diff --git a/src/App.tsx b/src/App.tsx
index d7d99d9..2b621ef 100644
--- a/src/App.tsx
+++ b/src/App.tsx
@@ -10,7 +10,7 @@ import {
 } from '@rainbow-me/rainbowkit';
 import { QueryClient, QueryClientProvider } from '@tanstack/react-query';
 import { Navigate, Route, Routes } from 'react-router-dom';
-import { baseSepolia } from 'viem/chains';
+import { arbitrum } from 'viem/chains';
 import { useAccount } from 'wagmi';
 
 import MobileScreensContainer from './components/layouts/MobileScreensContainer';
@@ -54,7 +54,7 @@ const App: React.FC = () => {
         status={authStatus}
       >
         <RainbowKitProvider
-          initialChain={chainId ?? baseSepolia}
+          initialChain={chainId ?? arbitrum}
           theme={lightTheme({
             accentColor: '#4200FF',
           })}
diff --git a/src/hooks/useAttestations.tsx b/src/hooks/useAttestations.tsx
index c3597fd..d43018b 100644
--- a/src/hooks/useAttestations.tsx
+++ b/src/hooks/useAttestations.tsx
@@ -23,6 +23,7 @@ interface ProcessedAttestation {
 
 const useAttestations = () => {
   const { address, chainId } = useAccount();
+
   const {
     data: attestationsResponse,
     error,
diff --git a/src/main.tsx b/src/main.tsx
index 5fdecdb..7c0a301 100644
--- a/src/main.tsx
+++ b/src/main.tsx
@@ -6,7 +6,7 @@ import { CssBaseline } from '@mui/material';
 import { getDefaultConfig } from '@rainbow-me/rainbowkit';
 import ReactDOM from 'react-dom/client';
 import { BrowserRouter } from 'react-router-dom';
-import { baseSepolia, optimismSepolia } from 'viem/chains';
+import { arbitrum, baseSepolia, optimismSepolia } from 'viem/chains';
 import { http, WagmiProvider } from 'wagmi';
 
 import App from './App';
@@ -17,12 +17,12 @@ if (!import.meta.env.VITE_PROJECT_ID) {
 }
 const projectID = import.meta.env.VITE_PROJECT_ID;
 
-export const SUPPORTED_CHAINS = [baseSepolia, optimismSepolia];
+export const SUPPORTED_CHAINS = [baseSepolia, optimismSepolia, arbitrum];
 
 const config = getDefaultConfig({
   appName: 'Identity on chain platform',
   projectId: projectID,
-  chains: [optimismSepolia, baseSepolia],
+  chains: [optimismSepolia, baseSepolia, arbitrum],
   transports: SUPPORTED_CHAINS.reduce(
     (obj, chain) => ({ ...obj, [chain.id]: http() }),
     {}
diff --git a/src/services/eas/index.ts b/src/services/eas/index.ts
index 4886341..b0c2a4a 100644
--- a/src/services/eas/index.ts
+++ b/src/services/eas/index.ts
@@ -4,8 +4,8 @@ export const chainIdToGraphQLEndpoint: { [key: number]: string } = {
   11155111: 'https://sepolia.easscan.org/graphql',
   11155420: 'https://optimism-sepolia-bedrock.easscan.org/graphql',
   84532: 'https://base-sepolia.easscan.org/graphql',
+  42161: 'https://arbitrum.easscan.org/graphql',
   // 1: "https://easscan.org/graphql",
-  // 42161: "https://arbitrum.easscan.org/graphql",
   // 42170: "https://arbitrum-nova.easscan.org/graphql",
   // 8453: "https://base.easscan.org/graphql",
   // 10: "https://optimism.easscan.org/graphql",
diff --git a/src/utils/contracts/app/contracts.ts b/src/utils/contracts/app/contracts.ts
index 9303a14..b21b89d 100644
--- a/src/utils/contracts/app/contracts.ts
+++ b/src/utils/contracts/app/contracts.ts
@@ -467,4 +467,238 @@ export const appContracts = [
       },
     ],
   },
+  {
+    chainId: 42_161,
+    address: '0x8006cCF2b3240bB716c86E5a16A9dD9b32eC5c53',
+    abi: [
+      {
+        inputs: [
+          {
+            internalType: 'address',
+            name: 'initialAuthority',
+            type: 'address',
+          },
+        ],
+        stateMutability: 'nonpayable',
+        type: 'constructor',
+      },
+      {
+        inputs: [
+          { internalType: 'address', name: 'authority', type: 'address' },
+        ],
+        name: 'AccessManagedInvalidAuthority',
+        type: 'error',
+      },
+      {
+        inputs: [
+          { internalType: 'address', name: 'caller', type: 'address' },
+          { internalType: 'uint32', name: 'delay', type: 'uint32' },
+        ],
+        name: 'AccessManagedRequiredDelay',
+        type: 'error',
+      },
+      {
+        inputs: [{ internalType: 'address', name: 'caller', type: 'address' }],
+        name: 'AccessManagedUnauthorized',
+        type: 'error',
+      },
+      { inputs: [], name: 'ReentrancyGuardReentrantCall', type: 'error' },
+      {
+        anonymous: false,
+        inputs: [
+          {
+            indexed: false,
+            internalType: 'uint256',
+            name: 'id',
+            type: 'uint256',
+          },
+          {
+            components: [
+              { internalType: 'uint256', name: 'id', type: 'uint256' },
+              { internalType: 'string', name: 'name', type: 'string' },
+              { internalType: 'address', name: 'account', type: 'address' },
+            ],
+            indexed: false,
+            internalType: 'struct IApplicationManager.Application',
+            name: 'application',
+            type: 'tuple',
+          },
+        ],
+        name: 'ApplicationCreated',
+        type: 'event',
+      },
+      {
+        anonymous: false,
+        inputs: [
+          {
+            indexed: false,
+            internalType: 'uint256',
+            name: 'id',
+            type: 'uint256',
+          },
+          {
+            components: [
+              { internalType: 'uint256', name: 'id', type: 'uint256' },
+              { internalType: 'string', name: 'name', type: 'string' },
+              { internalType: 'address', name: 'account', type: 'address' },
+            ],
+            indexed: false,
+            internalType: 'struct IApplicationManager.Application',
+            name: 'application',
+            type: 'tuple',
+          },
+        ],
+        name: 'ApplicationDeleted',
+        type: 'event',
+      },
+      {
+        anonymous: false,
+        inputs: [
+          {
+            indexed: false,
+            internalType: 'uint256',
+            name: 'id',
+            type: 'uint256',
+          },
+          {
+            components: [
+              { internalType: 'uint256', name: 'id', type: 'uint256' },
+              { internalType: 'string', name: 'name', type: 'string' },
+              { internalType: 'address', name: 'account', type: 'address' },
+            ],
+            indexed: false,
+            internalType: 'struct IApplicationManager.Application',
+            name: 'application',
+            type: 'tuple',
+          },
+        ],
+        name: 'ApplicationUpdated',
+        type: 'event',
+      },
+      {
+        anonymous: false,
+        inputs: [
+          {
+            indexed: false,
+            internalType: 'address',
+            name: 'authority',
+            type: 'address',
+          },
+        ],
+        name: 'AuthorityUpdated',
+        type: 'event',
+      },
+      {
+        inputs: [],
+        name: 'authority',
+        outputs: [{ internalType: 'address', name: '', type: 'address' }],
+        stateMutability: 'view',
+        type: 'function',
+      },
+      {
+        inputs: [
+          {
+            components: [
+              { internalType: 'string', name: 'name', type: 'string' },
+              { internalType: 'address', name: 'account', type: 'address' },
+            ],
+            internalType: 'struct IApplicationManager.ApplicationDto',
+            name: 'dto',
+            type: 'tuple',
+          },
+        ],
+        name: 'createApplication',
+        outputs: [],
+        stateMutability: 'nonpayable',
+        type: 'function',
+      },
+      {
+        inputs: [{ internalType: 'uint256', name: 'id', type: 'uint256' }],
+        name: 'deleteApplication',
+        outputs: [],
+        stateMutability: 'nonpayable',
+        type: 'function',
+      },
+      {
+        inputs: [{ internalType: 'uint256', name: 'id', type: 'uint256' }],
+        name: 'getApplication',
+        outputs: [
+          {
+            components: [
+              { internalType: 'uint256', name: 'id', type: 'uint256' },
+              { internalType: 'string', name: 'name', type: 'string' },
+              { internalType: 'address', name: 'account', type: 'address' },
+            ],
+            internalType: 'struct IApplicationManager.Application',
+            name: '',
+            type: 'tuple',
+          },
+        ],
+        stateMutability: 'view',
+        type: 'function',
+      },
+      {
+        inputs: [
+          { internalType: 'uint256', name: 'start', type: 'uint256' },
+          { internalType: 'uint256', name: 'limit', type: 'uint256' },
+        ],
+        name: 'getApplications',
+        outputs: [
+          {
+            components: [
+              { internalType: 'uint256', name: 'id', type: 'uint256' },
+              { internalType: 'string', name: 'name', type: 'string' },
+              { internalType: 'address', name: 'account', type: 'address' },
+            ],
+            internalType: 'struct IApplicationManager.Application[]',
+            name: '',
+            type: 'tuple[]',
+          },
+        ],
+        stateMutability: 'view',
+        type: 'function',
+      },
+      {
+        inputs: [],
+        name: 'getNextApplicationId',
+        outputs: [{ internalType: 'uint256', name: '', type: 'uint256' }],
+        stateMutability: 'view',
+        type: 'function',
+      },
+      {
+        inputs: [],
+        name: 'isConsumingScheduledOp',
+        outputs: [{ internalType: 'bytes4', name: '', type: 'bytes4' }],
+        stateMutability: 'view',
+        type: 'function',
+      },
+      {
+        inputs: [
+          { internalType: 'address', name: 'newAuthority', type: 'address' },
+        ],
+        name: 'setAuthority',
+        outputs: [],
+        stateMutability: 'nonpayable',
+        type: 'function',
+      },
+      {
+        inputs: [
+          { internalType: 'uint256', name: 'id', type: 'uint256' },
+          {
+            components: [
+              { internalType: 'string', name: 'name', type: 'string' },
+              { internalType: 'address', name: 'account', type: 'address' },
+            ],
+            internalType: 'struct IApplicationManager.ApplicationDto',
+            name: 'dto',
+            type: 'tuple',
+          },
+        ],
+        name: 'updateApplication',
+        outputs: [],
+        stateMutability: 'nonpayable',
+        type: 'function',
+      },
+    ],
+  },
 ];
diff --git a/src/utils/contracts/eas/constants.ts b/src/utils/contracts/eas/constants.ts
index 753ab96..2a10914 100644
--- a/src/utils/contracts/eas/constants.ts
+++ b/src/utils/contracts/eas/constants.ts
@@ -5,4 +5,5 @@ export const EAS_SCHEMA_ID: { [key: string | number]: string } = {
   11155420:
     '0x2c988095892ea57c600e5cc6fb62531502bc0c8d038ac39dc3fab161b6f122db',
   84532: '0xe8c59f8de4cdf61c8ebefa3ed83d714acc767dda3bbff00623e73f5a8bf5255f',
+  42161: '0x6b5b50f2de8b387664838bd3c751e21f6b9aac7cf4bf5b2fb86e760b89a8a22d',
 };
diff --git a/src/utils/contracts/eas/contracts.ts b/src/utils/contracts/eas/contracts.ts
index ae97aaf..a20726b 100644
--- a/src/utils/contracts/eas/contracts.ts
+++ b/src/utils/contracts/eas/contracts.ts
@@ -13,4 +13,11 @@ export const contracts = [
     easContractAddress: '0x4200000000000000000000000000000000000021',
     abi: [],
   },
+  {
+    chainId: 42_161,
+    easSchemaUUID:
+      '0x6b5b50f2de8b387664838bd3c751e21f6b9aac7cf4bf5b2fb86e760b89a8a22d',
+    easContractAddress: '0xbD75f629A22Dc1ceD33dDA0b68c546A1c035c458',
+    abi: [],
+  },
 ];
diff --git a/src/utils/contracts/oid/contracts.ts b/src/utils/contracts/oid/contracts.ts
index 9e2d948..23380a0 100644
--- a/src/utils/contracts/oid/contracts.ts
+++ b/src/utils/contracts/oid/contracts.ts
@@ -317,4 +317,163 @@ export const oidContracts = [
       },
     ],
   },
+  {
+    chainId: 42_161,
+    address: '0x9a85Bb58CFb60ABd205c4Af7039fF73C86b41bd8',
+    abi: [
+      {
+        inputs: [
+          {
+            internalType: 'address',
+            name: 'initialAuthority',
+            type: 'address',
+          },
+          {
+            internalType: 'contract IEAS',
+            name: 'initialEAS',
+            type: 'address',
+          },
+        ],
+        stateMutability: 'nonpayable',
+        type: 'constructor',
+      },
+      {
+        inputs: [
+          { internalType: 'address', name: 'authority', type: 'address' },
+        ],
+        name: 'AccessManagedInvalidAuthority',
+        type: 'error',
+      },
+      {
+        inputs: [
+          { internalType: 'address', name: 'caller', type: 'address' },
+          { internalType: 'uint32', name: 'delay', type: 'uint32' },
+        ],
+        name: 'AccessManagedRequiredDelay',
+        type: 'error',
+      },
+      {
+        inputs: [{ internalType: 'address', name: 'caller', type: 'address' }],
+        name: 'AccessManagedUnauthorized',
+        type: 'error',
+      },
+      {
+        inputs: [
+          { internalType: 'bytes32', name: 'attestation_uid', type: 'bytes32' },
+        ],
+        name: 'AttestationNotFound',
+        type: 'error',
+      },
+      {
+        inputs: [
+          { internalType: 'bytes32', name: 'attestation_uid', type: 'bytes32' },
+        ],
+        name: 'AttestationRevoked',
+        type: 'error',
+      },
+      {
+        inputs: [{ internalType: 'address', name: 'caller', type: 'address' }],
+        name: 'UnauthorizedAccess',
+        type: 'error',
+      },
+      {
+        anonymous: false,
+        inputs: [
+          {
+            indexed: false,
+            internalType: 'address',
+            name: 'authority',
+            type: 'address',
+          },
+        ],
+        name: 'AuthorityUpdated',
+        type: 'event',
+      },
+      {
+        anonymous: false,
+        inputs: [
+          {
+            indexed: false,
+            internalType: 'bytes32',
+            name: 'key',
+            type: 'bytes32',
+          },
+          {
+            indexed: false,
+            internalType: 'address',
+            name: 'account',
+            type: 'address',
+          },
+          {
+            indexed: false,
+            internalType: 'bool',
+            name: 'granted',
+            type: 'bool',
+          },
+        ],
+        name: 'PermissionUpdated',
+        type: 'event',
+      },
+      {
+        inputs: [],
+        name: 'authority',
+        outputs: [{ internalType: 'address', name: '', type: 'address' }],
+        stateMutability: 'view',
+        type: 'function',
+      },
+      {
+        inputs: [],
+        name: 'eas',
+        outputs: [{ internalType: 'contract IEAS', name: '', type: 'address' }],
+        stateMutability: 'view',
+        type: 'function',
+      },
+      {
+        inputs: [
+          { internalType: 'bytes32', name: 'attestation_uid', type: 'bytes32' },
+          { internalType: 'address', name: 'account', type: 'address' },
+        ],
+        name: 'grantPermission',
+        outputs: [],
+        stateMutability: 'nonpayable',
+        type: 'function',
+      },
+      {
+        inputs: [
+          { internalType: 'bytes32', name: 'key', type: 'bytes32' },
+          { internalType: 'address', name: 'account', type: 'address' },
+        ],
+        name: 'hasPermission',
+        outputs: [{ internalType: 'bool', name: '', type: 'bool' }],
+        stateMutability: 'view',
+        type: 'function',
+      },
+      {
+        inputs: [],
+        name: 'isConsumingScheduledOp',
+        outputs: [{ internalType: 'bytes4', name: '', type: 'bytes4' }],
+        stateMutability: 'view',
+        type: 'function',
+      },
+      {
+        inputs: [
+          { internalType: 'bytes32', name: 'attestation_uid', type: 'bytes32' },
+          { internalType: 'address', name: 'account', type: 'address' },
+        ],
+        name: 'revokePermission',
+        outputs: [],
+        stateMutability: 'nonpayable',
+        type: 'function',
+      },
+      {
+        inputs: [
+          { internalType: 'address', name: 'newAuthority', type: 'address' },
+        ],
+        name: 'setAuthority',
+        outputs: [],
+        stateMutability: 'nonpayable',
+        type: 'function',
+      },
+    ],
+  },
 ];