                                       }
                                     },
-                                    "id": 1059,
+                                    "id": 284,
                                     "isConstant": false,
                                     "isLValue": true,
                                     "isPure": false,
                                     "lValueRequested": false,
                                     "memberName": "parentId",
                                     "nodeType": "MemberAccess",
-                                    "referencedDeclaration": 792,
-                                    "src": "3487:22:2",
+                                    "referencedDeclaration": 9,
+                                    "src": "3515:22:0",
                                     "typeDescriptions": {
                                       "typeIdentifier": "t_uint256",
                                       "typeString": "uint256"
                                     }
                                   },
-                                  "src": "3475:34:2",
+                                  "src": "3503:34:0",
                                   "typeDescriptions": {
                                     "typeIdentifier": "t_bool",
                                     "typeString": "bool"
@@ -3659,14 +3797,14 @@
                                 {
                                   "argumentTypes": null,
                                   "hexValue": "414b41503a20496e76616c696420706172656e742068617368",
-                                  "id": 1061,
+                                  "id": 286,
                                   "isConstant": false,
                                   "isLValue": false,
                                   "isPure": true,
                                   "kind": "string",
                                   "lValueRequested": false,
                                   "nodeType": "Literal",
-                                  "src": "3511:27:2",
+                                  "src": "3539:27:0",
                                   "subdenomination": null,
                                   "typeDescriptions": {
                                     "typeIdentifier": "t_stringliteral_64b34acd8a645818c53dcaba71e4e82f4914fdcb799ec12bc45079715e103af6",
@@ -3686,21 +3824,21 @@
                                     "typeString": "literal_string \"AKAP: Invalid parent hash\""
                                   }
                                 ],
-                                "id": 1054,
+                                "id": 279,
                                 "name": "require",
                                 "nodeType": "Identifier",
                                 "overloadedDeclarations": [
-                                  3651,
-                                  3652
+                                  2880,
+                                  2881
                                 ],
-                                "referencedDeclaration": 3652,
-                                "src": "3467:7:2",
+                                "referencedDeclaration": 2881,
+                                "src": "3495:7:0",
                                 "typeDescriptions": {
                                   "typeIdentifier": "t_function_require_pure$_t_bool_$_t_string_memory_ptr_$returns$__$",
                                   "typeString": "function (bool,string memory) pure"
                                 }
                               },
-                              "id": 1062,
+                              "id": 287,
                               "isConstant": false,
                               "isLValue": false,
                               "isPure": false,
@@ -3708,15 +3846,15 @@
                               "lValueRequested": false,
                               "names": [],
                               "nodeType": "FunctionCall",
-                              "src": "3467:72:2",
+                              "src": "3495:72:0",
                               "typeDescriptions": {
                                 "typeIdentifier": "t_tuple$__$",
                                 "typeString": "tuple()"
                               }
                             },
-                            "id": 1063,
+                            "id": 288,
                             "nodeType": "ExpressionStatement",
-                            "src": "3467:72:2"
+                            "src": "3495:72:0"
                           },
                           {
                             "expression": {
@@ -3727,12 +3865,12 @@
                                   "arguments": [
                                     {
                                       "argumentTypes": null,
-                                      "id": 1066,
+                                      "id": 291,
                                       "name": "nodeId",
                                       "nodeType": "Identifier",
                                       "overloadedDeclarations": [],
-                                      "referencedDeclaration": 944,
-                                      "src": "3657:6:2",
+                                      "referencedDeclaration": 169,
+                                      "src": "3685:6:0",
                                       "typeDescriptions": {
                                         "typeIdentifier": "t_uint256",
                                         "typeString": "uint256"
@@ -3746,20 +3884,20 @@
                                         "typeString": "uint256"
                                       }
                                     ],
-                                    "id": 1065,
+                                    "id": 290,
                                     "name": "ownerOf",
                                     "nodeType": "Identifier",
                                     "overloadedDeclarations": [
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+                                      1720
                                     ],
-                                    "referencedDeclaration": 2491,
-                                    "src": "3649:7:2",
+                                    "referencedDeclaration": 1720,
+                                    "src": "3677:7:0",
                                     "typeDescriptions": {
                                       "typeIdentifier": "t_function_internal_view$_t_uint256_$returns$_t_address_$",
                                       "typeString": "function (uint256) view returns (address)"
                                     }
                                   },
-                                  "id": 1067,
+                                  "id": 292,
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@@ -3767,7 +3905,7 @@
                                   "lValueRequested": false,
                                   "names": [],
                                   "nodeType": "FunctionCall",
-                                  "src": "3649:15:2",
+                                  "src": "3677:15:0",
                                   "typeDescriptions": {
                                     "typeIdentifier": "t_address",
                                     "typeString": "address"
@@ -3778,18 +3916,18 @@
                                   "arguments": [],
                                   "expression": {
                                     "argumentTypes": [],
-                                    "id": 1068,
+                                    "id": 293,
                                     "name": "_msgSender",
                                     "nodeType": "Identifier",
                                     "overloadedDeclarations": [],
-                                    "referencedDeclaration": 852,
-                                    "src": "3666:10:2",
+                                    "referencedDeclaration": 69,
+                                    "src": "3694:10:0",
                                     "typeDescriptions": {
                                       "typeIdentifier": "t_function_internal_view$__$returns$_t_address_payable_$",
                                       "typeString": "function () view returns (address payable)"
                                     }
                                   },
-                                  "id": 1069,
+                                  "id": 294,
                                   "isConstant": false,
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@@ -3797,7 +3935,7 @@
                                   "lValueRequested": false,
                                   "names": [],
                                   "nodeType": "FunctionCall",
-                                  "src": "3666:12:2",
+                                  "src": "3694:12:0",
                                   "typeDescriptions": {
                                     "typeIdentifier": "t_address_payable",
                                     "typeString": "address payable"
@@ -3805,12 +3943,12 @@
                                 },
                                 {
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-                                  "id": 1070,
+                                  "id": 295,
                                   "name": "nodeId",
                                   "nodeType": "Identifier",
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-                                  "referencedDeclaration": 944,
-                                  "src": "3680:6:2",
+                                  "referencedDeclaration": 169,
+                                  "src": "3708:6:0",
                                   "typeDescriptions": {
                                     "typeIdentifier": "t_uint256",
                                     "typeString": "uint256"
@@ -3832,20 +3970,20 @@
                                     "typeString": "uint256"
                                   }
                                 ],
-                                "id": 1064,
+                                "id": 289,
                                 "name": "_transferFrom",
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+                                  2304
                                 ],
-                                "referencedDeclaration": 3075,
-                                "src": "3635:13:2",
+                                "referencedDeclaration": 2304,
+                                "src": "3663:13:0",
                                 "typeDescriptions": {
                                   "typeIdentifier": "t_function_internal_nonpayable$_t_address_$_t_address_$_t_uint256_$returns$__$",
                                   "typeString": "function (address,address,uint256)"
                                 }
                               },
-                              "id": 1071,
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@@ -3853,20 +3991,20 @@
                               "lValueRequested": false,
                               "names": [],
                               "nodeType": "FunctionCall",
-                              "src": "3635:52:2",
+                              "src": "3663:52:0",
                               "typeDescriptions": {
                                 "typeIdentifier": "t_tuple$__$",
                                 "typeString": "tuple()"
                               }
                             },
-                            "id": 1072,
+                            "id": 297,
                             "nodeType": "ExpressionStatement",
-                            "src": "3635:52:2"
+                            "src": "3663:52:0"
                           },
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                             "expression": {
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@@ -3877,26 +4015,26 @@
                                   "argumentTypes": null,
                                   "baseExpression": {
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-                                    "id": 1073,
+                                    "id": 298,
                                     "name": "nodes",
                                     "nodeType": "Identifier",
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-                                    "referencedDeclaration": 805,
-                                    "src": "3701:5:2",
+                                    "referencedDeclaration": 22,
+                                    "src": "3729:5:0",
                                     "typeDescriptions": {
-                                      "typeIdentifier": "t_mapping$_t_uint256_$_t_struct$_Node_$801_storage_$",
+                                      "typeIdentifier": "t_mapping$_t_uint256_$_t_struct$_Node_$18_storage_$",
                                       "typeString": "mapping(uint256 => struct AKAF.Node storage ref)"
                                     }
                                   },
-                                  "id": 1075,
+                                  "id": 300,
                                   "indexExpression": {
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+                                    "id": 299,
                                     "name": "nodeId",
                                     "nodeType": "Identifier",
                                     "overloadedDeclarations": [],
-                                    "referencedDeclaration": 944,
-                                    "src": "3707:6:2",
+                                    "referencedDeclaration": 169,
+                                    "src": "3735:6:0",
                                     "typeDescriptions": {
                                       "typeIdentifier": "t_uint256",
                                       "typeString": "uint256"
@@ -3907,21 +4045,21 @@
                                   "isPure": false,
                                   "lValueRequested": false,
                                   "nodeType": "IndexAccess",
-                                  "src": "3701:13:2",
+                                  "src": "3729:13:0",
                                   "typeDescriptions": {
-                                    "typeIdentifier": "t_struct$_Node_$801_storage",
+                                    "typeIdentifier": "t_struct$_Node_$18_storage",
                                     "typeString": "struct AKAF.Node storage ref"
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                                 },
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                                 "lValueRequested": true,
                                 "memberName": "expiry",
                                 "nodeType": "MemberAccess",
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-                                "src": "3701:20:2",
+                                "referencedDeclaration": 11,
+                                "src": "3729:20:0",
                                 "typeDescriptions": {
                                   "typeIdentifier": "t_uint256",
                                   "typeString": "uint256"
@@ -3934,7 +4072,7 @@
                                 "arguments": [
                                   {
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+                                    "id": 304,
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@@ -3942,18 +4080,18 @@
                                     "nodeType": "UnaryOperation",
                                     "operator": "-",
                                     "prefix": true,
-                                    "src": "3729:2:2",
+                                    "src": "3757:2:0",
                                     "subExpression": {
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                                       "hexValue": "31",
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                                       "kind": "number",
                                       "lValueRequested": false,
                                       "nodeType": "Literal",
-                                      "src": "3730:1:2",
+                                      "src": "3758:1:0",
                                       "subdenomination": null,
                                       "typeDescriptions": {
                                         "typeIdentifier": "t_rational_1_by_1",
@@ -3974,20 +4112,20 @@
                                       "typeString": "int_const -1"
                                     }
                                   ],
-                                  "id": 1077,
+                                  "id": 302,
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                                   "lValueRequested": false,
                                   "nodeType": "ElementaryTypeNameExpression",
-                                  "src": "3724:4:2",
+                                  "src": "3752:4:0",
                                   "typeDescriptions": {
                                     "typeIdentifier": "t_type$_t_uint256_$",
                                     "typeString": "type(uint256)"
                                   },
                                   "typeName": "uint"
                                 },
-                                "id": 1080,
+                                "id": 305,
                                 "isConstant": false,
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@@ -3995,21 +4133,21 @@
                                 "lValueRequested": false,
                                 "names": [],
                                 "nodeType": "FunctionCall",
-                                "src": "3724:8:2",
+                                "src": "3752:8:0",
                                 "typeDescriptions": {
                                   "typeIdentifier": "t_uint256",
                                   "typeString": "uint256"
                                 }
                               },
-                              "src": "3701:31:2",
+                              "src": "3729:31:0",
                               "typeDescriptions": {
                                 "typeIdentifier": "t_uint256",
                                 "typeString": "uint256"
                               }
                             },
-                            "id": 1082,
+                            "id": 307,
                             "nodeType": "ExpressionStatement",
-                            "src": "3701:31:2"
+                            "src": "3729:31:0"
                           },
                           {
                             "eventCall": {
@@ -4020,18 +4158,18 @@
                                   "arguments": [],
                                   "expression": {
                                     "argumentTypes": [],
-                                    "id": 1084,
+                                    "id": 309,
                                     "name": "_msgSender",
                                     "nodeType": "Identifier",
                                     "overloadedDeclarations": [],
-                                    "referencedDeclaration": 852,
-                                    "src": "3757:10:2",
+                                    "referencedDeclaration": 69,
+                                    "src": "3785:10:0",
                                     "typeDescriptions": {
                                       "typeIdentifier": "t_function_internal_view$__$returns$_t_address_payable_$",
                                       "typeString": "function () view returns (address payable)"
                                     }
                                   },
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@@ -4039,7 +4177,7 @@
                                   "lValueRequested": false,
                                   "names": [],
                                   "nodeType": "FunctionCall",
-                                  "src": "3757:12:2",
+                                  "src": "3785:12:0",
                                   "typeDescriptions": {
                                     "typeIdentifier": "t_address_payable",
                                     "typeString": "address payable"
@@ -4047,12 +4185,12 @@
                                 },
                                 {
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-                                  "id": 1086,
+                                  "id": 311,
                                   "name": "nodeId",
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-                                  "src": "3771:6:2",
+                                  "referencedDeclaration": 169,
+                                  "src": "3799:6:0",
                                   "typeDescriptions": {
                                     "typeIdentifier": "t_uint256",
                                     "typeString": "uint256"
@@ -4060,12 +4198,12 @@
                                 },
                                 {
                                   "argumentTypes": null,
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+                                  "id": 312,
                                   "name": "parentId",
                                   "nodeType": "Identifier",
                                   "overloadedDeclarations": [],
-                                  "referencedDeclaration": 936,
-                                  "src": "3779:8:2",
+                                  "referencedDeclaration": 161,
+                                  "src": "3807:8:0",
                                   "typeDescriptions": {
                                     "typeIdentifier": "t_uint256",
                                     "typeString": "uint256"
@@ -4073,12 +4211,12 @@
                                 },
                                 {
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+                                  "id": 313,
                                   "name": "label",
                                   "nodeType": "Identifier",
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-                                  "referencedDeclaration": 938,
-                                  "src": "3789:5:2",
+                                  "referencedDeclaration": 163,
+                                  "src": "3817:5:0",
                                   "typeDescriptions": {
                                     "typeIdentifier": "t_bytes_calldata_ptr",
                                     "typeString": "bytes calldata"
@@ -4088,18 +4226,18 @@
                                   "argumentTypes": null,
                                   "expression": {
                                     "argumentTypes": null,
-                                    "id": 1089,
+                                    "id": 314,
                                     "name": "ClaimCase",
                                     "nodeType": "Identifier",
                                     "overloadedDeclarations": [],
-                                    "referencedDeclaration": 1865,
-                                    "src": "3796:9:2",
+                                    "referencedDeclaration": 1094,
+                                    "src": "3824:9:0",
                                     "typeDescriptions": {
-                                      "typeIdentifier": "t_type$_t_enum$_ClaimCase_$1865_$",
+                                      "typeIdentifier": "t_type$_t_enum$_ClaimCase_$1094_$",
                                       "typeString": "type(enum IAKAP.ClaimCase)"
                                     }
                                   },
-                                  "id": 1090,
+                                  "id": 315,
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@@ -4107,9 +4245,9 @@
                                   "memberName": "TRANSFER",
                                   "nodeType": "MemberAccess",
                                   "referencedDeclaration": null,
-                                  "src": "3796:18:2",
+                                  "src": "3824:18:0",
                                   "typeDescriptions": {
-                                    "typeIdentifier": "t_enum$_ClaimCase_$1865",
+                                    "typeIdentifier": "t_enum$_ClaimCase_$1094",
                                     "typeString": "enum IAKAP.ClaimCase"
                                   }
                                 }
@@ -4133,22 +4271,22 @@
                                     "typeString": "bytes calldata"
                                   },
                                   {
-                                    "typeIdentifier": "t_enum$_ClaimCase_$1865",
+                                    "typeIdentifier": "t_enum$_ClaimCase_$1094",
                                     "typeString": "enum IAKAP.ClaimCase"
                                   }
                                 ],
-                                "id": 1083,
+                                "id": 308,
                                 "name": "Claim",
                                 "nodeType": "Identifier",
                                 "overloadedDeclarations": [],
-                                "referencedDeclaration": 1883,
-                                "src": "3751:5:2",
+                                "referencedDeclaration": 1112,
+                                "src": "3779:5:0",
                                 "typeDescriptions": {
-                                  "typeIdentifier": "t_function_event_nonpayable$_t_address_$_t_uint256_$_t_uint256_$_t_bytes_memory_ptr_$_t_enum$_ClaimCase_$1865_$returns$__$",
+                                  "typeIdentifier": "t_function_event_nonpayable$_t_address_$_t_uint256_$_t_uint256_$_t_bytes_memory_ptr_$_t_enum$_ClaimCase_$1094_$returns$__$",
                                   "typeString": "function (address,uint256,uint256,bytes memory,enum IAKAP.ClaimCase)"
                                 }
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@@ -4156,28 +4294,28 @@
                               "lValueRequested": false,
                               "names": [],
                               "nodeType": "FunctionCall",
-                              "src": "3751:64:2",
+                              "src": "3779:64:0",
                               "typeDescriptions": {
                                 "typeIdentifier": "t_tuple$__$",
                                 "typeString": "tuple()"
                               }
                             },
-                            "id": 1092,
+                            "id": 317,
                             "nodeType": "EmitStatement",
-                            "src": "3746:69:2"
+                            "src": "3774:69:0"
                           },
                           {
                             "expression": {
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                               "hexValue": "33",
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                               "kind": "number",
                               "lValueRequested": false,
                               "nodeType": "Literal",
-                              "src": "3837:1:2",
+                              "src": "3865:1:0",
                               "subdenomination": null,
                               "typeDescriptions": {
                                 "typeIdentifier": "t_rational_3_by_1",
@@ -4185,21 +4323,21 @@
                               },
                               "value": "3"
                             },
-                            "functionReturnParameters": 942,
-                            "id": 1094,
+                            "functionReturnParameters": 167,
+                            "id": 319,
                             "nodeType": "Return",
-                            "src": "3830:8:2"
+                            "src": "3858:8:0"
                           }
                         ]
                       }
                     },
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+                    "id": 322,
                     "nodeType": "IfStatement",
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+                    "src": "3075:802:0",
                     "trueBody": {
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+                      "id": 268,
                       "nodeType": "Block",
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                         {
                           "expression": {
@@ -4210,18 +4348,18 @@
                                 "arguments": [],
                                 "expression": {
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+                                  "id": 234,
                                   "name": "_msgSender",
                                   "nodeType": "Identifier",
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-                                  "referencedDeclaration": 852,
-                                  "src": "3158:10:2",
+                                  "referencedDeclaration": 69,
+                                  "src": "3186:10:0",
                                   "typeDescriptions": {
                                     "typeIdentifier": "t_function_internal_view$__$returns$_t_address_payable_$",
                                     "typeString": "function () view returns (address payable)"
                                   }
                                 },
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@@ -4229,7 +4367,7 @@
                                 "lValueRequested": false,
                                 "names": [],
                                 "nodeType": "FunctionCall",
-                                "src": "3158:12:2",
+                                "src": "3186:12:0",
                                 "typeDescriptions": {
                                   "typeIdentifier": "t_address_payable",
                                   "typeString": "address payable"
@@ -4237,12 +4375,12 @@
                               },
                               {
                                 "argumentTypes": null,
-                                "id": 1011,
+                                "id": 236,
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-                                "src": "3172:6:2",
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+                                "src": "3200:6:0",
                                 "typeDescriptions": {
                                   "typeIdentifier": "t_uint256",
                                   "typeString": "uint256"
@@ -4260,20 +4398,20 @@
                                   "typeString": "uint256"
                                 }
                               ],
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+                              "id": 233,
                               "name": "_mint",
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+                                2328
                               ],
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-                              "src": "3152:5:2",
+                              "referencedDeclaration": 2328,
+                              "src": "3180:5:0",
                               "typeDescriptions": {
                                 "typeIdentifier": "t_function_internal_nonpayable$_t_address_$_t_uint256_$returns$__$",
                                 "typeString": "function (address,uint256)"
                               }
                             },
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@@ -4281,20 +4419,20 @@
                             "lValueRequested": false,
                             "names": [],
                             "nodeType": "FunctionCall",
-                            "src": "3152:27:2",
+                            "src": "3180:27:0",
                             "typeDescriptions": {
                               "typeIdentifier": "t_tuple$__$",
                               "typeString": "tuple()"
                             }
                           },
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                           "nodeType": "ExpressionStatement",
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+                          "src": "3180:27:0"
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@@ -4305,26 +4443,26 @@
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+                                  "src": "3221:5:0",
                                   "typeDescriptions": {
-                                    "typeIdentifier": "t_mapping$_t_uint256_$_t_struct$_Node_$801_storage_$",
+                                    "typeIdentifier": "t_mapping$_t_uint256_$_t_struct$_Node_$18_storage_$",
                                     "typeString": "mapping(uint256 => struct AKAF.Node storage ref)"
                                   }
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                                 "indexExpression": {
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+                                  "src": "3227:6:0",
                                   "typeDescriptions": {
                                     "typeIdentifier": "t_uint256",
                                     "typeString": "uint256"
@@ -4335,21 +4473,21 @@
                                 "isPure": false,
                                 "lValueRequested": false,
                                 "nodeType": "IndexAccess",
-                                "src": "3193:13:2",
+                                "src": "3221:13:0",
                                 "typeDescriptions": {
-                                  "typeIdentifier": "t_struct$_Node_$801_storage",
+                                  "typeIdentifier": "t_struct$_Node_$18_storage",
                                   "typeString": "struct AKAF.Node storage ref"
                                 }
                               },
-                              "id": 1017,
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                               "lValueRequested": true,
                               "memberName": "parentId",
                               "nodeType": "MemberAccess",
-                              "referencedDeclaration": 792,
-                              "src": "3193:22:2",
+                              "referencedDeclaration": 9,
+                              "src": "3221:22:0",
                               "typeDescriptions": {
                                 "typeIdentifier": "t_uint256",
                                 "typeString": "uint256"
@@ -4359,31 +4497,31 @@
                             "operator": "=",
                             "rightHandSide": {
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-                              "id": 1018,
+                              "id": 243,
                               "name": "parentId",
                               "nodeType": "Identifier",
                               "overloadedDeclarations": [],
-                              "referencedDeclaration": 936,
-                              "src": "3218:8:2",
+                              "referencedDeclaration": 161,
+                              "src": "3246:8:0",
                               "typeDescriptions": {
                                 "typeIdentifier": "t_uint256",
                                 "typeString": "uint256"
                               }
                             },
-                            "src": "3193:33:2",
+                            "src": "3221:33:0",
                             "typeDescriptions": {
                               "typeIdentifier": "t_uint256",
                               "typeString": "uint256"
                             }
                           },
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+                          "id": 245,
                           "nodeType": "ExpressionStatement",
-                          "src": "3193:33:2"
+                          "src": "3221:33:0"
                         },
                         {
                           "expression": {
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+                            "id": 254,
                             "isConstant": false,
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@@ -4394,26 +4532,26 @@
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+                                  "id": 246,
                                   "name": "nodes",
                                   "nodeType": "Identifier",
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-                                  "referencedDeclaration": 805,
-                                  "src": "3240:5:2",
+                                  "referencedDeclaration": 22,
+                                  "src": "3268:5:0",
                                   "typeDescriptions": {
-                                    "typeIdentifier": "t_mapping$_t_uint256_$_t_struct$_Node_$801_storage_$",
+                                    "typeIdentifier": "t_mapping$_t_uint256_$_t_struct$_Node_$18_storage_$",
                                     "typeString": "mapping(uint256 => struct AKAF.Node storage ref)"
                                   }
                                 },
-                                "id": 1023,
+                                "id": 248,
                                 "indexExpression": {
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                                   "name": "nodeId",
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+                                  "src": "3274:6:0",
                                   "typeDescriptions": {
                                     "typeIdentifier": "t_uint256",
                                     "typeString": "uint256"
@@ -4424,21 +4562,21 @@
                                 "isPure": false,
                                 "lValueRequested": false,
                                 "nodeType": "IndexAccess",
-                                "src": "3240:13:2",
+                                "src": "3268:13:0",
                                 "typeDescriptions": {
-                                  "typeIdentifier": "t_struct$_Node_$801_storage",
+                                  "typeIdentifier": "t_struct$_Node_$18_storage",
                                   "typeString": "struct AKAF.Node storage ref"
                                 }
                               },
-                              "id": 1024,
+                              "id": 249,
                               "isConstant": false,
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                               "lValueRequested": true,
                               "memberName": "expiry",
                               "nodeType": "MemberAccess",
-                              "referencedDeclaration": 794,
-                              "src": "3240:20:2",
+                              "referencedDeclaration": 11,
+                              "src": "3268:20:0",
                               "typeDescriptions": {
                                 "typeIdentifier": "t_uint256",
                                 "typeString": "uint256"
@@ -4451,7 +4589,7 @@
                               "arguments": [
                                 {
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+                                  "id": 252,
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@@ -4459,18 +4597,18 @@
                                   "nodeType": "UnaryOperation",
                                   "operator": "-",
                                   "prefix": true,
-                                  "src": "3268:2:2",
+                                  "src": "3296:2:0",
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                                     "hexValue": "31",
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                                     "isPure": true,
                                     "kind": "number",
                                     "lValueRequested": false,
                                     "nodeType": "Literal",
-                                    "src": "3269:1:2",
+                                    "src": "3297:1:0",
                                     "subdenomination": null,
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@@ -4491,20 +4629,20 @@
                                     "typeString": "int_const -1"
                                   }
                                 ],
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+                                "id": 250,
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                                 "isPure": true,
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                                 "nodeType": "ElementaryTypeNameExpression",
-                                "src": "3263:4:2",
+                                "src": "3291:4:0",
                                 "typeDescriptions": {
                                   "typeIdentifier": "t_type$_t_uint256_$",
                                   "typeString": "type(uint256)"
                                 },
                                 "typeName": "uint"
                               },
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@@ -4512,21 +4650,21 @@
                               "lValueRequested": false,
                               "names": [],
                               "nodeType": "FunctionCall",
-                              "src": "3263:8:2",
+                              "src": "3291:8:0",
                               "typeDescriptions": {
                                 "typeIdentifier": "t_uint256",
                                 "typeString": "uint256"
                               }
                             },
-                            "src": "3240:31:2",
+                            "src": "3268:31:0",
                             "typeDescriptions": {
                               "typeIdentifier": "t_uint256",
                               "typeString": "uint256"
                             }
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+                          "id": 255,
                           "nodeType": "ExpressionStatement",
-                          "src": "3240:31:2"
+                          "src": "3268:31:0"
                         },
                         {
                           "eventCall": {
@@ -4537,18 +4675,18 @@
                                 "arguments": [],
                                 "expression": {
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-                                  "id": 1032,
+                                  "id": 257,
                                   "name": "_msgSender",
                                   "nodeType": "Identifier",
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-                                  "src": "3296:10:2",
+                                  "referencedDeclaration": 69,
+                                  "src": "3324:10:0",
                                   "typeDescriptions": {
                                     "typeIdentifier": "t_function_internal_view$__$returns$_t_address_payable_$",
                                     "typeString": "function () view returns (address payable)"
                                   }
                                 },
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@@ -4556,7 +4694,7 @@
                                 "lValueRequested": false,
                                 "names": [],
                                 "nodeType": "FunctionCall",
-                                "src": "3296:12:2",
+                                "src": "3324:12:0",
                                 "typeDescriptions": {
                                   "typeIdentifier": "t_address_payable",
                                   "typeString": "address payable"
@@ -4564,12 +4702,12 @@
                               },
                               {
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                                   "typeString": "uint256"
@@ -4577,12 +4715,12 @@
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                                   "typeString": "uint256"
@@ -4590,12 +4728,12 @@
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                                   "typeString": "bytes calldata"
@@ -4605,18 +4743,18 @@
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                                 "expression": {
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                                   "name": "ClaimCase",
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+                                  "src": "3363:9:0",
                                   "typeDescriptions": {
-                                    "typeIdentifier": "t_type$_t_enum$_ClaimCase_$1865_$",
+                                    "typeIdentifier": "t_type$_t_enum$_ClaimCase_$1094_$",
                                     "typeString": "type(enum IAKAP.ClaimCase)"
                                   }
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@@ -4624,9 +4762,9 @@
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                                 "typeDescriptions": {
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+                                  "typeIdentifier": "t_enum$_ClaimCase_$1094",
                                   "typeString": "enum IAKAP.ClaimCase"
                                 }
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@@ -4650,22 +4788,22 @@
                                   "typeString": "bytes calldata"
                                 },
                                 {
-                                  "typeIdentifier": "t_enum$_ClaimCase_$1865",
+                                  "typeIdentifier": "t_enum$_ClaimCase_$1094",
                                   "typeString": "enum IAKAP.ClaimCase"
                                 }
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+                              "id": 256,
                               "name": "Claim",
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-                                "typeIdentifier": "t_function_event_nonpayable$_t_address_$_t_uint256_$_t_uint256_$_t_bytes_memory_ptr_$_t_enum$_ClaimCase_$1865_$returns$__$",
+                                "typeIdentifier": "t_function_event_nonpayable$_t_address_$_t_uint256_$_t_uint256_$_t_bytes_memory_ptr_$_t_enum$_ClaimCase_$1094_$returns$__$",
                                 "typeString": "function (address,uint256,uint256,bytes memory,enum IAKAP.ClaimCase)"
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@@ -4673,28 +4811,28 @@
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                             "nodeType": "FunctionCall",
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                               "typeString": "tuple()"
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-                            "src": "3371:1:2",
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@@ -4702,21 +4840,21 @@
                             },
                             "value": "2"
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-                          "functionReturnParameters": 942,
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@@ -4728,19 +4866,19 @@
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                                 "typeString": "uint256"
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                                   "typeIdentifier": "t_uint256",
                                   "typeString": "uint256"
@@ -4754,26 +4892,26 @@
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-                                      "typeIdentifier": "t_mapping$_t_uint256_$_t_struct$_Node_$801_storage_$",
+                                      "typeIdentifier": "t_mapping$_t_uint256_$_t_struct$_Node_$18_storage_$",
                                       "typeString": "mapping(uint256 => struct AKAF.Node storage ref)"
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                                       "typeString": "uint256"
@@ -4784,27 +4922,27 @@
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                                   "nodeType": "IndexAccess",
-                                  "src": "2763:13:2",
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                                   "typeDescriptions": {
-                                    "typeIdentifier": "t_struct$_Node_$801_storage",
+                                    "typeIdentifier": "t_struct$_Node_$18_storage",
                                     "typeString": "struct AKAF.Node storage ref"
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                                   "typeIdentifier": "t_uint256",
                                   "typeString": "uint256"
                                 }
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@@ -4813,14 +4951,14 @@
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@@ -4840,21 +4978,21 @@
                                 "typeString": "literal_string \"AKAP: Invalid parent hash\""
                               }
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@@ -4862,20 +5000,20 @@
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-                          "src": "2743:72:2",
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                             "typeString": "tuple()"
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+                                  "typeIdentifier": "t_mapping$_t_uint256_$_t_struct$_Node_$18_storage_$",
                                   "typeString": "mapping(uint256 => struct AKAF.Node storage ref)"
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                                   "typeString": "uint256"
@@ -4916,21 +5054,21 @@
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-                              "src": "2894:13:2",
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                               "typeDescriptions": {
-                                "typeIdentifier": "t_struct$_Node_$801_storage",
+                                "typeIdentifier": "t_struct$_Node_$18_storage",
                                 "typeString": "struct AKAF.Node storage ref"
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@@ -4951,18 +5089,18 @@
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-                                  "src": "2923:1:2",
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@@ -4983,20 +5121,20 @@
                                   "typeString": "int_const -1"
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                               "nodeType": "ElementaryTypeNameExpression",
-                              "src": "2917:4:2",
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                                 "typeString": "type(uint256)"
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                               "typeName": "uint"
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@@ -5004,21 +5142,21 @@
                             "lValueRequested": false,
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                             "nodeType": "FunctionCall",
-                            "src": "2917:8:2",
+                            "src": "2945:8:0",
                             "typeDescriptions": {
                               "typeIdentifier": "t_uint256",
                               "typeString": "uint256"
                             }
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-                          "src": "2894:31:2",
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                             "typeString": "uint256"
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@@ -5029,18 +5167,18 @@
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                                   "typeString": "function () view returns (address payable)"
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                                 "typeString": "address payable"
@@ -5056,12 +5194,12 @@
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@@ -5069,12 +5207,12 @@
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@@ -5082,12 +5220,12 @@
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@@ -5097,18 +5235,18 @@
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                                 "typeDescriptions": {
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+                                  "typeIdentifier": "t_type$_t_enum$_ClaimCase_$1094_$",
                                   "typeString": "type(enum IAKAP.ClaimCase)"
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@@ -5116,9 +5254,9 @@
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                               "typeDescriptions": {
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+                                "typeIdentifier": "t_enum$_ClaimCase_$1094",
                                 "typeString": "enum IAKAP.ClaimCase"
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@@ -5142,22 +5280,22 @@
                                 "typeString": "bytes calldata"
                               },
                               {
-                                "typeIdentifier": "t_enum$_ClaimCase_$1865",
+                                "typeIdentifier": "t_enum$_ClaimCase_$1094",
                                 "typeString": "enum IAKAP.ClaimCase"
                               }
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+                              "typeIdentifier": "t_function_event_nonpayable$_t_address_$_t_uint256_$_t_uint256_$_t_bytes_memory_ptr_$_t_enum$_ClaimCase_$1094_$returns$__$",
                               "typeString": "function (address,uint256,uint256,bytes memory,enum IAKAP.ClaimCase)"
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@@ -5165,28 +5303,28 @@
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@@ -5194,10 +5332,10 @@
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@@ -5206,14 +5344,14 @@
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@@ -5221,31 +5359,31 @@
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@@ -5292,19 +5430,19 @@
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@@ -5312,10 +5450,10 @@
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@@ -5325,95 +5463,164 @@
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@@ -5421,10 +5628,10 @@
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@@ -5434,19 +5641,19 @@
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@@ -5467,19 +5674,19 @@
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@@ -5490,18 +5697,18 @@
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@@ -5509,7 +5716,7 @@
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@@ -5517,12 +5724,12 @@
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@@ -5540,18 +5747,18 @@
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@@ -5559,37 +5766,37 @@
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@@ -5597,10 +5804,10 @@
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@@ -5610,19 +5817,19 @@
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@@ -5643,19 +5850,19 @@
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@@ -5780,10 +5987,10 @@
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@@ -5793,19 +6000,19 @@
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@@ -5813,10 +6020,10 @@
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                       "typeString": "uint256"
                     }
                   }
                 ],
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                   "overloadedDeclarations": [],
-                  "referencedDeclaration": 865,
-                  "src": "4723:12:2",
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+                  "src": "4765:12:0",
                   "typeDescriptions": {
                     "typeIdentifier": "t_modifier$_t_uint256_$",
                     "typeString": "modifier (uint256)"
                   }
                 },
                 "nodeType": "ModifierInvocation",
-                "src": "4723:20:2"
+                "src": "4765:20:0"
               }
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@@ -6513,10 +6720,10 @@
                     "typeString": "uint256"
                   },
                   "typeName": {
-                    "id": 1193,
+                    "id": 422,
                     "name": "uint",
                     "nodeType": "ElementaryTypeName",
-                    "src": "4696:4:2",
+                    "src": "4738:4:0",
                     "typeDescriptions": {
                       "typeIdentifier": "t_uint256",
                       "typeString": "uint256"
@@ -6526,19 +6733,19 @@
                   "visibility": "internal"
                 }
               ],
-              "src": "4695:13:2"
+              "src": "4737:13:0"
             },
             "returnParameters": {
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+                  "id": 429,
                   "name": "",
                   "nodeType": "VariableDeclaration",
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-                  "src": "4753:12:2",
+                  "scope": 437,
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@@ -6546,10 +6753,10 @@
                     "typeString": "bytes"
                   },
                   "typeName": {
-                    "id": 1199,
+                    "id": 428,
                     "name": "bytes",
                     "nodeType": "ElementaryTypeName",
-                    "src": "4753:5:2",
+                    "src": "4795:5:0",
                     "typeDescriptions": {
                       "typeIdentifier": "t_bytes_storage_ptr",
                       "typeString": "bytes"
@@ -6559,24 +6766,24 @@
                   "visibility": "internal"
                 }
               ],
-              "src": "4752:14:2"
+              "src": "4794:14:0"
             },
-            "scope": 1335,
-            "src": "4678:135:2",
+            "scope": 564,
+            "src": "4720:135:0",
             "stateMutability": "view",
-            "superFunction": 1989,
+            "superFunction": 1218,
             "visibility": "external"
           },
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-              "id": 1231,
+              "id": 460,
               "nodeType": "Block",
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               "statements": [
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@@ -6587,26 +6794,26 @@
                         "argumentTypes": null,
                         "baseExpression": {
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                           "name": "nodes",
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-                          "src": "4892:5:2",
+                          "referencedDeclaration": 22,
+                          "src": "4934:5:0",
                           "typeDescriptions": {
-                            "typeIdentifier": "t_mapping$_t_uint256_$_t_struct$_Node_$801_storage_$",
+                            "typeIdentifier": "t_mapping$_t_uint256_$_t_struct$_Node_$18_storage_$",
                             "typeString": "mapping(uint256 => struct AKAF.Node storage ref)"
                           }
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                           "overloadedDeclarations": [],
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+                          "src": "4940:6:0",
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                             "typeIdentifier": "t_uint256",
                             "typeString": "uint256"
@@ -6617,21 +6824,21 @@
                         "isPure": false,
                         "lValueRequested": false,
                         "nodeType": "IndexAccess",
-                        "src": "4892:13:2",
+                        "src": "4934:13:0",
                         "typeDescriptions": {
-                          "typeIdentifier": "t_struct$_Node_$801_storage",
+                          "typeIdentifier": "t_struct$_Node_$18_storage",
                           "typeString": "struct AKAF.Node storage ref"
                         }
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@@ -6641,26 +6848,26 @@
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                       "name": "now",
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-                      "src": "4915:3:2",
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                       "typeDescriptions": {
                         "typeIdentifier": "t_uint256",
                         "typeString": "uint256"
                       }
                     },
-                    "src": "4892:26:2",
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                       "typeIdentifier": "t_uint256",
                       "typeString": "uint256"
                     }
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                 {
                   "eventCall": {
@@ -6671,18 +6878,18 @@
                         "arguments": [],
                         "expression": {
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-                          "id": 1224,
+                          "id": 453,
                           "name": "_msgSender",
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-                          "src": "4950:10:2",
+                          "referencedDeclaration": 69,
+                          "src": "4992:10:0",
                           "typeDescriptions": {
                             "typeIdentifier": "t_function_internal_view$__$returns$_t_address_payable_$",
                             "typeString": "function () view returns (address payable)"
                           }
                         },
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@@ -6690,7 +6897,7 @@
                         "lValueRequested": false,
                         "names": [],
                         "nodeType": "FunctionCall",
-                        "src": "4950:12:2",
+                        "src": "4992:12:0",
                         "typeDescriptions": {
                           "typeIdentifier": "t_address_payable",
                           "typeString": "address payable"
@@ -6698,12 +6905,12 @@
                       },
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+                        "src": "5006:6:0",
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                           "typeString": "uint256"
@@ -6713,18 +6920,18 @@
                         "argumentTypes": null,
                         "expression": {
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                           "name": "NodeAttribute",
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+                          "referencedDeclaration": 1100,
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                           "typeDescriptions": {
-                            "typeIdentifier": "t_type$_t_enum$_NodeAttribute_$1871_$",
+                            "typeIdentifier": "t_type$_t_enum$_NodeAttribute_$1100_$",
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@@ -6732,9 +6939,9 @@
                         "memberName": "EXPIRY",
                         "nodeType": "MemberAccess",
                         "referencedDeclaration": null,
-                        "src": "4972:20:2",
+                        "src": "5014:20:0",
                         "typeDescriptions": {
-                          "typeIdentifier": "t_enum$_NodeAttribute_$1871",
+                          "typeIdentifier": "t_enum$_NodeAttribute_$1100",
                           "typeString": "enum IAKAP.NodeAttribute"
                         }
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@@ -6750,22 +6957,22 @@
                           "typeString": "uint256"
                         },
                         {
-                          "typeIdentifier": "t_enum$_NodeAttribute_$1871",
+                          "typeIdentifier": "t_enum$_NodeAttribute_$1100",
                           "typeString": "enum IAKAP.NodeAttribute"
                         }
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                       "typeDescriptions": {
-                        "typeIdentifier": "t_function_event_nonpayable$_t_address_$_t_uint256_$_t_enum$_NodeAttribute_$1871_$returns$__$",
+                        "typeIdentifier": "t_function_event_nonpayable$_t_address_$_t_uint256_$_t_enum$_NodeAttribute_$1100_$returns$__$",
                         "typeString": "function (address,uint256,enum IAKAP.NodeAttribute)"
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@@ -6773,20 +6980,20 @@
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                     "names": [],
                     "nodeType": "FunctionCall",
-                    "src": "4933:60:2",
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@@ -6794,49 +7001,49 @@
                 "arguments": [
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-                    "src": "4874:6:2",
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                       "typeString": "uint256"
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                 ],
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+                "id": 443,
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                   "name": "onlyApproved",
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-                  "src": "4861:12:2",
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+                  "src": "4903:12:0",
                   "typeDescriptions": {
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                     "typeString": "modifier (uint256)"
                   }
                 },
                 "nodeType": "ModifierInvocation",
-                "src": "4861:20:2"
+                "src": "4903:20:0"
               }
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             "nodeType": "FunctionDefinition",
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-                  "src": "4839:11:2",
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@@ -6844,10 +7051,10 @@
                     "typeString": "uint256"
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-                    "id": 1209,
+                    "id": 438,
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-                    "src": "4839:4:2",
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                       "typeString": "uint256"
@@ -6857,30 +7064,30 @@
                   "visibility": "internal"
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+            "src": "4861:181:0",
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@@ -6891,26 +7098,26 @@
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                         "baseExpression": {
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                           "name": "nodes",
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-                          "src": "5091:5:2",
+                          "referencedDeclaration": 22,
+                          "src": "5133:5:0",
                           "typeDescriptions": {
-                            "typeIdentifier": "t_mapping$_t_uint256_$_t_struct$_Node_$801_storage_$",
+                            "typeIdentifier": "t_mapping$_t_uint256_$_t_struct$_Node_$18_storage_$",
                             "typeString": "mapping(uint256 => struct AKAF.Node storage ref)"
                           }
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                             "typeString": "uint256"
@@ -6921,21 +7128,21 @@
                         "isPure": false,
                         "lValueRequested": false,
                         "nodeType": "IndexAccess",
-                        "src": "5091:13:2",
+                        "src": "5133:13:0",
                         "typeDescriptions": {
-                          "typeIdentifier": "t_struct$_Node_$801_storage",
+                          "typeIdentifier": "t_struct$_Node_$18_storage",
                           "typeString": "struct AKAF.Node storage ref"
                         }
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                         "typeString": "uint256"
@@ -6945,26 +7152,26 @@
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-                      "src": "5115:5:2",
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                         "typeString": "uint256"
                       }
                     },
-                    "src": "5091:29:2",
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                       "typeString": "uint256"
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                   "eventCall": {
@@ -6975,18 +7182,18 @@
                         "arguments": [],
                         "expression": {
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-                          "id": 1250,
+                          "id": 479,
                           "name": "_msgSender",
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-                          "src": "5152:10:2",
+                          "referencedDeclaration": 69,
+                          "src": "5194:10:0",
                           "typeDescriptions": {
                             "typeIdentifier": "t_function_internal_view$__$returns$_t_address_payable_$",
                             "typeString": "function () view returns (address payable)"
                           }
                         },
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@@ -6994,7 +7201,7 @@
                         "lValueRequested": false,
                         "names": [],
                         "nodeType": "FunctionCall",
-                        "src": "5152:12:2",
+                        "src": "5194:12:0",
                         "typeDescriptions": {
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                           "typeString": "address payable"
@@ -7002,12 +7209,12 @@
                       },
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+                        "src": "5208:6:0",
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                           "typeString": "uint256"
@@ -7017,18 +7224,18 @@
                         "argumentTypes": null,
                         "expression": {
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-                          "id": 1253,
+                          "id": 482,
                           "name": "NodeAttribute",
                           "nodeType": "Identifier",
                           "overloadedDeclarations": [],
-                          "referencedDeclaration": 1871,
-                          "src": "5174:13:2",
+                          "referencedDeclaration": 1100,
+                          "src": "5216:13:0",
                           "typeDescriptions": {
-                            "typeIdentifier": "t_type$_t_enum$_NodeAttribute_$1871_$",
+                            "typeIdentifier": "t_type$_t_enum$_NodeAttribute_$1100_$",
                             "typeString": "type(enum IAKAP.NodeAttribute)"
                           }
                         },
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@@ -7036,9 +7243,9 @@
                         "memberName": "SEE_ALSO",
                         "nodeType": "MemberAccess",
                         "referencedDeclaration": null,
-                        "src": "5174:22:2",
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                         "typeDescriptions": {
-                          "typeIdentifier": "t_enum$_NodeAttribute_$1871",
+                          "typeIdentifier": "t_enum$_NodeAttribute_$1100",
                           "typeString": "enum IAKAP.NodeAttribute"
                         }
                       }
@@ -7054,22 +7261,22 @@
                           "typeString": "uint256"
                         },
                         {
-                          "typeIdentifier": "t_enum$_NodeAttribute_$1871",
+                          "typeIdentifier": "t_enum$_NodeAttribute_$1100",
                           "typeString": "enum IAKAP.NodeAttribute"
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                       "name": "AttributeChanged",
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-                      "src": "5135:16:2",
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                       "typeDescriptions": {
-                        "typeIdentifier": "t_function_event_nonpayable$_t_address_$_t_uint256_$_t_enum$_NodeAttribute_$1871_$returns$__$",
+                        "typeIdentifier": "t_function_event_nonpayable$_t_address_$_t_uint256_$_t_enum$_NodeAttribute_$1100_$returns$__$",
                         "typeString": "function (address,uint256,enum IAKAP.NodeAttribute)"
                       }
                     },
-                    "id": 1255,
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@@ -7077,20 +7284,20 @@
                     "lValueRequested": false,
                     "names": [],
                     "nodeType": "FunctionCall",
-                    "src": "5135:62:2",
+                    "src": "5177:62:0",
                     "typeDescriptions": {
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                       "typeString": "tuple()"
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@@ -7098,49 +7305,49 @@
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-                    "src": "5073:6:2",
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                       "typeIdentifier": "t_uint256",
                       "typeString": "uint256"
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-                "id": 1240,
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+                  "src": "5102:12:0",
                   "typeDescriptions": {
                     "typeIdentifier": "t_modifier$_t_uint256_$",
                     "typeString": "modifier (uint256)"
                   }
                 },
                 "nodeType": "ModifierInvocation",
-                "src": "5060:20:2"
+                "src": "5102:20:0"
               }
             ],
             "name": "setSeeAlso",
             "nodeType": "FunctionDefinition",
             "parameters": {
-              "id": 1237,
+              "id": 466,
               "nodeType": "ParameterList",
               "parameters": [
                 {
                   "constant": false,
-                  "id": 1234,
+                  "id": 463,
                   "name": "nodeId",
                   "nodeType": "VariableDeclaration",
-                  "scope": 1258,
-                  "src": "5026:11:2",
+                  "scope": 487,
+                  "src": "5068:11:0",
                   "stateVariable": false,
                   "storageLocation": "default",
                   "typeDescriptions": {
@@ -7148,10 +7355,10 @@
                     "typeString": "uint256"
                   },
                   "typeName": {
-                    "id": 1233,
+                    "id": 462,
                     "name": "uint",
                     "nodeType": "ElementaryTypeName",
-                    "src": "5026:4:2",
+                    "src": "5068:4:0",
                     "typeDescriptions": {
                       "typeIdentifier": "t_uint256",
                       "typeString": "uint256"
@@ -7162,11 +7369,11 @@
                 },
                 {
                   "constant": false,
-                  "id": 1236,
+                  "id": 465,
                   "name": "value",
                   "nodeType": "VariableDeclaration",
-                  "scope": 1258,
-                  "src": "5039:10:2",
+                  "scope": 487,
+                  "src": "5081:10:0",
                   "stateVariable": false,
                   "storageLocation": "default",
                   "typeDescriptions": {
@@ -7174,10 +7381,10 @@
                     "typeString": "uint256"
                   },
                   "typeName": {
-                    "id": 1235,
+                    "id": 464,
                     "name": "uint",
                     "nodeType": "ElementaryTypeName",
-                    "src": "5039:4:2",
+                    "src": "5081:4:0",
                     "typeDescriptions": {
                       "typeIdentifier": "t_uint256",
                       "typeString": "uint256"
@@ -7187,30 +7394,30 @@
                   "visibility": "internal"
                 }
               ],
-              "src": "5025:25:2"
+              "src": "5067:25:0"
             },
             "returnParameters": {
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+              "id": 470,
               "nodeType": "ParameterList",
               "parameters": [],
-              "src": "5081:0:2"
+              "src": "5123:0:0"
             },
-            "scope": 1335,
-            "src": "5006:198:2",
+            "scope": 564,
+            "src": "5048:198:0",
             "stateMutability": "nonpayable",
-            "superFunction": 2008,
+            "superFunction": 1237,
             "visibility": "external"
           },
           {
             "body": {
-              "id": 1283,
+              "id": 512,
               "nodeType": "Block",
-              "src": "5291:129:2",
+              "src": "5333:129:0",
               "statements": [
                 {
                   "expression": {
                     "argumentTypes": null,
-                    "id": 1273,
+                    "id": 502,
                     "isConstant": false,
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@@ -7221,26 +7428,26 @@
                         "argumentTypes": null,
                         "baseExpression": {
                           "argumentTypes": null,
-                          "id": 1268,
+                          "id": 497,
                           "name": "nodes",
                           "nodeType": "Identifier",
                           "overloadedDeclarations": [],
-                          "referencedDeclaration": 805,
-                          "src": "5301:5:2",
+                          "referencedDeclaration": 22,
+                          "src": "5343:5:0",
                           "typeDescriptions": {
-                            "typeIdentifier": "t_mapping$_t_uint256_$_t_struct$_Node_$801_storage_$",
+                            "typeIdentifier": "t_mapping$_t_uint256_$_t_struct$_Node_$18_storage_$",
                             "typeString": "mapping(uint256 => struct AKAF.Node storage ref)"
                           }
                         },
-                        "id": 1270,
+                        "id": 499,
                         "indexExpression": {
                           "argumentTypes": null,
-                          "id": 1269,
+                          "id": 498,
                           "name": "nodeId",
                           "nodeType": "Identifier",
                           "overloadedDeclarations": [],
-                          "referencedDeclaration": 1260,
-                          "src": "5307:6:2",
+                          "referencedDeclaration": 489,
+                          "src": "5349:6:0",
                           "typeDescriptions": {
                             "typeIdentifier": "t_uint256",
                             "typeString": "uint256"
@@ -7251,21 +7458,21 @@
                         "isPure": false,
                         "lValueRequested": false,
                         "nodeType": "IndexAccess",
-                        "src": "5301:13:2",
+                        "src": "5343:13:0",
                         "typeDescriptions": {
-                          "typeIdentifier": "t_struct$_Node_$801_storage",
+                          "typeIdentifier": "t_struct$_Node_$18_storage",
                           "typeString": "struct AKAF.Node storage ref"
                         }
                       },
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+                      "id": 500,
                       "isConstant": false,
                       "isLValue": true,
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                       "lValueRequested": true,
                       "memberName": "seeAddress",
                       "nodeType": "MemberAccess",
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-                      "src": "5301:24:2",
+                      "referencedDeclaration": 15,
+                      "src": "5343:24:0",
                       "typeDescriptions": {
                         "typeIdentifier": "t_address",
                         "typeString": "address"
@@ -7275,26 +7482,26 @@
                     "operator": "=",
                     "rightHandSide": {
                       "argumentTypes": null,
-                      "id": 1272,
+                      "id": 501,
                       "name": "value",
                       "nodeType": "Identifier",
                       "overloadedDeclarations": [],
-                      "referencedDeclaration": 1262,
-                      "src": "5328:5:2",
+                      "referencedDeclaration": 491,
+                      "src": "5370:5:0",
                       "typeDescriptions": {
                         "typeIdentifier": "t_address",
                         "typeString": "address"
                       }
                     },
-                    "src": "5301:32:2",
+                    "src": "5343:32:0",
                     "typeDescriptions": {
                       "typeIdentifier": "t_address",
                       "typeString": "address"
                     }
                   },
-                  "id": 1274,
+                  "id": 503,
                   "nodeType": "ExpressionStatement",
-                  "src": "5301:32:2"
+                  "src": "5343:32:0"
                 },
                 {
                   "eventCall": {
@@ -7305,18 +7512,18 @@
                         "arguments": [],
                         "expression": {
                           "argumentTypes": [],
-                          "id": 1276,
+                          "id": 505,
                           "name": "_msgSender",
                           "nodeType": "Identifier",
                           "overloadedDeclarations": [],
-                          "referencedDeclaration": 852,
-                          "src": "5365:10:2",
+                          "referencedDeclaration": 69,
+                          "src": "5407:10:0",
                           "typeDescriptions": {
                             "typeIdentifier": "t_function_internal_view$__$returns$_t_address_payable_$",
                             "typeString": "function () view returns (address payable)"
                           }
                         },
-                        "id": 1277,
+                        "id": 506,
                         "isConstant": false,
                         "isLValue": false,
                         "isPure": false,
@@ -7324,7 +7531,7 @@
                         "lValueRequested": false,
                         "names": [],
                         "nodeType": "FunctionCall",
-                        "src": "5365:12:2",
+                        "src": "5407:12:0",
                         "typeDescriptions": {
                           "typeIdentifier": "t_address_payable",
                           "typeString": "address payable"
@@ -7332,12 +7539,12 @@
                       },
                       {
                         "argumentTypes": null,
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+                        "id": 507,
                         "name": "nodeId",
                         "nodeType": "Identifier",
                         "overloadedDeclarations": [],
-                        "referencedDeclaration": 1260,
-                        "src": "5379:6:2",
+                        "referencedDeclaration": 489,
+                        "src": "5421:6:0",
                         "typeDescriptions": {
                           "typeIdentifier": "t_uint256",
                           "typeString": "uint256"
@@ -7347,18 +7554,18 @@
                         "argumentTypes": null,
                         "expression": {
                           "argumentTypes": null,
-                          "id": 1279,
+                          "id": 508,
                           "name": "NodeAttribute",
                           "nodeType": "Identifier",
                           "overloadedDeclarations": [],
-                          "referencedDeclaration": 1871,
-                          "src": "5387:13:2",
+                          "referencedDeclaration": 1100,
+                          "src": "5429:13:0",
                           "typeDescriptions": {
-                            "typeIdentifier": "t_type$_t_enum$_NodeAttribute_$1871_$",
+                            "typeIdentifier": "t_type$_t_enum$_NodeAttribute_$1100_$",
                             "typeString": "type(enum IAKAP.NodeAttribute)"
                           }
                         },
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+                        "id": 509,
                         "isConstant": false,
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@@ -7366,9 +7573,9 @@
                         "memberName": "SEE_ADDRESS",
                         "nodeType": "MemberAccess",
                         "referencedDeclaration": null,
-                        "src": "5387:25:2",
+                        "src": "5429:25:0",
                         "typeDescriptions": {
-                          "typeIdentifier": "t_enum$_NodeAttribute_$1871",
+                          "typeIdentifier": "t_enum$_NodeAttribute_$1100",
                           "typeString": "enum IAKAP.NodeAttribute"
                         }
                       }
@@ -7384,22 +7591,22 @@
                           "typeString": "uint256"
                         },
                         {
-                          "typeIdentifier": "t_enum$_NodeAttribute_$1871",
+                          "typeIdentifier": "t_enum$_NodeAttribute_$1100",
                           "typeString": "enum IAKAP.NodeAttribute"
                         }
                       ],
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                       "name": "AttributeChanged",
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-                      "referencedDeclaration": 1891,
-                      "src": "5348:16:2",
+                      "referencedDeclaration": 1120,
+                      "src": "5390:16:0",
                       "typeDescriptions": {
-                        "typeIdentifier": "t_function_event_nonpayable$_t_address_$_t_uint256_$_t_enum$_NodeAttribute_$1871_$returns$__$",
+                        "typeIdentifier": "t_function_event_nonpayable$_t_address_$_t_uint256_$_t_enum$_NodeAttribute_$1100_$returns$__$",
                         "typeString": "function (address,uint256,enum IAKAP.NodeAttribute)"
                       }
                     },
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@@ -7407,20 +7614,20 @@
                     "lValueRequested": false,
                     "names": [],
                     "nodeType": "FunctionCall",
-                    "src": "5348:65:2",
+                    "src": "5390:65:0",
                     "typeDescriptions": {
                       "typeIdentifier": "t_tuple$__$",
                       "typeString": "tuple()"
                     }
                   },
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-                  "src": "5343:70:2"
+                  "src": "5385:70:0"
                 }
               ]
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@@ -7428,49 +7635,49 @@
                 "arguments": [
                   {
                     "argumentTypes": null,
-                    "id": 1265,
+                    "id": 494,
                     "name": "nodeId",
                     "nodeType": "Identifier",
                     "overloadedDeclarations": [],
-                    "referencedDeclaration": 1260,
-                    "src": "5283:6:2",
+                    "referencedDeclaration": 489,
+                    "src": "5325:6:0",
                     "typeDescriptions": {
                       "typeIdentifier": "t_uint256",
                       "typeString": "uint256"
                     }
                   }
                 ],
-                "id": 1266,
+                "id": 495,
                 "modifierName": {
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-                  "id": 1264,
+                  "id": 493,
                   "name": "onlyApproved",
                   "nodeType": "Identifier",
                   "overloadedDeclarations": [],
-                  "referencedDeclaration": 884,
-                  "src": "5270:12:2",
+                  "referencedDeclaration": 109,
+                  "src": "5312:12:0",
                   "typeDescriptions": {
                     "typeIdentifier": "t_modifier$_t_uint256_$",
                     "typeString": "modifier (uint256)"
                   }
                 },
                 "nodeType": "ModifierInvocation",
-                "src": "5270:20:2"
+                "src": "5312:20:0"
               }
             ],
             "name": "setSeeAddress",
             "nodeType": "FunctionDefinition",
             "parameters": {
-              "id": 1263,
+              "id": 492,
               "nodeType": "ParameterList",
               "parameters": [
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                   "constant": false,
-                  "id": 1260,
+                  "id": 489,
                   "name": "nodeId",
                   "nodeType": "VariableDeclaration",
-                  "scope": 1284,
-                  "src": "5233:11:2",
+                  "scope": 513,
+                  "src": "5275:11:0",
                   "stateVariable": false,
                   "storageLocation": "default",
                   "typeDescriptions": {
@@ -7478,10 +7685,10 @@
                     "typeString": "uint256"
                   },
                   "typeName": {
-                    "id": 1259,
+                    "id": 488,
                     "name": "uint",
                     "nodeType": "ElementaryTypeName",
-                    "src": "5233:4:2",
+                    "src": "5275:4:0",
                     "typeDescriptions": {
                       "typeIdentifier": "t_uint256",
                       "typeString": "uint256"
@@ -7492,11 +7699,11 @@
                 },
                 {
                   "constant": false,
-                  "id": 1262,
+                  "id": 491,
                   "name": "value",
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-                  "scope": 1284,
-                  "src": "5246:13:2",
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+                  "src": "5288:13:0",
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                   "typeDescriptions": {
@@ -7504,10 +7711,10 @@
                     "typeString": "address"
                   },
                   "typeName": {
-                    "id": 1261,
+                    "id": 490,
                     "name": "address",
                     "nodeType": "ElementaryTypeName",
-                    "src": "5246:7:2",
+                    "src": "5288:7:0",
                     "stateMutability": "nonpayable",
                     "typeDescriptions": {
                       "typeIdentifier": "t_address",
@@ -7518,30 +7725,30 @@
                   "visibility": "internal"
                 }
               ],
-              "src": "5232:28:2"
+              "src": "5274:28:0"
             },
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+              "id": 496,
               "nodeType": "ParameterList",
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-              "src": "5291:0:2"
+              "src": "5333:0:0"
             },
-            "scope": 1335,
-            "src": "5210:210:2",
+            "scope": 564,
+            "src": "5252:210:0",
             "stateMutability": "nonpayable",
-            "superFunction": 2015,
+            "superFunction": 1244,
             "visibility": "external"
           },
           {
             "body": {
-              "id": 1309,
+              "id": 538,
               "nodeType": "Block",
-              "src": "5512:125:2",
+              "src": "5554:125:0",
               "statements": [
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-                    "id": 1299,
+                    "id": 528,
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                     "isPure": false,
@@ -7552,26 +7759,26 @@
                         "argumentTypes": null,
                         "baseExpression": {
                           "argumentTypes": null,
-                          "id": 1294,
+                          "id": 523,
                           "name": "nodes",
                           "nodeType": "Identifier",
                           "overloadedDeclarations": [],
-                          "referencedDeclaration": 805,
-                          "src": "5522:5:2",
+                          "referencedDeclaration": 22,
+                          "src": "5564:5:0",
                           "typeDescriptions": {
-                            "typeIdentifier": "t_mapping$_t_uint256_$_t_struct$_Node_$801_storage_$",
+                            "typeIdentifier": "t_mapping$_t_uint256_$_t_struct$_Node_$18_storage_$",
                             "typeString": "mapping(uint256 => struct AKAF.Node storage ref)"
                           }
                         },
-                        "id": 1296,
+                        "id": 525,
                         "indexExpression": {
                           "argumentTypes": null,
-                          "id": 1295,
+                          "id": 524,
                           "name": "nodeId",
                           "nodeType": "Identifier",
                           "overloadedDeclarations": [],
-                          "referencedDeclaration": 1286,
-                          "src": "5528:6:2",
+                          "referencedDeclaration": 515,
+                          "src": "5570:6:0",
                           "typeDescriptions": {
                             "typeIdentifier": "t_uint256",
                             "typeString": "uint256"
@@ -7582,21 +7789,21 @@
                         "isPure": false,
                         "lValueRequested": false,
                         "nodeType": "IndexAccess",
-                        "src": "5522:13:2",
+                        "src": "5564:13:0",
                         "typeDescriptions": {
-                          "typeIdentifier": "t_struct$_Node_$801_storage",
+                          "typeIdentifier": "t_struct$_Node_$18_storage",
                           "typeString": "struct AKAF.Node storage ref"
                         }
                       },
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+                      "id": 526,
                       "isConstant": false,
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                       "lValueRequested": true,
                       "memberName": "nodeBody",
                       "nodeType": "MemberAccess",
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-                      "src": "5522:22:2",
+                      "referencedDeclaration": 17,
+                      "src": "5564:22:0",
                       "typeDescriptions": {
                         "typeIdentifier": "t_bytes_storage",
                         "typeString": "bytes storage ref"
@@ -7606,26 +7813,26 @@
                     "operator": "=",
                     "rightHandSide": {
                       "argumentTypes": null,
-                      "id": 1298,
+                      "id": 527,
                       "name": "value",
                       "nodeType": "Identifier",
                       "overloadedDeclarations": [],
-                      "referencedDeclaration": 1288,
-                      "src": "5547:5:2",
+                      "referencedDeclaration": 517,
+                      "src": "5589:5:0",
                       "typeDescriptions": {
                         "typeIdentifier": "t_bytes_calldata_ptr",
                         "typeString": "bytes calldata"
                       }
                     },
-                    "src": "5522:30:2",
+                    "src": "5564:30:0",
                     "typeDescriptions": {
                       "typeIdentifier": "t_bytes_storage",
                       "typeString": "bytes storage ref"
                     }
                   },
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+                  "id": 529,
                   "nodeType": "ExpressionStatement",
-                  "src": "5522:30:2"
+                  "src": "5564:30:0"
                 },
                 {
                   "eventCall": {
@@ -7636,18 +7843,18 @@
                         "arguments": [],
                         "expression": {
                           "argumentTypes": [],
-                          "id": 1302,
+                          "id": 531,
                           "name": "_msgSender",
                           "nodeType": "Identifier",
                           "overloadedDeclarations": [],
-                          "referencedDeclaration": 852,
-                          "src": "5584:10:2",
+                          "referencedDeclaration": 69,
+                          "src": "5626:10:0",
                           "typeDescriptions": {
                             "typeIdentifier": "t_function_internal_view$__$returns$_t_address_payable_$",
                             "typeString": "function () view returns (address payable)"
                           }
                         },
-                        "id": 1303,
+                        "id": 532,
                         "isConstant": false,
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                         "isPure": false,
@@ -7655,7 +7862,7 @@
                         "lValueRequested": false,
                         "names": [],
                         "nodeType": "FunctionCall",
-                        "src": "5584:12:2",
+                        "src": "5626:12:0",
                         "typeDescriptions": {
                           "typeIdentifier": "t_address_payable",
                           "typeString": "address payable"
@@ -7663,12 +7870,12 @@
                       },
                       {
                         "argumentTypes": null,
-                        "id": 1304,
+                        "id": 533,
                         "name": "nodeId",
                         "nodeType": "Identifier",
                         "overloadedDeclarations": [],
-                        "referencedDeclaration": 1286,
-                        "src": "5598:6:2",
+                        "referencedDeclaration": 515,
+                        "src": "5640:6:0",
                         "typeDescriptions": {
                           "typeIdentifier": "t_uint256",
                           "typeString": "uint256"
@@ -7678,18 +7885,18 @@
                         "argumentTypes": null,
                         "expression": {
                           "argumentTypes": null,
-                          "id": 1305,
+                          "id": 534,
                           "name": "NodeAttribute",
                           "nodeType": "Identifier",
                           "overloadedDeclarations": [],
-                          "referencedDeclaration": 1871,
-                          "src": "5606:13:2",
+                          "referencedDeclaration": 1100,
+                          "src": "5648:13:0",
                           "typeDescriptions": {
-                            "typeIdentifier": "t_type$_t_enum$_NodeAttribute_$1871_$",
+                            "typeIdentifier": "t_type$_t_enum$_NodeAttribute_$1100_$",
                             "typeString": "type(enum IAKAP.NodeAttribute)"
                           }
                         },
-                        "id": 1306,
+                        "id": 535,
                         "isConstant": false,
                         "isLValue": false,
                         "isPure": true,
@@ -7697,9 +7904,9 @@
                         "memberName": "NODE_BODY",
                         "nodeType": "MemberAccess",
                         "referencedDeclaration": null,
-                        "src": "5606:23:2",
+                        "src": "5648:23:0",
                         "typeDescriptions": {
-                          "typeIdentifier": "t_enum$_NodeAttribute_$1871",
+                          "typeIdentifier": "t_enum$_NodeAttribute_$1100",
                           "typeString": "enum IAKAP.NodeAttribute"
                         }
                       }
@@ -7715,22 +7922,22 @@
                           "typeString": "uint256"
                         },
                         {
-                          "typeIdentifier": "t_enum$_NodeAttribute_$1871",
+                          "typeIdentifier": "t_enum$_NodeAttribute_$1100",
                           "typeString": "enum IAKAP.NodeAttribute"
                         }
                       ],
-                      "id": 1301,
+                      "id": 530,
                       "name": "AttributeChanged",
                       "nodeType": "Identifier",
                       "overloadedDeclarations": [],
-                      "referencedDeclaration": 1891,
-                      "src": "5567:16:2",
+                      "referencedDeclaration": 1120,
+                      "src": "5609:16:0",
                       "typeDescriptions": {
-                        "typeIdentifier": "t_function_event_nonpayable$_t_address_$_t_uint256_$_t_enum$_NodeAttribute_$1871_$returns$__$",
+                        "typeIdentifier": "t_function_event_nonpayable$_t_address_$_t_uint256_$_t_enum$_NodeAttribute_$1100_$returns$__$",
                         "typeString": "function (address,uint256,enum IAKAP.NodeAttribute)"
                       }
                     },
-                    "id": 1307,
+                    "id": 536,
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                     "isPure": false,
@@ -7738,20 +7945,20 @@
                     "lValueRequested": false,
                     "names": [],
                     "nodeType": "FunctionCall",
-                    "src": "5567:63:2",
+                    "src": "5609:63:0",
                     "typeDescriptions": {
                       "typeIdentifier": "t_tuple$__$",
                       "typeString": "tuple()"
                     }
                   },
-                  "id": 1308,
+                  "id": 537,
                   "nodeType": "EmitStatement",
-                  "src": "5562:68:2"
+                  "src": "5604:68:0"
                 }
               ]
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+            "id": 539,
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@@ -7759,49 +7966,49 @@
                 "arguments": [
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                     "argumentTypes": null,
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+                    "id": 520,
                     "name": "nodeId",
                     "nodeType": "Identifier",
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-                    "referencedDeclaration": 1286,
-                    "src": "5504:6:2",
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+                    "src": "5546:6:0",
                     "typeDescriptions": {
                       "typeIdentifier": "t_uint256",
                       "typeString": "uint256"
                     }
                   }
                 ],
-                "id": 1292,
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                     "typeString": "modifier (uint256)"
                   }
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-                "src": "5491:20:2"
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@@ -7809,10 +8016,10 @@
                     "typeString": "uint256"
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@@ -7823,11 +8030,11 @@
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@@ -7835,10 +8042,10 @@
                     "typeString": "bytes"
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@@ -7848,25 +8055,25 @@
                   "visibility": "internal"
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@@ -7874,12 +8081,12 @@
                     "arguments": [
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                         "argumentTypes": null,
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                         "overloadedDeclarations": [],
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-                        "src": "5751:6:2",
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@@ -7887,12 +8094,12 @@
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@@ -7910,18 +8117,18 @@
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@@ -7929,15 +8136,15 @@
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@@ -7948,18 +8155,18 @@
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@@ -7967,7 +8174,7 @@
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@@ -7975,12 +8182,12 @@
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@@ -7990,18 +8197,18 @@
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                           "typeDescriptions": {
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@@ -8009,9 +8216,9 @@
                         "memberName": "TOKEN_URI",
                         "nodeType": "MemberAccess",
                         "referencedDeclaration": null,
-                        "src": "5817:23:2",
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                         "typeDescriptions": {
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                           "typeString": "enum IAKAP.NodeAttribute"
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@@ -8027,22 +8234,22 @@
                           "typeString": "uint256"
                         },
                         {
-                          "typeIdentifier": "t_enum$_NodeAttribute_$1871",
+                          "typeIdentifier": "t_enum$_NodeAttribute_$1100",
                           "typeString": "enum IAKAP.NodeAttribute"
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@@ -8050,20 +8257,20 @@
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-                    "src": "5778:63:2",
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@@ -8071,49 +8278,49 @@
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-                "src": "5707:20:2"
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@@ -8121,10 +8328,10 @@
                     "typeString": "uint256"
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@@ -8135,11 +8342,11 @@
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@@ -8147,10 +8354,10 @@
                     "typeString": "string"
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@@ -8160,39 +8367,39 @@
                   "visibility": "internal"
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-            "src": "5643:205:2",
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             "visibility": "external"
           }
         ],
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-        "src": "737:5113:2"
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+        "src": "737:5155:0"
       }
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-    "src": "627:5223:2"
+    "src": "627:5265:0"
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     "absolutePath": "/private/tmp/eth/akap/contracts/AKAF.sol",
     "exportedSymbols": {
       "AKAF": [
-        1335
+        564
       ]
     },
-    "id": 1336,
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     "nodeType": "SourceUnit",
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@@ -8200,27 +8407,27 @@
           ".0"
         ],
         "nodeType": "PragmaDirective",
-        "src": "627:23:2"
+        "src": "627:23:0"
       },
       {
         "absolutePath": "/private/tmp/eth/akap/contracts/IAKAP.sol",
         "file": "./IAKAP.sol",
-        "id": 785,
+        "id": 2,
         "nodeType": "ImportDirective",
-        "scope": 1336,
-        "sourceUnit": 2090,
-        "src": "652:21:2",
+        "scope": 565,
+        "sourceUnit": 1319,
+        "src": "652:21:0",
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       {
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         "file": "@openzeppelin/contracts/token/ERC721/ERC721Full.sol",
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@@ -8230,82 +8437,82 @@
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             "baseName": {
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+              "id": 4,
               "name": "IAKAP",
               "nodeType": "UserDefinedTypeName",
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-              "src": "754:5:2",
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+              "src": "754:5:0",
               "typeDescriptions": {
-                "typeIdentifier": "t_contract$_IAKAP_$2089",
+                "typeIdentifier": "t_contract$_IAKAP_$1318",
                 "typeString": "contract IAKAP"
               }
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+            "id": 5,
             "nodeType": "InheritanceSpecifier",
-            "src": "754:5:2"
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             "arguments": null,
             "baseName": {
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+              "id": 6,
               "name": "ERC721Full",
               "nodeType": "UserDefinedTypeName",
-              "referencedDeclaration": 3316,
-              "src": "761:10:2",
+              "referencedDeclaration": 2545,
+              "src": "761:10:0",
               "typeDescriptions": {
-                "typeIdentifier": "t_contract$_ERC721Full_$3316",
+                "typeIdentifier": "t_contract$_ERC721Full_$2545",
                 "typeString": "contract ERC721Full"
               }
             },
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           {
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             "members": [
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@@ -8313,10 +8520,10 @@
                   "typeString": "uint256"
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@@ -8327,11 +8534,11 @@
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@@ -8339,10 +8546,10 @@
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@@ -8353,11 +8560,11 @@
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@@ -8365,10 +8572,10 @@
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@@ -8379,11 +8586,11 @@
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@@ -8391,10 +8598,10 @@
                   "typeString": "address"
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@@ -8406,11 +8613,11 @@
               },
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@@ -8418,10 +8625,10 @@
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@@ -8433,50 +8640,50 @@
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-              "typeIdentifier": "t_mapping$_t_uint256_$_t_struct$_Node_$801_storage_$",
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+                "typeIdentifier": "t_mapping$_t_uint256_$_t_struct$_Node_$18_storage_$",
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@@ -8509,10 +8716,10 @@
                         "typeString": "uint256"
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+                        "id": 29,
                         "name": "uint",
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@@ -8522,18 +8729,18 @@
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@@ -8542,7 +8749,7 @@
                     "value": "0"
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@@ -8553,18 +8760,18 @@
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                             "typeIdentifier": "t_function_internal_view$__$returns$_t_address_payable_$",
                             "typeString": "function () view returns (address payable)"
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@@ -8572,7 +8779,7 @@
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                           "typeString": "address payable"
@@ -8580,12 +8787,12 @@
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@@ -8603,20 +8810,20 @@
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@@ -8624,20 +8831,20 @@
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@@ -8648,26 +8855,26 @@
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@@ -8678,21 +8885,21 @@
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+                          "typeIdentifier": "t_struct$_Node_$18_storage",
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@@ -8745,20 +8952,20 @@
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@@ -8766,21 +8973,21 @@
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@@ -8791,18 +8998,18 @@
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@@ -8818,12 +9025,12 @@
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@@ -8831,12 +9038,12 @@
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-                            "typeIdentifier": "t_type$_t_enum$_ClaimCase_$1865_$",
+                            "typeIdentifier": "t_type$_t_enum$_ClaimCase_$1094_$",
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@@ -8883,9 +9090,9 @@
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                         "typeDescriptions": {
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+                          "typeIdentifier": "t_enum$_ClaimCase_$1094",
                           "typeString": "enum IAKAP.ClaimCase"
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@@ -8909,22 +9116,22 @@
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                         },
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-                          "typeIdentifier": "t_enum$_ClaimCase_$1865",
+                          "typeIdentifier": "t_enum$_ClaimCase_$1094",
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+                        "typeIdentifier": "t_function_event_nonpayable$_t_address_$_t_uint256_$_t_uint256_$_t_bytes_memory_ptr_$_t_enum$_ClaimCase_$1094_$returns$__$",
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@@ -8988,67 +9195,67 @@
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@@ -9100,10 +9307,10 @@
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@@ -9114,19 +9321,19 @@
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@@ -9272,10 +9548,10 @@
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@@ -9285,16 +9561,16 @@
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@@ -9481,21 +9826,21 @@
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@@ -9503,38 +9848,38 @@
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@@ -9542,10 +9887,10 @@
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@@ -9555,16 +9900,16 @@
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@@ -9587,7 +9932,7 @@
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@@ -9596,18 +9941,18 @@
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@@ -9615,7 +9960,7 @@
                             "memberName": "length",
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@@ -9626,14 +9971,14 @@
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@@ -9641,7 +9986,7 @@
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@@ -9655,7 +10000,7 @@
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@@ -9664,18 +10009,18 @@
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@@ -9694,14 +10039,14 @@
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@@ -9709,13 +10054,13 @@
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@@ -10070,7 +10415,7 @@
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@@ -10184,37 +10529,37 @@
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@@ -10281,10 +10626,10 @@
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@@ -10294,32 +10639,32 @@
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+              "id": 326,
               "nodeType": "Block",
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+                    169
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-                      "src": "2504:11:2",
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@@ -10327,10 +10672,10 @@
                         "typeString": "uint256"
                       },
                       "typeName": {
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+                        "id": 168,
                         "name": "uint",
                         "nodeType": "ElementaryTypeName",
-                        "src": "2504:4:2",
+                        "src": "2532:4:0",
                         "typeDescriptions": {
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                           "typeString": "uint256"
@@ -10340,18 +10685,18 @@
                       "visibility": "internal"
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                         "overloadedDeclarations": [],
-                        "referencedDeclaration": 936,
-                        "src": "2525:8:2",
+                        "referencedDeclaration": 161,
+                        "src": "2553:8:0",
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                           "typeString": "uint256"
@@ -10359,12 +10704,12 @@
                       },
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                         "name": "label",
                         "nodeType": "Identifier",
                         "overloadedDeclarations": [],
-                        "referencedDeclaration": 938,
-                        "src": "2535:5:2",
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                           "typeIdentifier": "t_bytes_calldata_ptr",
                           "typeString": "bytes calldata"
@@ -10382,20 +10727,20 @@
                           "typeString": "bytes calldata"
                         }
                       ],
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+                        159
                       ],
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+                      "src": "2546:6:0",
                       "typeDescriptions": {
                         "typeIdentifier": "t_function_internal_pure$_t_uint256_$_t_bytes_memory_ptr_$returns$_t_uint256_$",
                         "typeString": "function (uint256,bytes memory) pure returns (uint256)"
                       }
                     },
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@@ -10403,27 +10748,27 @@
                     "lValueRequested": false,
                     "names": [],
                     "nodeType": "FunctionCall",
-                    "src": "2518:23:2",
+                    "src": "2546:23:0",
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                       "typeIdentifier": "t_uint256",
                       "typeString": "uint256"
                     }
                   },
                   "nodeType": "VariableDeclarationStatement",
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+                  "src": "2532:37:0"
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+                    176
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+                      "src": "2580:18:0",
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@@ -10431,10 +10776,10 @@
                         "typeString": "bool"
                       },
                       "typeName": {
-                        "id": 950,
+                        "id": 175,
                         "name": "bool",
                         "nodeType": "ElementaryTypeName",
-                        "src": "2552:4:2",
+                        "src": "2580:4:0",
                         "typeDescriptions": {
                           "typeIdentifier": "t_bool",
                           "typeString": "bool"
@@ -10444,7 +10789,7 @@
                       "visibility": "internal"
                     }
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@@ -10453,18 +10798,18 @@
                         "arguments": [],
                         "expression": {
                           "argumentTypes": [],
-                          "id": 953,
+                          "id": 178,
                           "name": "_msgSender",
                           "nodeType": "Identifier",
                           "overloadedDeclarations": [],
-                          "referencedDeclaration": 852,
-                          "src": "2592:10:2",
+                          "referencedDeclaration": 69,
+                          "src": "2620:10:0",
                           "typeDescriptions": {
                             "typeIdentifier": "t_function_internal_view$__$returns$_t_address_payable_$",
                             "typeString": "function () view returns (address payable)"
                           }
                         },
-                        "id": 954,
+                        "id": 179,
                         "isConstant": false,
                         "isLValue": false,
                         "isPure": false,
@@ -10472,7 +10817,7 @@
                         "lValueRequested": false,
                         "names": [],
                         "nodeType": "FunctionCall",
-                        "src": "2592:12:2",
+                        "src": "2620:12:0",
                         "typeDescriptions": {
                           "typeIdentifier": "t_address_payable",
                           "typeString": "address payable"
@@ -10480,12 +10825,12 @@
                       },
                       {
                         "argumentTypes": null,
-                        "id": 955,
+                        "id": 180,
                         "name": "parentId",
                         "nodeType": "Identifier",
                         "overloadedDeclarations": [],
-                        "referencedDeclaration": 936,
-                        "src": "2606:8:2",
+                        "referencedDeclaration": 161,
+                        "src": "2634:8:0",
                         "typeDescriptions": {
                           "typeIdentifier": "t_uint256",
                           "typeString": "uint256"
@@ -10503,18 +10848,18 @@
                           "typeString": "uint256"
                         }
                       ],
-                      "id": 952,
+                      "id": 177,
                       "name": "_isApprovedOrOwner",
                       "nodeType": "Identifier",
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-                      "src": "2573:18:2",
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+                      "src": "2601:18:0",
                       "typeDescriptions": {
                         "typeIdentifier": "t_function_internal_view$_t_address_$_t_uint256_$returns$_t_bool_$",
                         "typeString": "function (address,uint256) view returns (bool)"
                       }
                     },
-                    "id": 956,
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@@ -10522,27 +10867,27 @@
                     "lValueRequested": false,
                     "names": [],
                     "nodeType": "FunctionCall",
-                    "src": "2573:42:2",
+                    "src": "2601:42:0",
                     "typeDescriptions": {
                       "typeIdentifier": "t_bool",
                       "typeString": "bool"
                     }
                   },
                   "nodeType": "VariableDeclarationStatement",
-                  "src": "2552:63:2"
+                  "src": "2580:63:0"
                 },
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-                      "src": "2625:15:2",
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+                      "src": "2653:15:0",
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                       "typeDescriptions": {
@@ -10550,10 +10895,10 @@
                         "typeString": "bool"
                       },
                       "typeName": {
-                        "id": 958,
+                        "id": 183,
                         "name": "bool",
                         "nodeType": "ElementaryTypeName",
-                        "src": "2625:4:2",
+                        "src": "2653:4:0",
                         "typeDescriptions": {
                           "typeIdentifier": "t_bool",
                           "typeString": "bool"
@@ -10563,18 +10908,18 @@
                       "visibility": "internal"
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                       {
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                         "name": "nodeId",
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                         "overloadedDeclarations": [],
-                        "referencedDeclaration": 944,
-                        "src": "2651:6:2",
+                        "referencedDeclaration": 169,
+                        "src": "2679:6:0",
                         "typeDescriptions": {
                           "typeIdentifier": "t_uint256",
                           "typeString": "uint256"
@@ -10588,18 +10933,18 @@
                           "typeString": "uint256"
                         }
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-                      "src": "2643:7:2",
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                         "typeIdentifier": "t_function_internal_view$_t_uint256_$returns$_t_bool_$",
                         "typeString": "function (uint256) view returns (bool)"
                       }
                     },
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@@ -10607,14 +10952,14 @@
                     "lValueRequested": false,
                     "names": [],
                     "nodeType": "FunctionCall",
-                    "src": "2643:15:2",
+                    "src": "2671:15:0",
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                       "typeIdentifier": "t_bool",
                       "typeString": "bool"
                     }
                   },
                   "nodeType": "VariableDeclarationStatement",
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+                  "src": "2653:33:0"
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                   "condition": {
@@ -10623,19 +10968,19 @@
                       "typeIdentifier": "t_bool",
                       "typeString": "bool"
                     },
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+                    "id": 195,
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                     "leftExpression": {
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@@ -10651,18 +10996,18 @@
                           "arguments": [],
                           "expression": {
                             "argumentTypes": [],
-                            "id": 966,
+                            "id": 191,
                             "name": "_msgSender",
                             "nodeType": "Identifier",
                             "overloadedDeclarations": [],
-                            "referencedDeclaration": 852,
-                            "src": "2706:10:2",
+                            "referencedDeclaration": 69,
+                            "src": "2734:10:0",
                             "typeDescriptions": {
                               "typeIdentifier": "t_function_internal_view$__$returns$_t_address_payable_$",
                               "typeString": "function () view returns (address payable)"
                             }
                           },
-                          "id": 967,
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@@ -10670,7 +11015,7 @@
                           "lValueRequested": false,
                           "names": [],
                           "nodeType": "FunctionCall",
-                          "src": "2706:12:2",
+                          "src": "2734:12:0",
                           "typeDescriptions": {
                             "typeIdentifier": "t_address_payable",
                             "typeString": "address payable"
@@ -10678,12 +11023,12 @@
                         },
                         {
                           "argumentTypes": null,
-                          "id": 968,
+                          "id": 193,
                           "name": "nodeId",
                           "nodeType": "Identifier",
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+                          "referencedDeclaration": 169,
+                          "src": "2748:6:0",
                           "typeDescriptions": {
                             "typeIdentifier": "t_uint256",
                             "typeString": "uint256"
@@ -10701,18 +11046,18 @@
                             "typeString": "uint256"
                           }
                         ],
-                        "id": 965,
+                        "id": 190,
                         "name": "_isApprovedOrOwner",
                         "nodeType": "Identifier",
                         "overloadedDeclarations": [],
-                        "referencedDeclaration": 2734,
-                        "src": "2687:18:2",
+                        "referencedDeclaration": 1963,
+                        "src": "2715:18:0",
                         "typeDescriptions": {
                           "typeIdentifier": "t_function_internal_view$_t_address_$_t_uint256_$returns$_t_bool_$",
                           "typeString": "function (address,uint256) view returns (bool)"
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                       },
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+                      "id": 194,
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@@ -10720,13 +11065,13 @@
                       "lValueRequested": false,
                       "names": [],
                       "nodeType": "FunctionCall",
-                      "src": "2687:40:2",
+                      "src": "2715:40:0",
                       "typeDescriptions": {
                         "typeIdentifier": "t_bool",
                         "typeString": "bool"
                       }
                     },
-                    "src": "2673:54:2",
+                    "src": "2701:54:0",
                     "typeDescriptions": {
                       "typeIdentifier": "t_bool",
                       "typeString": "bool"
@@ -10739,14 +11084,14 @@
                         "typeIdentifier": "t_bool",
                         "typeString": "bool"
                       },
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                       "lValueRequested": false,
                       "leftExpression": {
                         "argumentTypes": null,
-                        "id": 1005,
+                        "id": 230,
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@@ -10754,15 +11099,15 @@
                         "nodeType": "UnaryOperation",
                         "operator": "!",
                         "prefix": true,
-                        "src": "3051:11:2",
+                        "src": "3079:11:0",
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+                          "id": 229,
                           "name": "nodeExists",
                           "nodeType": "Identifier",
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-                          "src": "3052:10:2",
+                          "referencedDeclaration": 184,
+                          "src": "3080:10:0",
                           "typeDescriptions": {
                             "typeIdentifier": "t_bool",
                             "typeString": "bool"
@@ -10777,18 +11122,18 @@
                       "operator": "&&",
                       "rightExpression": {
                         "argumentTypes": null,
-                        "id": 1006,
+                        "id": 231,
                         "name": "isParentOwner",
                         "nodeType": "Identifier",
                         "overloadedDeclarations": [],
-                        "referencedDeclaration": 951,
-                        "src": "3066:13:2",
+                        "referencedDeclaration": 176,
+                        "src": "3094:13:0",
                         "typeDescriptions": {
                           "typeIdentifier": "t_bool",
                           "typeString": "bool"
                         }
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-                      "src": "3051:28:2",
+                      "src": "3079:28:0",
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                         "typeString": "bool"
@@ -10801,7 +11146,7 @@
                           "typeIdentifier": "t_bool",
                           "typeString": "bool"
                         },
-                        "id": 1053,
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@@ -10812,19 +11157,19 @@
                             "typeIdentifier": "t_bool",
                             "typeString": "bool"
                           },
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                             "name": "nodeExists",
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-                            "referencedDeclaration": 959,
-                            "src": "3393:10:2",
+                            "referencedDeclaration": 184,
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                             "typeDescriptions": {
                               "typeIdentifier": "t_bool",
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@@ -10838,7 +11183,7 @@
                               "typeIdentifier": "t_uint256",
                               "typeString": "uint256"
                             },
-                            "id": 1050,
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@@ -10849,26 +11194,26 @@
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-                                  "id": 1045,
+                                  "id": 270,
                                   "name": "nodes",
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-                                  "referencedDeclaration": 805,
-                                  "src": "3407:5:2",
+                                  "referencedDeclaration": 22,
+                                  "src": "3435:5:0",
                                   "typeDescriptions": {
-                                    "typeIdentifier": "t_mapping$_t_uint256_$_t_struct$_Node_$801_storage_$",
+                                    "typeIdentifier": "t_mapping$_t_uint256_$_t_struct$_Node_$18_storage_$",
                                     "typeString": "mapping(uint256 => struct AKAF.Node storage ref)"
                                   }
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                                   "nodeType": "Identifier",
                                   "overloadedDeclarations": [],
-                                  "referencedDeclaration": 944,
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+                                  "src": "3441:6:0",
                                   "typeDescriptions": {
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                                     "typeString": "uint256"
@@ -10879,21 +11224,21 @@
                                 "isPure": false,
                                 "lValueRequested": false,
                                 "nodeType": "IndexAccess",
-                                "src": "3407:13:2",
+                                "src": "3435:13:0",
                                 "typeDescriptions": {
-                                  "typeIdentifier": "t_struct$_Node_$801_storage",
+                                  "typeIdentifier": "t_struct$_Node_$18_storage",
                                   "typeString": "struct AKAF.Node storage ref"
                                 }
                               },
-                              "id": 1048,
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                               "memberName": "expiry",
                               "nodeType": "MemberAccess",
-                              "referencedDeclaration": 794,
-                              "src": "3407:20:2",
+                              "referencedDeclaration": 11,
+                              "src": "3435:20:0",
                               "typeDescriptions": {
                                 "typeIdentifier": "t_uint256",
                                 "typeString": "uint256"
@@ -10903,24 +11248,24 @@
                             "operator": "<=",
                             "rightExpression": {
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-                              "id": 1049,
+                              "id": 274,
                               "name": "now",
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                               "overloadedDeclarations": [],
-                              "referencedDeclaration": 3650,
-                              "src": "3431:3:2",
+                              "referencedDeclaration": 2879,
+                              "src": "3459:3:0",
                               "typeDescriptions": {
                                 "typeIdentifier": "t_uint256",
                                 "typeString": "uint256"
                               }
                             },
-                            "src": "3407:27:2",
+                            "src": "3435:27:0",
                             "typeDescriptions": {
                               "typeIdentifier": "t_bool",
                               "typeString": "bool"
                             }
                           },
-                          "src": "3393:41:2",
+                          "src": "3421:41:0",
                           "typeDescriptions": {
                             "typeIdentifier": "t_bool",
                             "typeString": "bool"
@@ -10930,31 +11275,31 @@
                         "operator": "&&",
                         "rightExpression": {
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-                          "id": 1052,
+                          "id": 277,
                           "name": "isParentOwner",
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-                          "referencedDeclaration": 951,
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+                          "src": "3466:13:0",
                           "typeDescriptions": {
                             "typeIdentifier": "t_bool",
                             "typeString": "bool"
                           }
                         },
-                        "src": "3393:58:2",
+                        "src": "3421:58:0",
                         "typeDescriptions": {
                           "typeIdentifier": "t_bool",
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                         }
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                       "trueBody": {
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                         "nodeType": "Block",
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@@ -10966,19 +11311,19 @@
                                     "typeIdentifier": "t_uint256",
                                     "typeString": "uint256"
                                   },
-                                  "id": 1060,
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+                                    "id": 280,
                                     "name": "parentId",
                                     "nodeType": "Identifier",
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-                                    "src": "3475:8:2",
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+                                    "src": "3503:8:0",
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                                       "typeString": "uint256"
@@ -10992,26 +11337,26 @@
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+                                        "referencedDeclaration": 22,
+                                        "src": "3515:5:0",
                                         "typeDescriptions": {
-                                          "typeIdentifier": "t_mapping$_t_uint256_$_t_struct$_Node_$801_storage_$",
+                                          "typeIdentifier": "t_mapping$_t_uint256_$_t_struct$_Node_$18_storage_$",
                                           "typeString": "mapping(uint256 => struct AKAF.Node storage ref)"
                                         }
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                                           "typeIdentifier": "t_uint256",
                                           "typeString": "uint256"
@@ -11022,27 +11367,27 @@
                                       "isPure": false,
                                       "lValueRequested": false,
                                       "nodeType": "IndexAccess",
-                                      "src": "3487:13:2",
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                                       "typeDescriptions": {
-                                        "typeIdentifier": "t_struct$_Node_$801_storage",
+                                        "typeIdentifier": "t_struct$_Node_$18_storage",
                                         "typeString": "struct AKAF.Node storage ref"
                                       }
                                     },
-                                    "id": 1059,
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                                     "memberName": "parentId",
                                     "nodeType": "MemberAccess",
-                                    "referencedDeclaration": 792,
-                                    "src": "3487:22:2",
+                                    "referencedDeclaration": 9,
+                                    "src": "3515:22:0",
                                     "typeDescriptions": {
                                       "typeIdentifier": "t_uint256",
                                       "typeString": "uint256"
                                     }
                                   },
-                                  "src": "3475:34:2",
+                                  "src": "3503:34:0",
                                   "typeDescriptions": {
                                     "typeIdentifier": "t_bool",
                                     "typeString": "bool"
@@ -11051,14 +11396,14 @@
                                 {
                                   "argumentTypes": null,
                                   "hexValue": "414b41503a20496e76616c696420706172656e742068617368",
-                                  "id": 1061,
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                                   "lValueRequested": false,
                                   "nodeType": "Literal",
-                                  "src": "3511:27:2",
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@@ -11078,21 +11423,21 @@
                                     "typeString": "literal_string \"AKAP: Invalid parent hash\""
                                   }
                                 ],
-                                "id": 1054,
+                                "id": 279,
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                                 "nodeType": "Identifier",
                                 "overloadedDeclarations": [
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-                                  3652
+                                  2880,
+                                  2881
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-                                "src": "3467:7:2",
+                                "referencedDeclaration": 2881,
+                                "src": "3495:7:0",
                                 "typeDescriptions": {
                                   "typeIdentifier": "t_function_require_pure$_t_bool_$_t_string_memory_ptr_$returns$__$",
                                   "typeString": "function (bool,string memory) pure"
                                 }
                               },
-                              "id": 1062,
+                              "id": 287,
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@@ -11100,15 +11445,15 @@
                               "lValueRequested": false,
                               "names": [],
                               "nodeType": "FunctionCall",
-                              "src": "3467:72:2",
+                              "src": "3495:72:0",
                               "typeDescriptions": {
                                 "typeIdentifier": "t_tuple$__$",
                                 "typeString": "tuple()"
                               }
                             },
-                            "id": 1063,
+                            "id": 288,
                             "nodeType": "ExpressionStatement",
-                            "src": "3467:72:2"
+                            "src": "3495:72:0"
                           },
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                             "expression": {
@@ -11119,12 +11464,12 @@
                                   "arguments": [
                                     {
                                       "argumentTypes": null,
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+                                      "id": 291,
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                                       "typeDescriptions": {
                                         "typeIdentifier": "t_uint256",
                                         "typeString": "uint256"
@@ -11138,20 +11483,20 @@
                                         "typeString": "uint256"
                                       }
                                     ],
-                                    "id": 1065,
+                                    "id": 290,
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                                     "nodeType": "Identifier",
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+                                      1720
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+                                    "referencedDeclaration": 1720,
+                                    "src": "3677:7:0",
                                     "typeDescriptions": {
                                       "typeIdentifier": "t_function_internal_view$_t_uint256_$returns$_t_address_$",
                                       "typeString": "function (uint256) view returns (address)"
                                     }
                                   },
-                                  "id": 1067,
+                                  "id": 292,
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@@ -11159,7 +11504,7 @@
                                   "lValueRequested": false,
                                   "names": [],
                                   "nodeType": "FunctionCall",
-                                  "src": "3649:15:2",
+                                  "src": "3677:15:0",
                                   "typeDescriptions": {
                                     "typeIdentifier": "t_address",
                                     "typeString": "address"
@@ -11170,18 +11515,18 @@
                                   "arguments": [],
                                   "expression": {
                                     "argumentTypes": [],
-                                    "id": 1068,
+                                    "id": 293,
                                     "name": "_msgSender",
                                     "nodeType": "Identifier",
                                     "overloadedDeclarations": [],
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-                                    "src": "3666:10:2",
+                                    "referencedDeclaration": 69,
+                                    "src": "3694:10:0",
                                     "typeDescriptions": {
                                       "typeIdentifier": "t_function_internal_view$__$returns$_t_address_payable_$",
                                       "typeString": "function () view returns (address payable)"
                                     }
                                   },
-                                  "id": 1069,
+                                  "id": 294,
                                   "isConstant": false,
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@@ -11189,7 +11534,7 @@
                                   "lValueRequested": false,
                                   "names": [],
                                   "nodeType": "FunctionCall",
-                                  "src": "3666:12:2",
+                                  "src": "3694:12:0",
                                   "typeDescriptions": {
                                     "typeIdentifier": "t_address_payable",
                                     "typeString": "address payable"
@@ -11197,12 +11542,12 @@
                                 },
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-                                  "id": 1070,
+                                  "id": 295,
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                                   "nodeType": "Identifier",
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-                                  "referencedDeclaration": 944,
-                                  "src": "3680:6:2",
+                                  "referencedDeclaration": 169,
+                                  "src": "3708:6:0",
                                   "typeDescriptions": {
                                     "typeIdentifier": "t_uint256",
                                     "typeString": "uint256"
@@ -11224,20 +11569,20 @@
                                     "typeString": "uint256"
                                   }
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-                                "id": 1064,
+                                "id": 289,
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+                                  2304
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+                                "referencedDeclaration": 2304,
+                                "src": "3663:13:0",
                                 "typeDescriptions": {
                                   "typeIdentifier": "t_function_internal_nonpayable$_t_address_$_t_address_$_t_uint256_$returns$__$",
                                   "typeString": "function (address,address,uint256)"
                                 }
                               },
-                              "id": 1071,
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@@ -11245,20 +11590,20 @@
                               "lValueRequested": false,
                               "names": [],
                               "nodeType": "FunctionCall",
-                              "src": "3635:52:2",
+                              "src": "3663:52:0",
                               "typeDescriptions": {
                                 "typeIdentifier": "t_tuple$__$",
                                 "typeString": "tuple()"
                               }
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                             "nodeType": "ExpressionStatement",
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@@ -11269,26 +11614,26 @@
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+                                    "referencedDeclaration": 22,
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                                     "typeDescriptions": {
-                                      "typeIdentifier": "t_mapping$_t_uint256_$_t_struct$_Node_$801_storage_$",
+                                      "typeIdentifier": "t_mapping$_t_uint256_$_t_struct$_Node_$18_storage_$",
                                       "typeString": "mapping(uint256 => struct AKAF.Node storage ref)"
                                     }
                                   },
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+                                    "id": 299,
                                     "name": "nodeId",
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                                     "typeDescriptions": {
                                       "typeIdentifier": "t_uint256",
                                       "typeString": "uint256"
@@ -11299,21 +11644,21 @@
                                   "isPure": false,
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                                   "nodeType": "IndexAccess",
-                                  "src": "3701:13:2",
+                                  "src": "3729:13:0",
                                   "typeDescriptions": {
-                                    "typeIdentifier": "t_struct$_Node_$801_storage",
+                                    "typeIdentifier": "t_struct$_Node_$18_storage",
                                     "typeString": "struct AKAF.Node storage ref"
                                   }
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                                 "memberName": "expiry",
                                 "nodeType": "MemberAccess",
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-                                "src": "3701:20:2",
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                                   "typeString": "uint256"
@@ -11326,7 +11671,7 @@
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@@ -11334,18 +11679,18 @@
                                     "nodeType": "UnaryOperation",
                                     "operator": "-",
                                     "prefix": true,
-                                    "src": "3729:2:2",
+                                    "src": "3757:2:0",
                                     "subExpression": {
                                       "argumentTypes": null,
                                       "hexValue": "31",
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                                       "kind": "number",
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                                       "nodeType": "Literal",
-                                      "src": "3730:1:2",
+                                      "src": "3758:1:0",
                                       "subdenomination": null,
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@@ -11366,20 +11711,20 @@
                                       "typeString": "int_const -1"
                                     }
                                   ],
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+                                  "id": 302,
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                                   "isPure": true,
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                                   "nodeType": "ElementaryTypeNameExpression",
-                                  "src": "3724:4:2",
+                                  "src": "3752:4:0",
                                   "typeDescriptions": {
                                     "typeIdentifier": "t_type$_t_uint256_$",
                                     "typeString": "type(uint256)"
                                   },
                                   "typeName": "uint"
                                 },
-                                "id": 1080,
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@@ -11387,21 +11732,21 @@
                                 "lValueRequested": false,
                                 "names": [],
                                 "nodeType": "FunctionCall",
-                                "src": "3724:8:2",
+                                "src": "3752:8:0",
                                 "typeDescriptions": {
                                   "typeIdentifier": "t_uint256",
                                   "typeString": "uint256"
                                 }
                               },
-                              "src": "3701:31:2",
+                              "src": "3729:31:0",
                               "typeDescriptions": {
                                 "typeIdentifier": "t_uint256",
                                 "typeString": "uint256"
                               }
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                           {
                             "eventCall": {
@@ -11412,18 +11757,18 @@
                                   "arguments": [],
                                   "expression": {
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-                                    "id": 1084,
+                                    "id": 309,
                                     "name": "_msgSender",
                                     "nodeType": "Identifier",
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-                                    "referencedDeclaration": 852,
-                                    "src": "3757:10:2",
+                                    "referencedDeclaration": 69,
+                                    "src": "3785:10:0",
                                     "typeDescriptions": {
                                       "typeIdentifier": "t_function_internal_view$__$returns$_t_address_payable_$",
                                       "typeString": "function () view returns (address payable)"
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@@ -11431,7 +11776,7 @@
                                   "lValueRequested": false,
                                   "names": [],
                                   "nodeType": "FunctionCall",
-                                  "src": "3757:12:2",
+                                  "src": "3785:12:0",
                                   "typeDescriptions": {
                                     "typeIdentifier": "t_address_payable",
                                     "typeString": "address payable"
@@ -11439,12 +11784,12 @@
                                 },
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+                                  "src": "3799:6:0",
                                   "typeDescriptions": {
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                                     "typeString": "uint256"
@@ -11452,12 +11797,12 @@
                                 },
                                 {
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+                                  "id": 312,
                                   "name": "parentId",
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-                                  "src": "3779:8:2",
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+                                  "src": "3807:8:0",
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                                     "typeString": "uint256"
@@ -11465,12 +11810,12 @@
                                 },
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+                                  "id": 313,
                                   "name": "label",
                                   "nodeType": "Identifier",
                                   "overloadedDeclarations": [],
-                                  "referencedDeclaration": 938,
-                                  "src": "3789:5:2",
+                                  "referencedDeclaration": 163,
+                                  "src": "3817:5:0",
                                   "typeDescriptions": {
                                     "typeIdentifier": "t_bytes_calldata_ptr",
                                     "typeString": "bytes calldata"
@@ -11480,18 +11825,18 @@
                                   "argumentTypes": null,
                                   "expression": {
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-                                    "id": 1089,
+                                    "id": 314,
                                     "name": "ClaimCase",
                                     "nodeType": "Identifier",
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-                                    "src": "3796:9:2",
+                                    "referencedDeclaration": 1094,
+                                    "src": "3824:9:0",
                                     "typeDescriptions": {
-                                      "typeIdentifier": "t_type$_t_enum$_ClaimCase_$1865_$",
+                                      "typeIdentifier": "t_type$_t_enum$_ClaimCase_$1094_$",
                                       "typeString": "type(enum IAKAP.ClaimCase)"
                                     }
                                   },
-                                  "id": 1090,
+                                  "id": 315,
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@@ -11499,9 +11844,9 @@
                                   "memberName": "TRANSFER",
                                   "nodeType": "MemberAccess",
                                   "referencedDeclaration": null,
-                                  "src": "3796:18:2",
+                                  "src": "3824:18:0",
                                   "typeDescriptions": {
-                                    "typeIdentifier": "t_enum$_ClaimCase_$1865",
+                                    "typeIdentifier": "t_enum$_ClaimCase_$1094",
                                     "typeString": "enum IAKAP.ClaimCase"
                                   }
                                 }
@@ -11525,22 +11870,22 @@
                                     "typeString": "bytes calldata"
                                   },
                                   {
-                                    "typeIdentifier": "t_enum$_ClaimCase_$1865",
+                                    "typeIdentifier": "t_enum$_ClaimCase_$1094",
                                     "typeString": "enum IAKAP.ClaimCase"
                                   }
                                 ],
-                                "id": 1083,
+                                "id": 308,
                                 "name": "Claim",
                                 "nodeType": "Identifier",
                                 "overloadedDeclarations": [],
-                                "referencedDeclaration": 1883,
-                                "src": "3751:5:2",
+                                "referencedDeclaration": 1112,
+                                "src": "3779:5:0",
                                 "typeDescriptions": {
-                                  "typeIdentifier": "t_function_event_nonpayable$_t_address_$_t_uint256_$_t_uint256_$_t_bytes_memory_ptr_$_t_enum$_ClaimCase_$1865_$returns$__$",
+                                  "typeIdentifier": "t_function_event_nonpayable$_t_address_$_t_uint256_$_t_uint256_$_t_bytes_memory_ptr_$_t_enum$_ClaimCase_$1094_$returns$__$",
                                   "typeString": "function (address,uint256,uint256,bytes memory,enum IAKAP.ClaimCase)"
                                 }
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@@ -11548,28 +11893,28 @@
                               "lValueRequested": false,
                               "names": [],
                               "nodeType": "FunctionCall",
-                              "src": "3751:64:2",
+                              "src": "3779:64:0",
                               "typeDescriptions": {
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                                 "typeString": "tuple()"
                               }
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-                            "id": 1092,
+                            "id": 317,
                             "nodeType": "EmitStatement",
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                           },
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                               "kind": "number",
                               "lValueRequested": false,
                               "nodeType": "Literal",
-                              "src": "3837:1:2",
+                              "src": "3865:1:0",
                               "subdenomination": null,
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@@ -11577,21 +11922,21 @@
                               },
                               "value": "3"
                             },
-                            "functionReturnParameters": 942,
-                            "id": 1094,
+                            "functionReturnParameters": 167,
+                            "id": 319,
                             "nodeType": "Return",
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                           }
                         ]
                       }
                     },
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@@ -11602,18 +11947,18 @@
                                 "arguments": [],
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+                                  "id": 234,
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-                                  "src": "3158:10:2",
+                                  "referencedDeclaration": 69,
+                                  "src": "3186:10:0",
                                   "typeDescriptions": {
                                     "typeIdentifier": "t_function_internal_view$__$returns$_t_address_payable_$",
                                     "typeString": "function () view returns (address payable)"
                                   }
                                 },
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@@ -11621,7 +11966,7 @@
                                 "lValueRequested": false,
                                 "names": [],
                                 "nodeType": "FunctionCall",
-                                "src": "3158:12:2",
+                                "src": "3186:12:0",
                                 "typeDescriptions": {
                                   "typeIdentifier": "t_address_payable",
                                   "typeString": "address payable"
@@ -11629,12 +11974,12 @@
                               },
                               {
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-                                "id": 1011,
+                                "id": 236,
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+                                "src": "3200:6:0",
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                                   "typeString": "uint256"
@@ -11652,20 +11997,20 @@
                                   "typeString": "uint256"
                                 }
                               ],
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+                                2328
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+                              "referencedDeclaration": 2328,
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                               "typeDescriptions": {
                                 "typeIdentifier": "t_function_internal_nonpayable$_t_address_$_t_uint256_$returns$__$",
                                 "typeString": "function (address,uint256)"
                               }
                             },
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@@ -11673,20 +12018,20 @@
                             "lValueRequested": false,
                             "names": [],
                             "nodeType": "FunctionCall",
-                            "src": "3152:27:2",
+                            "src": "3180:27:0",
                             "typeDescriptions": {
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                               "typeString": "tuple()"
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+                          "id": 238,
                           "nodeType": "ExpressionStatement",
-                          "src": "3152:27:2"
+                          "src": "3180:27:0"
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                         {
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@@ -11697,26 +12042,26 @@
                                 "argumentTypes": null,
                                 "baseExpression": {
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-                                  "id": 1014,
+                                  "id": 239,
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                                   "nodeType": "Identifier",
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-                                  "referencedDeclaration": 805,
-                                  "src": "3193:5:2",
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+                                  "src": "3221:5:0",
                                   "typeDescriptions": {
-                                    "typeIdentifier": "t_mapping$_t_uint256_$_t_struct$_Node_$801_storage_$",
+                                    "typeIdentifier": "t_mapping$_t_uint256_$_t_struct$_Node_$18_storage_$",
                                     "typeString": "mapping(uint256 => struct AKAF.Node storage ref)"
                                   }
                                 },
-                                "id": 1016,
+                                "id": 241,
                                 "indexExpression": {
                                   "argumentTypes": null,
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+                                  "id": 240,
                                   "name": "nodeId",
                                   "nodeType": "Identifier",
                                   "overloadedDeclarations": [],
-                                  "referencedDeclaration": 944,
-                                  "src": "3199:6:2",
+                                  "referencedDeclaration": 169,
+                                  "src": "3227:6:0",
                                   "typeDescriptions": {
                                     "typeIdentifier": "t_uint256",
                                     "typeString": "uint256"
@@ -11727,21 +12072,21 @@
                                 "isPure": false,
                                 "lValueRequested": false,
                                 "nodeType": "IndexAccess",
-                                "src": "3193:13:2",
+                                "src": "3221:13:0",
                                 "typeDescriptions": {
-                                  "typeIdentifier": "t_struct$_Node_$801_storage",
+                                  "typeIdentifier": "t_struct$_Node_$18_storage",
                                   "typeString": "struct AKAF.Node storage ref"
                                 }
                               },
-                              "id": 1017,
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                               "memberName": "parentId",
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-                              "src": "3193:22:2",
+                              "referencedDeclaration": 9,
+                              "src": "3221:22:0",
                               "typeDescriptions": {
                                 "typeIdentifier": "t_uint256",
                                 "typeString": "uint256"
@@ -11751,31 +12096,31 @@
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                             "rightHandSide": {
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-                              "src": "3218:8:2",
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                               "typeDescriptions": {
                                 "typeIdentifier": "t_uint256",
                                 "typeString": "uint256"
                               }
                             },
-                            "src": "3193:33:2",
+                            "src": "3221:33:0",
                             "typeDescriptions": {
                               "typeIdentifier": "t_uint256",
                               "typeString": "uint256"
                             }
                           },
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+                          "id": 245,
                           "nodeType": "ExpressionStatement",
-                          "src": "3193:33:2"
+                          "src": "3221:33:0"
                         },
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+                            "id": 254,
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@@ -11786,26 +12131,26 @@
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                                   "nodeType": "Identifier",
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+                                  "referencedDeclaration": 22,
+                                  "src": "3268:5:0",
                                   "typeDescriptions": {
-                                    "typeIdentifier": "t_mapping$_t_uint256_$_t_struct$_Node_$801_storage_$",
+                                    "typeIdentifier": "t_mapping$_t_uint256_$_t_struct$_Node_$18_storage_$",
                                     "typeString": "mapping(uint256 => struct AKAF.Node storage ref)"
                                   }
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+                                "id": 248,
                                 "indexExpression": {
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+                                  "id": 247,
                                   "name": "nodeId",
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-                                  "src": "3246:6:2",
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+                                  "src": "3274:6:0",
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                                     "typeIdentifier": "t_uint256",
                                     "typeString": "uint256"
@@ -11816,21 +12161,21 @@
                                 "isPure": false,
                                 "lValueRequested": false,
                                 "nodeType": "IndexAccess",
-                                "src": "3240:13:2",
+                                "src": "3268:13:0",
                                 "typeDescriptions": {
-                                  "typeIdentifier": "t_struct$_Node_$801_storage",
+                                  "typeIdentifier": "t_struct$_Node_$18_storage",
                                   "typeString": "struct AKAF.Node storage ref"
                                 }
                               },
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                               "memberName": "expiry",
                               "nodeType": "MemberAccess",
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-                              "src": "3240:20:2",
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+                              "src": "3268:20:0",
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                                 "typeIdentifier": "t_uint256",
                                 "typeString": "uint256"
@@ -11843,7 +12188,7 @@
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                                 {
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@@ -11851,18 +12196,18 @@
                                   "nodeType": "UnaryOperation",
                                   "operator": "-",
                                   "prefix": true,
-                                  "src": "3268:2:2",
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                                     "hexValue": "31",
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-                                    "src": "3269:1:2",
+                                    "src": "3297:1:0",
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@@ -11883,20 +12228,20 @@
                                     "typeString": "int_const -1"
                                   }
                                 ],
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+                                "id": 250,
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                                 "nodeType": "ElementaryTypeNameExpression",
-                                "src": "3263:4:2",
+                                "src": "3291:4:0",
                                 "typeDescriptions": {
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                                   "typeString": "type(uint256)"
                                 },
                                 "typeName": "uint"
                               },
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@@ -11904,21 +12249,21 @@
                               "lValueRequested": false,
                               "names": [],
                               "nodeType": "FunctionCall",
-                              "src": "3263:8:2",
+                              "src": "3291:8:0",
                               "typeDescriptions": {
                                 "typeIdentifier": "t_uint256",
                                 "typeString": "uint256"
                               }
                             },
-                            "src": "3240:31:2",
+                            "src": "3268:31:0",
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                               "typeString": "uint256"
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                           "nodeType": "ExpressionStatement",
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+                          "src": "3268:31:0"
                         },
                         {
                           "eventCall": {
@@ -11929,18 +12274,18 @@
                                 "arguments": [],
                                 "expression": {
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-                                  "id": 1032,
+                                  "id": 257,
                                   "name": "_msgSender",
                                   "nodeType": "Identifier",
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-                                  "src": "3296:10:2",
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+                                  "src": "3324:10:0",
                                   "typeDescriptions": {
                                     "typeIdentifier": "t_function_internal_view$__$returns$_t_address_payable_$",
                                     "typeString": "function () view returns (address payable)"
                                   }
                                 },
-                                "id": 1033,
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@@ -11948,7 +12293,7 @@
                                 "lValueRequested": false,
                                 "names": [],
                                 "nodeType": "FunctionCall",
-                                "src": "3296:12:2",
+                                "src": "3324:12:0",
                                 "typeDescriptions": {
                                   "typeIdentifier": "t_address_payable",
                                   "typeString": "address payable"
@@ -11956,12 +12301,12 @@
                               },
                               {
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-                                "id": 1034,
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                                 "typeDescriptions": {
                                   "typeIdentifier": "t_uint256",
                                   "typeString": "uint256"
@@ -11969,12 +12314,12 @@
                               },
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                                   "typeString": "uint256"
@@ -11982,12 +12327,12 @@
                               },
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                                 "name": "label",
                                 "nodeType": "Identifier",
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-                                "referencedDeclaration": 938,
-                                "src": "3328:5:2",
+                                "referencedDeclaration": 163,
+                                "src": "3356:5:0",
                                 "typeDescriptions": {
                                   "typeIdentifier": "t_bytes_calldata_ptr",
                                   "typeString": "bytes calldata"
@@ -11997,18 +12342,18 @@
                                 "argumentTypes": null,
                                 "expression": {
                                   "argumentTypes": null,
-                                  "id": 1037,
+                                  "id": 262,
                                   "name": "ClaimCase",
                                   "nodeType": "Identifier",
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-                                  "referencedDeclaration": 1865,
-                                  "src": "3335:9:2",
+                                  "referencedDeclaration": 1094,
+                                  "src": "3363:9:0",
                                   "typeDescriptions": {
-                                    "typeIdentifier": "t_type$_t_enum$_ClaimCase_$1865_$",
+                                    "typeIdentifier": "t_type$_t_enum$_ClaimCase_$1094_$",
                                     "typeString": "type(enum IAKAP.ClaimCase)"
                                   }
                                 },
-                                "id": 1038,
+                                "id": 263,
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@@ -12016,9 +12361,9 @@
                                 "memberName": "NEW",
                                 "nodeType": "MemberAccess",
                                 "referencedDeclaration": null,
-                                "src": "3335:13:2",
+                                "src": "3363:13:0",
                                 "typeDescriptions": {
-                                  "typeIdentifier": "t_enum$_ClaimCase_$1865",
+                                  "typeIdentifier": "t_enum$_ClaimCase_$1094",
                                   "typeString": "enum IAKAP.ClaimCase"
                                 }
                               }
@@ -12042,22 +12387,22 @@
                                   "typeString": "bytes calldata"
                                 },
                                 {
-                                  "typeIdentifier": "t_enum$_ClaimCase_$1865",
+                                  "typeIdentifier": "t_enum$_ClaimCase_$1094",
                                   "typeString": "enum IAKAP.ClaimCase"
                                 }
                               ],
-                              "id": 1031,
+                              "id": 256,
                               "name": "Claim",
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-                              "referencedDeclaration": 1883,
-                              "src": "3290:5:2",
+                              "referencedDeclaration": 1112,
+                              "src": "3318:5:0",
                               "typeDescriptions": {
-                                "typeIdentifier": "t_function_event_nonpayable$_t_address_$_t_uint256_$_t_uint256_$_t_bytes_memory_ptr_$_t_enum$_ClaimCase_$1865_$returns$__$",
+                                "typeIdentifier": "t_function_event_nonpayable$_t_address_$_t_uint256_$_t_uint256_$_t_bytes_memory_ptr_$_t_enum$_ClaimCase_$1094_$returns$__$",
                                 "typeString": "function (address,uint256,uint256,bytes memory,enum IAKAP.ClaimCase)"
                               }
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@@ -12065,28 +12410,28 @@
                             "lValueRequested": false,
                             "names": [],
                             "nodeType": "FunctionCall",
-                            "src": "3290:59:2",
+                            "src": "3318:59:0",
                             "typeDescriptions": {
                               "typeIdentifier": "t_tuple$__$",
                               "typeString": "tuple()"
                             }
                           },
-                          "id": 1040,
+                          "id": 265,
                           "nodeType": "EmitStatement",
-                          "src": "3285:64:2"
+                          "src": "3313:64:0"
                         },
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                             "hexValue": "32",
-                            "id": 1041,
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                             "kind": "number",
                             "lValueRequested": false,
                             "nodeType": "Literal",
-                            "src": "3371:1:2",
+                            "src": "3399:1:0",
                             "subdenomination": null,
                             "typeDescriptions": {
                               "typeIdentifier": "t_rational_2_by_1",
@@ -12094,21 +12439,21 @@
                             },
                             "value": "2"
                           },
-                          "functionReturnParameters": 942,
-                          "id": 1042,
+                          "functionReturnParameters": 167,
+                          "id": 267,
                           "nodeType": "Return",
-                          "src": "3364:8:2"
+                          "src": "3392:8:0"
                         }
                       ]
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                       {
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@@ -12120,19 +12465,19 @@
                                 "typeIdentifier": "t_uint256",
                                 "typeString": "uint256"
                               },
-                              "id": 977,
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                               "leftExpression": {
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-                                "id": 972,
+                                "id": 197,
                                 "name": "parentId",
                                 "nodeType": "Identifier",
                                 "overloadedDeclarations": [],
-                                "referencedDeclaration": 936,
-                                "src": "2751:8:2",
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                                 "typeDescriptions": {
                                   "typeIdentifier": "t_uint256",
                                   "typeString": "uint256"
@@ -12146,26 +12491,26 @@
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+                                    "id": 198,
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+                                    "referencedDeclaration": 22,
+                                    "src": "2791:5:0",
                                     "typeDescriptions": {
-                                      "typeIdentifier": "t_mapping$_t_uint256_$_t_struct$_Node_$801_storage_$",
+                                      "typeIdentifier": "t_mapping$_t_uint256_$_t_struct$_Node_$18_storage_$",
                                       "typeString": "mapping(uint256 => struct AKAF.Node storage ref)"
                                     }
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-                                    "referencedDeclaration": 944,
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+                                    "referencedDeclaration": 169,
+                                    "src": "2797:6:0",
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                                       "typeString": "uint256"
@@ -12176,27 +12521,27 @@
                                   "isPure": false,
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                                   "nodeType": "IndexAccess",
-                                  "src": "2763:13:2",
+                                  "src": "2791:13:0",
                                   "typeDescriptions": {
-                                    "typeIdentifier": "t_struct$_Node_$801_storage",
+                                    "typeIdentifier": "t_struct$_Node_$18_storage",
                                     "typeString": "struct AKAF.Node storage ref"
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                                 "memberName": "parentId",
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-                                "src": "2763:22:2",
+                                "referencedDeclaration": 9,
+                                "src": "2791:22:0",
                                 "typeDescriptions": {
                                   "typeIdentifier": "t_uint256",
                                   "typeString": "uint256"
                                 }
                               },
-                              "src": "2751:34:2",
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@@ -12205,14 +12550,14 @@
                             {
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                               "hexValue": "414b41503a20496e76616c696420706172656e742068617368",
-                              "id": 978,
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                               "kind": "string",
                               "lValueRequested": false,
                               "nodeType": "Literal",
-                              "src": "2787:27:2",
+                              "src": "2815:27:0",
                               "subdenomination": null,
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@@ -12232,21 +12577,21 @@
                                 "typeString": "literal_string \"AKAP: Invalid parent hash\""
                               }
                             ],
-                            "id": 971,
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                             "name": "require",
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+                              2880,
+                              2881
                             ],
-                            "referencedDeclaration": 3652,
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+                            "referencedDeclaration": 2881,
+                            "src": "2771:7:0",
                             "typeDescriptions": {
                               "typeIdentifier": "t_function_require_pure$_t_bool_$_t_string_memory_ptr_$returns$__$",
                               "typeString": "function (bool,string memory) pure"
                             }
                           },
-                          "id": 979,
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@@ -12254,20 +12599,20 @@
                           "lValueRequested": false,
                           "names": [],
                           "nodeType": "FunctionCall",
-                          "src": "2743:72:2",
+                          "src": "2771:72:0",
                           "typeDescriptions": {
                             "typeIdentifier": "t_tuple$__$",
                             "typeString": "tuple()"
                           }
                         },
-                        "id": 980,
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                         "nodeType": "ExpressionStatement",
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+                        "src": "2771:72:0"
                       },
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@@ -12278,26 +12623,26 @@
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-                                "src": "2894:5:2",
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+                                "src": "2922:5:0",
                                 "typeDescriptions": {
-                                  "typeIdentifier": "t_mapping$_t_uint256_$_t_struct$_Node_$801_storage_$",
+                                  "typeIdentifier": "t_mapping$_t_uint256_$_t_struct$_Node_$18_storage_$",
                                   "typeString": "mapping(uint256 => struct AKAF.Node storage ref)"
                                 }
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                               "indexExpression": {
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+                                "id": 207,
                                 "name": "nodeId",
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-                                "src": "2900:6:2",
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+                                "src": "2928:6:0",
                                 "typeDescriptions": {
                                   "typeIdentifier": "t_uint256",
                                   "typeString": "uint256"
@@ -12308,21 +12653,21 @@
                               "isPure": false,
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                               "nodeType": "IndexAccess",
-                              "src": "2894:13:2",
+                              "src": "2922:13:0",
                               "typeDescriptions": {
-                                "typeIdentifier": "t_struct$_Node_$801_storage",
+                                "typeIdentifier": "t_struct$_Node_$18_storage",
                                 "typeString": "struct AKAF.Node storage ref"
                               }
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@@ -12335,7 +12680,7 @@
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@@ -12343,18 +12688,18 @@
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@@ -12375,20 +12720,20 @@
                                   "typeString": "int_const -1"
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                                 "typeString": "type(uint256)"
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                               "typeName": "uint"
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@@ -12396,21 +12741,21 @@
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                             "names": [],
                             "nodeType": "FunctionCall",
-                            "src": "2917:8:2",
+                            "src": "2945:8:0",
                             "typeDescriptions": {
                               "typeIdentifier": "t_uint256",
                               "typeString": "uint256"
                             }
                           },
-                          "src": "2894:31:2",
+                          "src": "2922:31:0",
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                             "typeString": "uint256"
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@@ -12421,18 +12766,18 @@
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                                   "typeString": "function () view returns (address payable)"
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@@ -12440,7 +12785,7 @@
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                               "nodeType": "FunctionCall",
-                              "src": "2950:12:2",
+                              "src": "2978:12:0",
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                                 "typeString": "address payable"
@@ -12448,12 +12793,12 @@
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                                 "typeString": "uint256"
@@ -12461,12 +12806,12 @@
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@@ -12474,12 +12819,12 @@
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                                 "typeString": "bytes calldata"
@@ -12489,18 +12834,18 @@
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+                                "id": 222,
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+                                "src": "3017:9:0",
                                 "typeDescriptions": {
-                                  "typeIdentifier": "t_type$_t_enum$_ClaimCase_$1865_$",
+                                  "typeIdentifier": "t_type$_t_enum$_ClaimCase_$1094_$",
                                   "typeString": "type(enum IAKAP.ClaimCase)"
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@@ -12508,9 +12853,9 @@
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                               "nodeType": "MemberAccess",
                               "referencedDeclaration": null,
-                              "src": "2989:17:2",
+                              "src": "3017:17:0",
                               "typeDescriptions": {
-                                "typeIdentifier": "t_enum$_ClaimCase_$1865",
+                                "typeIdentifier": "t_enum$_ClaimCase_$1094",
                                 "typeString": "enum IAKAP.ClaimCase"
                               }
                             }
@@ -12534,22 +12879,22 @@
                                 "typeString": "bytes calldata"
                               },
                               {
-                                "typeIdentifier": "t_enum$_ClaimCase_$1865",
+                                "typeIdentifier": "t_enum$_ClaimCase_$1094",
                                 "typeString": "enum IAKAP.ClaimCase"
                               }
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+                            "referencedDeclaration": 1112,
+                            "src": "2972:5:0",
                             "typeDescriptions": {
-                              "typeIdentifier": "t_function_event_nonpayable$_t_address_$_t_uint256_$_t_uint256_$_t_bytes_memory_ptr_$_t_enum$_ClaimCase_$1865_$returns$__$",
+                              "typeIdentifier": "t_function_event_nonpayable$_t_address_$_t_uint256_$_t_uint256_$_t_bytes_memory_ptr_$_t_enum$_ClaimCase_$1094_$returns$__$",
                               "typeString": "function (address,uint256,uint256,bytes memory,enum IAKAP.ClaimCase)"
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@@ -12557,28 +12902,28 @@
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                           "nodeType": "FunctionCall",
-                          "src": "2944:63:2",
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                             "typeString": "tuple()"
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@@ -12586,10 +12931,10 @@
                           },
                           "value": "1"
                         },
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@@ -12598,14 +12943,14 @@
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@@ -12613,31 +12958,31 @@
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             "nodeType": "FunctionDefinition",
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@@ -12645,10 +12990,10 @@
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@@ -12659,11 +13004,11 @@
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@@ -12671,10 +13016,10 @@
                     "typeString": "bytes"
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+                    "id": 162,
                     "name": "bytes",
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                       "typeString": "bytes"
@@ -12684,19 +13029,19 @@
                   "visibility": "internal"
                 }
               ],
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@@ -12704,10 +13049,10 @@
                     "typeString": "uint256"
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                       "typeString": "uint256"
@@ -12717,95 +13062,164 @@
                   "visibility": "internal"
                 }
               ],
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             },
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+                          "src": "4012:6:0",
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+                            "typeIdentifier": "t_uint256",
+                            "typeString": "uint256"
+                          }
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+                      ],
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+                            "typeIdentifier": "t_uint256",
+                            "typeString": "uint256"
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                         "nodeType": "Identifier",
                         "overloadedDeclarations": [],
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+                        "src": "4004:7:0",
                         "typeDescriptions": {
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-                          "typeString": "uint256"
+                          "typeIdentifier": "t_function_internal_view$_t_uint256_$returns$_t_bool_$",
+                          "typeString": "function (uint256) view returns (bool)"
                         }
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                       "typeDescriptions": {
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-                        "typeString": "function (uint256) view returns (bool)"
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-                    "src": "3976:15:2",
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                     "typeDescriptions": {
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                       "typeString": "bool"
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@@ -12813,10 +13227,10 @@
                     "typeString": "uint256"
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@@ -12826,19 +13240,19 @@
                   "visibility": "internal"
                 }
               ],
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@@ -12846,10 +13260,10 @@
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@@ -12859,19 +13273,19 @@
                   "visibility": "internal"
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@@ -12882,18 +13296,18 @@
                         "arguments": [],
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                             "typeString": "function () view returns (address payable)"
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@@ -12901,7 +13315,7 @@
                         "lValueRequested": false,
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                         "nodeType": "FunctionCall",
-                        "src": "4109:12:2",
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                         "typeDescriptions": {
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                           "typeString": "address payable"
@@ -12909,12 +13323,12 @@
                       },
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@@ -13551,19 +13965,19 @@
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@@ -13605,26 +14019,26 @@
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+                          "typeIdentifier": "t_mapping$_t_uint256_$_t_struct$_Node_$18_storage_$",
                           "typeString": "mapping(uint256 => struct AKAF.Node storage ref)"
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@@ -13635,35 +14049,35 @@
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                       "lValueRequested": false,
                       "nodeType": "IndexAccess",
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                       "typeDescriptions": {
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+                        "typeIdentifier": "t_struct$_Node_$18_storage",
                         "typeString": "struct AKAF.Node storage ref"
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-                    "src": "4641:24:2",
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                       "typeString": "address"
                     }
                   },
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@@ -13671,49 +14085,49 @@
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                       "typeString": "uint256"
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                     "typeString": "modifier (uint256)"
                   }
                 },
                 "nodeType": "ModifierInvocation",
-                "src": "4585:20:2"
+                "src": "4627:20:0"
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@@ -13721,10 +14135,10 @@
                     "typeString": "uint256"
                   },
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+                    "id": 406,
                     "name": "uint",
                     "nodeType": "ElementaryTypeName",
-                    "src": "4558:4:2",
+                    "src": "4600:4:0",
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                       "typeString": "uint256"
@@ -13734,19 +14148,19 @@
                   "visibility": "internal"
                 }
               ],
-              "src": "4557:13:2"
+              "src": "4599:13:0"
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@@ -13754,10 +14168,10 @@
                     "typeString": "address"
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@@ -13768,19 +14182,19 @@
                   "visibility": "internal"
                 }
               ],
-              "src": "4614:9:2"
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@@ -13789,26 +14203,26 @@
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-                        "src": "4784:5:2",
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                         "typeDescriptions": {
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+                          "typeIdentifier": "t_mapping$_t_uint256_$_t_struct$_Node_$18_storage_$",
                           "typeString": "mapping(uint256 => struct AKAF.Node storage ref)"
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@@ -13819,35 +14233,35 @@
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                       "nodeType": "IndexAccess",
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                         "typeString": "struct AKAF.Node storage ref"
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@@ -13855,49 +14269,49 @@
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-                  "src": "4723:12:2",
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                     "typeString": "modifier (uint256)"
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@@ -13905,10 +14319,10 @@
                     "typeString": "uint256"
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+                    "id": 422,
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-                    "src": "4696:4:2",
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                       "typeString": "uint256"
@@ -13918,19 +14332,19 @@
                   "visibility": "internal"
                 }
               ],
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+              "src": "4737:13:0"
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@@ -13938,10 +14352,10 @@
                     "typeString": "bytes"
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@@ -13951,24 +14365,24 @@
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@@ -13979,26 +14393,26 @@
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+                            "typeIdentifier": "t_mapping$_t_uint256_$_t_struct$_Node_$18_storage_$",
                             "typeString": "mapping(uint256 => struct AKAF.Node storage ref)"
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@@ -14009,21 +14423,21 @@
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                         "nodeType": "IndexAccess",
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                         "typeDescriptions": {
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+                          "typeIdentifier": "t_struct$_Node_$18_storage",
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@@ -14033,26 +14447,26 @@
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                         "typeString": "uint256"
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-                    "src": "4892:26:2",
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@@ -14063,18 +14477,18 @@
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+                          "id": 453,
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@@ -14082,7 +14496,7 @@
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                         "nodeType": "FunctionCall",
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@@ -14090,12 +14504,12 @@
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                           "typeString": "uint256"
@@ -14105,18 +14519,18 @@
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+                          "referencedDeclaration": 1100,
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                           "typeDescriptions": {
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+                            "typeIdentifier": "t_type$_t_enum$_NodeAttribute_$1100_$",
                             "typeString": "type(enum IAKAP.NodeAttribute)"
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@@ -14124,9 +14538,9 @@
                         "memberName": "EXPIRY",
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                         "referencedDeclaration": null,
-                        "src": "4972:20:2",
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                         "typeDescriptions": {
-                          "typeIdentifier": "t_enum$_NodeAttribute_$1871",
+                          "typeIdentifier": "t_enum$_NodeAttribute_$1100",
                           "typeString": "enum IAKAP.NodeAttribute"
                         }
                       }
@@ -14142,22 +14556,22 @@
                           "typeString": "uint256"
                         },
                         {
-                          "typeIdentifier": "t_enum$_NodeAttribute_$1871",
+                          "typeIdentifier": "t_enum$_NodeAttribute_$1100",
                           "typeString": "enum IAKAP.NodeAttribute"
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+                        "typeIdentifier": "t_function_event_nonpayable$_t_address_$_t_uint256_$_t_enum$_NodeAttribute_$1100_$returns$__$",
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@@ -14165,20 +14579,20 @@
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-                    "src": "4933:60:2",
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@@ -14186,49 +14600,49 @@
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                 },
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-                "src": "4861:20:2"
+                "src": "4903:20:0"
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-                  "src": "4839:11:2",
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@@ -14236,10 +14650,10 @@
                     "typeString": "uint256"
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                       "typeString": "uint256"
@@ -14249,30 +14663,30 @@
                   "visibility": "internal"
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@@ -14283,26 +14697,26 @@
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+                          "src": "5133:5:0",
                           "typeDescriptions": {
-                            "typeIdentifier": "t_mapping$_t_uint256_$_t_struct$_Node_$801_storage_$",
+                            "typeIdentifier": "t_mapping$_t_uint256_$_t_struct$_Node_$18_storage_$",
                             "typeString": "mapping(uint256 => struct AKAF.Node storage ref)"
                           }
                         },
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@@ -14313,21 +14727,21 @@
                         "isPure": false,
                         "lValueRequested": false,
                         "nodeType": "IndexAccess",
-                        "src": "5091:13:2",
+                        "src": "5133:13:0",
                         "typeDescriptions": {
-                          "typeIdentifier": "t_struct$_Node_$801_storage",
+                          "typeIdentifier": "t_struct$_Node_$18_storage",
                           "typeString": "struct AKAF.Node storage ref"
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@@ -14337,26 +14751,26 @@
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                         "typeString": "uint256"
                       }
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-                    "src": "5091:29:2",
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                       "typeString": "uint256"
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@@ -14367,18 +14781,18 @@
                         "arguments": [],
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+                          "id": 479,
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                           "typeDescriptions": {
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                             "typeString": "function () view returns (address payable)"
                           }
                         },
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@@ -14386,7 +14800,7 @@
                         "lValueRequested": false,
                         "names": [],
                         "nodeType": "FunctionCall",
-                        "src": "5152:12:2",
+                        "src": "5194:12:0",
                         "typeDescriptions": {
                           "typeIdentifier": "t_address_payable",
                           "typeString": "address payable"
@@ -14394,12 +14808,12 @@
                       },
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                         "overloadedDeclarations": [],
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+                        "src": "5208:6:0",
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                           "typeIdentifier": "t_uint256",
                           "typeString": "uint256"
@@ -14409,18 +14823,18 @@
                         "argumentTypes": null,
                         "expression": {
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+                          "id": 482,
                           "name": "NodeAttribute",
                           "nodeType": "Identifier",
                           "overloadedDeclarations": [],
-                          "referencedDeclaration": 1871,
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+                          "referencedDeclaration": 1100,
+                          "src": "5216:13:0",
                           "typeDescriptions": {
-                            "typeIdentifier": "t_type$_t_enum$_NodeAttribute_$1871_$",
+                            "typeIdentifier": "t_type$_t_enum$_NodeAttribute_$1100_$",
                             "typeString": "type(enum IAKAP.NodeAttribute)"
                           }
                         },
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@@ -14428,9 +14842,9 @@
                         "memberName": "SEE_ALSO",
                         "nodeType": "MemberAccess",
                         "referencedDeclaration": null,
-                        "src": "5174:22:2",
+                        "src": "5216:22:0",
                         "typeDescriptions": {
-                          "typeIdentifier": "t_enum$_NodeAttribute_$1871",
+                          "typeIdentifier": "t_enum$_NodeAttribute_$1100",
                           "typeString": "enum IAKAP.NodeAttribute"
                         }
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@@ -14446,22 +14860,22 @@
                           "typeString": "uint256"
                         },
                         {
-                          "typeIdentifier": "t_enum$_NodeAttribute_$1871",
+                          "typeIdentifier": "t_enum$_NodeAttribute_$1100",
                           "typeString": "enum IAKAP.NodeAttribute"
                         }
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-                      "src": "5135:16:2",
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                       "typeDescriptions": {
-                        "typeIdentifier": "t_function_event_nonpayable$_t_address_$_t_uint256_$_t_enum$_NodeAttribute_$1871_$returns$__$",
+                        "typeIdentifier": "t_function_event_nonpayable$_t_address_$_t_uint256_$_t_enum$_NodeAttribute_$1100_$returns$__$",
                         "typeString": "function (address,uint256,enum IAKAP.NodeAttribute)"
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@@ -14469,20 +14883,20 @@
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                     "nodeType": "FunctionCall",
-                    "src": "5135:62:2",
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                       "typeString": "tuple()"
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@@ -14490,49 +14904,49 @@
                 "arguments": [
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                       "typeString": "uint256"
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                   }
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                     "typeString": "modifier (uint256)"
                   }
                 },
                 "nodeType": "ModifierInvocation",
-                "src": "5060:20:2"
+                "src": "5102:20:0"
               }
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@@ -14540,10 +14954,10 @@
                     "typeString": "uint256"
                   },
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+                    "id": 462,
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@@ -14554,11 +14968,11 @@
                 },
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@@ -14566,10 +14980,10 @@
                     "typeString": "uint256"
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                       "typeString": "uint256"
@@ -14579,30 +14993,30 @@
                   "visibility": "internal"
                 }
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-              "src": "5025:25:2"
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@@ -14613,26 +15027,26 @@
                         "argumentTypes": null,
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                           "name": "nodes",
                           "nodeType": "Identifier",
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-                          "src": "5301:5:2",
+                          "referencedDeclaration": 22,
+                          "src": "5343:5:0",
                           "typeDescriptions": {
-                            "typeIdentifier": "t_mapping$_t_uint256_$_t_struct$_Node_$801_storage_$",
+                            "typeIdentifier": "t_mapping$_t_uint256_$_t_struct$_Node_$18_storage_$",
                             "typeString": "mapping(uint256 => struct AKAF.Node storage ref)"
                           }
                         },
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                           "overloadedDeclarations": [],
-                          "referencedDeclaration": 1260,
-                          "src": "5307:6:2",
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@@ -14643,21 +15057,21 @@
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                         "lValueRequested": false,
                         "nodeType": "IndexAccess",
-                        "src": "5301:13:2",
+                        "src": "5343:13:0",
                         "typeDescriptions": {
-                          "typeIdentifier": "t_struct$_Node_$801_storage",
+                          "typeIdentifier": "t_struct$_Node_$18_storage",
                           "typeString": "struct AKAF.Node storage ref"
                         }
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-                      "src": "5301:24:2",
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+                      "src": "5343:24:0",
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                         "typeString": "address"
@@ -14667,26 +15081,26 @@
                     "operator": "=",
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-                      "src": "5328:5:2",
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+                      "src": "5370:5:0",
                       "typeDescriptions": {
                         "typeIdentifier": "t_address",
                         "typeString": "address"
                       }
                     },
-                    "src": "5301:32:2",
+                    "src": "5343:32:0",
                     "typeDescriptions": {
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                       "typeString": "address"
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                   "eventCall": {
@@ -14697,18 +15111,18 @@
                         "arguments": [],
                         "expression": {
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-                          "id": 1276,
+                          "id": 505,
                           "name": "_msgSender",
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-                          "src": "5365:10:2",
+                          "referencedDeclaration": 69,
+                          "src": "5407:10:0",
                           "typeDescriptions": {
                             "typeIdentifier": "t_function_internal_view$__$returns$_t_address_payable_$",
                             "typeString": "function () view returns (address payable)"
                           }
                         },
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@@ -14716,7 +15130,7 @@
                         "lValueRequested": false,
                         "names": [],
                         "nodeType": "FunctionCall",
-                        "src": "5365:12:2",
+                        "src": "5407:12:0",
                         "typeDescriptions": {
                           "typeIdentifier": "t_address_payable",
                           "typeString": "address payable"
@@ -14724,12 +15138,12 @@
                       },
                       {
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                         "overloadedDeclarations": [],
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                           "typeString": "uint256"
@@ -14739,18 +15153,18 @@
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+                          "referencedDeclaration": 1100,
+                          "src": "5429:13:0",
                           "typeDescriptions": {
-                            "typeIdentifier": "t_type$_t_enum$_NodeAttribute_$1871_$",
+                            "typeIdentifier": "t_type$_t_enum$_NodeAttribute_$1100_$",
                             "typeString": "type(enum IAKAP.NodeAttribute)"
                           }
                         },
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@@ -14758,9 +15172,9 @@
                         "memberName": "SEE_ADDRESS",
                         "nodeType": "MemberAccess",
                         "referencedDeclaration": null,
-                        "src": "5387:25:2",
+                        "src": "5429:25:0",
                         "typeDescriptions": {
-                          "typeIdentifier": "t_enum$_NodeAttribute_$1871",
+                          "typeIdentifier": "t_enum$_NodeAttribute_$1100",
                           "typeString": "enum IAKAP.NodeAttribute"
                         }
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@@ -14776,22 +15190,22 @@
                           "typeString": "uint256"
                         },
                         {
-                          "typeIdentifier": "t_enum$_NodeAttribute_$1871",
+                          "typeIdentifier": "t_enum$_NodeAttribute_$1100",
                           "typeString": "enum IAKAP.NodeAttribute"
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-                      "src": "5348:16:2",
+                      "referencedDeclaration": 1120,
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                       "typeDescriptions": {
-                        "typeIdentifier": "t_function_event_nonpayable$_t_address_$_t_uint256_$_t_enum$_NodeAttribute_$1871_$returns$__$",
+                        "typeIdentifier": "t_function_event_nonpayable$_t_address_$_t_uint256_$_t_enum$_NodeAttribute_$1100_$returns$__$",
                         "typeString": "function (address,uint256,enum IAKAP.NodeAttribute)"
                       }
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@@ -14799,20 +15213,20 @@
                     "lValueRequested": false,
                     "names": [],
                     "nodeType": "FunctionCall",
-                    "src": "5348:65:2",
+                    "src": "5390:65:0",
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                       "typeString": "tuple()"
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@@ -14820,49 +15234,49 @@
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                     "typeString": "modifier (uint256)"
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                 },
                 "nodeType": "ModifierInvocation",
-                "src": "5270:20:2"
+                "src": "5312:20:0"
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             "nodeType": "FunctionDefinition",
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-                  "src": "5233:11:2",
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@@ -14870,10 +15284,10 @@
                     "typeString": "uint256"
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@@ -14884,11 +15298,11 @@
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-                  "src": "5246:13:2",
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                   "storageLocation": "default",
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@@ -14896,10 +15310,10 @@
                     "typeString": "address"
                   },
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-                    "id": 1261,
+                    "id": 490,
                     "name": "address",
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+                    "src": "5288:7:0",
                     "stateMutability": "nonpayable",
                     "typeDescriptions": {
                       "typeIdentifier": "t_address",
@@ -14910,30 +15324,30 @@
                   "visibility": "internal"
                 }
               ],
-              "src": "5232:28:2"
+              "src": "5274:28:0"
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+            "src": "5252:210:0",
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+            "superFunction": 1244,
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+              "id": 538,
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+              "src": "5554:125:0",
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@@ -14944,26 +15358,26 @@
                         "argumentTypes": null,
                         "baseExpression": {
                           "argumentTypes": null,
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                           "name": "nodes",
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                           "overloadedDeclarations": [],
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-                          "src": "5522:5:2",
+                          "referencedDeclaration": 22,
+                          "src": "5564:5:0",
                           "typeDescriptions": {
-                            "typeIdentifier": "t_mapping$_t_uint256_$_t_struct$_Node_$801_storage_$",
+                            "typeIdentifier": "t_mapping$_t_uint256_$_t_struct$_Node_$18_storage_$",
                             "typeString": "mapping(uint256 => struct AKAF.Node storage ref)"
                           }
                         },
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+                        "id": 525,
                         "indexExpression": {
                           "argumentTypes": null,
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                           "nodeType": "Identifier",
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-                          "src": "5528:6:2",
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+                          "src": "5570:6:0",
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                             "typeIdentifier": "t_uint256",
                             "typeString": "uint256"
@@ -14974,21 +15388,21 @@
                         "isPure": false,
                         "lValueRequested": false,
                         "nodeType": "IndexAccess",
-                        "src": "5522:13:2",
+                        "src": "5564:13:0",
                         "typeDescriptions": {
-                          "typeIdentifier": "t_struct$_Node_$801_storage",
+                          "typeIdentifier": "t_struct$_Node_$18_storage",
                           "typeString": "struct AKAF.Node storage ref"
                         }
                       },
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                         "typeString": "bytes storage ref"
@@ -14998,26 +15412,26 @@
                     "operator": "=",
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-                      "src": "5547:5:2",
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                         "typeIdentifier": "t_bytes_calldata_ptr",
                         "typeString": "bytes calldata"
                       }
                     },
-                    "src": "5522:30:2",
+                    "src": "5564:30:0",
                     "typeDescriptions": {
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                       "typeString": "bytes storage ref"
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                   "eventCall": {
@@ -15028,18 +15442,18 @@
                         "arguments": [],
                         "expression": {
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-                          "id": 1302,
+                          "id": 531,
                           "name": "_msgSender",
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+                          "referencedDeclaration": 69,
+                          "src": "5626:10:0",
                           "typeDescriptions": {
                             "typeIdentifier": "t_function_internal_view$__$returns$_t_address_payable_$",
                             "typeString": "function () view returns (address payable)"
                           }
                         },
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@@ -15047,7 +15461,7 @@
                         "lValueRequested": false,
                         "names": [],
                         "nodeType": "FunctionCall",
-                        "src": "5584:12:2",
+                        "src": "5626:12:0",
                         "typeDescriptions": {
                           "typeIdentifier": "t_address_payable",
                           "typeString": "address payable"
@@ -15055,12 +15469,12 @@
                       },
                       {
                         "argumentTypes": null,
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-                        "src": "5598:6:2",
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+                        "src": "5640:6:0",
                         "typeDescriptions": {
                           "typeIdentifier": "t_uint256",
                           "typeString": "uint256"
@@ -15070,18 +15484,18 @@
                         "argumentTypes": null,
                         "expression": {
                           "argumentTypes": null,
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+                          "id": 534,
                           "name": "NodeAttribute",
                           "nodeType": "Identifier",
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+                          "referencedDeclaration": 1100,
+                          "src": "5648:13:0",
                           "typeDescriptions": {
-                            "typeIdentifier": "t_type$_t_enum$_NodeAttribute_$1871_$",
+                            "typeIdentifier": "t_type$_t_enum$_NodeAttribute_$1100_$",
                             "typeString": "type(enum IAKAP.NodeAttribute)"
                           }
                         },
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@@ -15089,9 +15503,9 @@
                         "memberName": "NODE_BODY",
                         "nodeType": "MemberAccess",
                         "referencedDeclaration": null,
-                        "src": "5606:23:2",
+                        "src": "5648:23:0",
                         "typeDescriptions": {
-                          "typeIdentifier": "t_enum$_NodeAttribute_$1871",
+                          "typeIdentifier": "t_enum$_NodeAttribute_$1100",
                           "typeString": "enum IAKAP.NodeAttribute"
                         }
                       }
@@ -15107,22 +15521,22 @@
                           "typeString": "uint256"
                         },
                         {
-                          "typeIdentifier": "t_enum$_NodeAttribute_$1871",
+                          "typeIdentifier": "t_enum$_NodeAttribute_$1100",
                           "typeString": "enum IAKAP.NodeAttribute"
                         }
                       ],
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                       "name": "AttributeChanged",
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-                      "src": "5567:16:2",
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                       "typeDescriptions": {
-                        "typeIdentifier": "t_function_event_nonpayable$_t_address_$_t_uint256_$_t_enum$_NodeAttribute_$1871_$returns$__$",
+                        "typeIdentifier": "t_function_event_nonpayable$_t_address_$_t_uint256_$_t_enum$_NodeAttribute_$1100_$returns$__$",
                         "typeString": "function (address,uint256,enum IAKAP.NodeAttribute)"
                       }
                     },
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@@ -15130,20 +15544,20 @@
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                     "names": [],
                     "nodeType": "FunctionCall",
-                    "src": "5567:63:2",
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                       "typeString": "tuple()"
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                   },
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@@ -15151,49 +15565,49 @@
                 "arguments": [
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                       "typeString": "uint256"
                     }
                   }
                 ],
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+                "id": 521,
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                   "name": "onlyApproved",
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-                  "src": "5491:12:2",
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+                  "src": "5533:12:0",
                   "typeDescriptions": {
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                     "typeString": "modifier (uint256)"
                   }
                 },
                 "nodeType": "ModifierInvocation",
-                "src": "5491:20:2"
+                "src": "5533:20:0"
               }
             ],
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               "nodeType": "ParameterList",
               "parameters": [
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+                  "id": 515,
                   "name": "nodeId",
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-                  "scope": 1310,
-                  "src": "5447:11:2",
+                  "scope": 539,
+                  "src": "5489:11:0",
                   "stateVariable": false,
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@@ -15201,10 +15615,10 @@
                     "typeString": "uint256"
                   },
                   "typeName": {
-                    "id": 1285,
+                    "id": 514,
                     "name": "uint",
                     "nodeType": "ElementaryTypeName",
-                    "src": "5447:4:2",
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                     "typeDescriptions": {
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                       "typeString": "uint256"
@@ -15215,11 +15629,11 @@
                 },
                 {
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@@ -15227,10 +15641,10 @@
                     "typeString": "bytes"
                   },
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+                    "id": 516,
                     "name": "bytes",
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                     "typeDescriptions": {
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                       "typeString": "bytes"
@@ -15240,25 +15654,25 @@
                   "visibility": "internal"
                 }
               ],
-              "src": "5446:35:2"
+              "src": "5488:35:0"
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+            "src": "5468:211:0",
             "stateMutability": "nonpayable",
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+            "superFunction": 1251,
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           {
             "body": {
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               "nodeType": "Block",
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@@ -15266,12 +15680,12 @@
                     "arguments": [
                       {
                         "argumentTypes": null,
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+                        "id": 550,
                         "name": "nodeId",
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                         "overloadedDeclarations": [],
-                        "referencedDeclaration": 1312,
-                        "src": "5751:6:2",
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                         "typeDescriptions": {
                           "typeIdentifier": "t_uint256",
                           "typeString": "uint256"
@@ -15279,12 +15693,12 @@
                       },
                       {
                         "argumentTypes": null,
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                         "name": "uri",
                         "nodeType": "Identifier",
                         "overloadedDeclarations": [],
-                        "referencedDeclaration": 1314,
-                        "src": "5759:3:2",
+                        "referencedDeclaration": 543,
+                        "src": "5801:3:0",
                         "typeDescriptions": {
                           "typeIdentifier": "t_string_calldata_ptr",
                           "typeString": "string calldata"
@@ -15302,18 +15716,18 @@
                           "typeString": "string calldata"
                         }
                       ],
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                       "name": "_setTokenURI",
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-                      "src": "5738:12:2",
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                         "typeString": "function (uint256,string memory)"
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                     },
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@@ -15321,15 +15735,15 @@
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                     "names": [],
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-                    "src": "5738:25:2",
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                       "typeString": "tuple()"
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                   "eventCall": {
@@ -15340,18 +15754,18 @@
                         "arguments": [],
                         "expression": {
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+                          "id": 555,
                           "name": "_msgSender",
                           "nodeType": "Identifier",
                           "overloadedDeclarations": [],
-                          "referencedDeclaration": 852,
-                          "src": "5795:10:2",
+                          "referencedDeclaration": 69,
+                          "src": "5837:10:0",
                           "typeDescriptions": {
                             "typeIdentifier": "t_function_internal_view$__$returns$_t_address_payable_$",
                             "typeString": "function () view returns (address payable)"
                           }
                         },
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@@ -15359,7 +15773,7 @@
                         "lValueRequested": false,
                         "names": [],
                         "nodeType": "FunctionCall",
-                        "src": "5795:12:2",
+                        "src": "5837:12:0",
                         "typeDescriptions": {
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                           "typeString": "address payable"
@@ -15367,12 +15781,12 @@
                       },
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                           "typeString": "uint256"
@@ -15382,18 +15796,18 @@
                         "argumentTypes": null,
                         "expression": {
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-                          "id": 1329,
+                          "id": 558,
                           "name": "NodeAttribute",
                           "nodeType": "Identifier",
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-                          "referencedDeclaration": 1871,
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+                          "referencedDeclaration": 1100,
+                          "src": "5859:13:0",
                           "typeDescriptions": {
-                            "typeIdentifier": "t_type$_t_enum$_NodeAttribute_$1871_$",
+                            "typeIdentifier": "t_type$_t_enum$_NodeAttribute_$1100_$",
                             "typeString": "type(enum IAKAP.NodeAttribute)"
                           }
                         },
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+                        "id": 559,
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@@ -15401,9 +15815,9 @@
                         "memberName": "TOKEN_URI",
                         "nodeType": "MemberAccess",
                         "referencedDeclaration": null,
-                        "src": "5817:23:2",
+                        "src": "5859:23:0",
                         "typeDescriptions": {
-                          "typeIdentifier": "t_enum$_NodeAttribute_$1871",
+                          "typeIdentifier": "t_enum$_NodeAttribute_$1100",
                           "typeString": "enum IAKAP.NodeAttribute"
                         }
                       }
@@ -15419,22 +15833,22 @@
                           "typeString": "uint256"
                         },
                         {
-                          "typeIdentifier": "t_enum$_NodeAttribute_$1871",
+                          "typeIdentifier": "t_enum$_NodeAttribute_$1100",
                           "typeString": "enum IAKAP.NodeAttribute"
                         }
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                       "name": "AttributeChanged",
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                       "typeDescriptions": {
-                        "typeIdentifier": "t_function_event_nonpayable$_t_address_$_t_uint256_$_t_enum$_NodeAttribute_$1871_$returns$__$",
+                        "typeIdentifier": "t_function_event_nonpayable$_t_address_$_t_uint256_$_t_enum$_NodeAttribute_$1100_$returns$__$",
                         "typeString": "function (address,uint256,enum IAKAP.NodeAttribute)"
                       }
                     },
-                    "id": 1331,
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@@ -15442,20 +15856,20 @@
                     "lValueRequested": false,
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-                    "src": "5778:63:2",
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                     "typeDescriptions": {
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                   },
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@@ -15463,49 +15877,49 @@
                 "arguments": [
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                       "typeString": "uint256"
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                   }
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                   "name": "onlyApproved",
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                     "typeString": "modifier (uint256)"
                   }
                 },
                 "nodeType": "ModifierInvocation",
-                "src": "5707:20:2"
+                "src": "5749:20:0"
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@@ -15513,10 +15927,10 @@
                     "typeString": "uint256"
                   },
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+                    "id": 540,
                     "name": "uint",
                     "nodeType": "ElementaryTypeName",
-                    "src": "5664:4:2",
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                       "typeString": "uint256"
@@ -15527,11 +15941,11 @@
                 },
                 {
                   "constant": false,
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+                  "id": 543,
                   "name": "uri",
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+                  "scope": 563,
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@@ -15539,10 +15953,10 @@
                     "typeString": "string"
                   },
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-                    "id": 1313,
+                    "id": 542,
                     "name": "string",
                     "nodeType": "ElementaryTypeName",
-                    "src": "5677:6:2",
+                    "src": "5719:6:0",
                     "typeDescriptions": {
                       "typeIdentifier": "t_string_storage_ptr",
                       "typeString": "string"
@@ -15552,179 +15966,34 @@
                   "visibility": "internal"
                 }
               ],
-              "src": "5663:34:2"
+              "src": "5705:34:0"
             },
             "returnParameters": {
-              "id": 1319,
+              "id": 548,
               "nodeType": "ParameterList",
               "parameters": [],
-              "src": "5728:0:2"
+              "src": "5770:0:0"
             },
-            "scope": 1335,
-            "src": "5643:205:2",
+            "scope": 564,
+            "src": "5685:205:0",
             "stateMutability": "nonpayable",
-            "superFunction": 2029,
+            "superFunction": 1258,
             "visibility": "external"
           }
         ],
-        "scope": 1336,
-        "src": "737:5113:2"
+        "scope": 565,
+        "src": "737:5155:0"
       }
     ],
-    "src": "627:5223:2"
+    "src": "627:5265:0"
   },
   "compiler": {
     "name": "solc",
     "version": "0.5.16+commit.9c3226ce.Emscripten.clang"
   },
-  "networks": {
-    "5777": {
-      "events": {
-        "0x8c5be1e5ebec7d5bd14f71427d1e84f3dd0314c0f7b2291e5b200ac8c7c3b925": {
-          "anonymous": false,
-          "inputs": [
-            {
-              "indexed": true,
-              "internalType": "address",
-              "name": "owner",
-              "type": "address"
-            },
-            {
-              "indexed": true,
-              "internalType": "address",
-              "name": "approved",
-              "type": "address"
-            },
-            {
-              "indexed": true,
-              "internalType": "uint256",
-              "name": "tokenId",
-              "type": "uint256"
-            }
-          ],
-          "name": "Approval",
-          "type": "event"
-        },
-        "0x17307eab39ab6107e8899845ad3d59bd9653f200f220920489ca2b5937696c31": {
-          "anonymous": false,
-          "inputs": [
-            {
-              "indexed": true,
-              "internalType": "address",
-              "name": "owner",
-              "type": "address"
-            },
-            {
-              "indexed": true,
-              "internalType": "address",
-              "name": "operator",
-              "type": "address"
-            },
-            {
-              "indexed": false,
-              "internalType": "bool",
-              "name": "approved",
-              "type": "bool"
-            }
-          ],
-          "name": "ApprovalForAll",
-          "type": "event"
-        },
-        "0x4e643f23cbc202af4f83dce574290af81b7d940546736d83eec38524c05908f8": {
-          "anonymous": false,
-          "inputs": [
-            {
-              "indexed": true,
-              "internalType": "address",
-              "name": "sender",
-              "type": "address"
-            },
-            {
-              "indexed": true,
-              "internalType": "uint256",
-              "name": "nodeId",
-              "type": "uint256"
-            },
-            {
-              "indexed": false,
-              "internalType": "enum IAKAP.NodeAttribute",
-              "name": "attribute",
-              "type": "uint8"
-            }
-          ],
-          "name": "AttributeChanged",
-          "type": "event"
-        },
-        "0x2574d3b5e98dcd17b129343ee43bda3629741c9f23256766c603c18f2c1f014e": {
-          "anonymous": false,
-          "inputs": [
-            {
-              "indexed": true,
-              "internalType": "address",
-              "name": "sender",
-              "type": "address"
-            },
-            {
-              "indexed": true,
-              "internalType": "uint256",
-              "name": "nodeId",
-              "type": "uint256"
-            },
-            {
-              "indexed": true,
-              "internalType": "uint256",
-              "name": "parentId",
-              "type": "uint256"
-            },
-            {
-              "indexed": false,
-              "internalType": "bytes",
-              "name": "label",
-              "type": "bytes"
-            },
-            {
-              "indexed": false,
-              "internalType": "enum IAKAP.ClaimCase",
-              "name": "claimCase",
-              "type": "uint8"
-            }
-          ],
-          "name": "Claim",
-          "type": "event"
-        },
-        "0xddf252ad1be2c89b69c2b068fc378daa952ba7f163c4a11628f55a4df523b3ef": {
-          "anonymous": false,
-          "inputs": [
-            {
-              "indexed": true,
-              "internalType": "address",
-              "name": "from",
-              "type": "address"
-            },
-            {
-              "indexed": true,
-              "internalType": "address",
-              "name": "to",
-              "type": "address"
-            },
-            {
-              "indexed": true,
-              "internalType": "uint256",
-              "name": "tokenId",
-              "type": "uint256"
-            }
-          ],
-          "name": "Transfer",
-          "type": "event"
-        }
-      },
-      "links": {},
-      "address": "0x96923dA433Be67C18D24C5D60B8d4A250D9AC66b",
-      "transactionHash": "0x31f48623ffd5006724ea313beecab3164036594e0108847076af65fc932e7ccf"
-    }
-  },
+  "networks": {},
   "schemaVersion": "3.0.23",
-  "updatedAt": "2020-05-12T10:00:23.992Z",
+  "updatedAt": "2020-05-13T14:37:55.412Z",
   "devdoc": {
     "methods": {
       "approve(address,uint256)": {
diff --git a/contracts/AKAF.sol b/contracts/AKAF.sol
index 5180b16..a3d401b 100644
--- a/contracts/AKAF.sol
+++ b/contracts/AKAF.sol
@@ -42,13 +42,13 @@ contract AKAF is IAKAP, ERC721Full {
     }
 
     modifier onlyExisting(uint nodeId) {
-        require(_exists(nodeId), "AKAP: operator query for nonexistent node");
+        require(_exists(nodeId) && nodeId > 0, "AKAP: operator query for nonexistent node");
 
         _;
     }
 
     modifier onlyApproved(uint nodeId) {
-        require(_exists(nodeId) && _isApprovedOrOwner(_msgSender(), nodeId), "AKAP: set value caller is not owner nor approved");
+        require(_exists(nodeId) && _isApprovedOrOwner(_msgSender(), nodeId) && nodeId > 0, "AKAP: set value caller is not owner nor approved");
 
         _;
     }
@@ -107,7 +107,7 @@ contract AKAF is IAKAP, ERC721Full {
     }
 
     function exists(uint nodeId) external view returns (bool) {
-        return _exists(nodeId);
+        return _exists(nodeId) && nodeId > 0;
     }
 
     function isApprovedOrOwner(uint nodeId) external view returns (bool) {
diff --git a/package.json b/package.json
index f6a6bdc..1f80c68 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "akap",
-  "version": "1.1.0",
+  "version": "1.1.1",
   "description": "AKA protocol, the LDAP of Ethereum",
   "files": [
     "/contracts/*.sol",