diff --git a/package-lock.json b/package-lock.json
index 05439d3..0d83dbf 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -91,7 +91,6 @@
       "integrity": "sha512-e7jT4DxYvIDLk1ZHmU/m/mB19rex9sv0c2ftBtjSBv+kVM/902eh0fINUzD7UwLLNR+jU585GxUJ8/EBfAM5fw==",
       "dev": true,
       "license": "MIT",
-      "peer": true,
       "dependencies": {
         "@babel/code-frame": "^7.27.1",
         "@babel/generator": "^7.28.5",
@@ -3881,7 +3880,6 @@
       "integrity": "sha512-tbsV1jPne5CkFQCgPBcDOt30ItF7aJoZL997JSF7MhGQqOeT3svWRYxiqlfA5RUdlHN6Fi+EI9bxqbdyAUZjYQ==",
       "dev": true,
       "license": "BSD-2-Clause",
-      "peer": true,
       "dependencies": {
         "@typescript-eslint/scope-manager": "6.21.0",
         "@typescript-eslint/types": "6.21.0",
@@ -4142,7 +4140,6 @@
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       "dev": true,
       "license": "MIT",
-      "peer": true,
       "bin": {
         "acorn": "bin/acorn"
       },
@@ -4509,7 +4506,6 @@
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       ],
       "license": "MIT",
-      "peer": true,
       "dependencies": {
         "baseline-browser-mapping": "^2.8.19",
         "caniuse-lite": "^1.0.30001751",
@@ -5390,7 +5386,6 @@
       "deprecated": "This version is no longer supported. Please see https://eslint.org/version-support for other options.",
       "dev": true,
       "license": "MIT",
-      "peer": true,
       "dependencies": {
         "@eslint-community/eslint-utils": "^4.2.0",
         "@eslint-community/regexpp": "^4.6.1",
@@ -6053,7 +6048,6 @@
       "resolved": "https://registry.npmjs.org/graphql/-/graphql-16.11.0.tgz",
       "integrity": "sha512-mS1lbMsxgQj6hge1XZ6p7GPhbrtFwUFYi3wRzXAC/FmYnyXMTvvI3td3rjmQ2u8ewXueaSvRPWaEcgVVOT9Jnw==",
       "license": "MIT",
-      "peer": true,
       "engines": {
         "node": "^12.22.0 || ^14.16.0 || ^16.0.0 || >=17.0.0"
       }
@@ -7073,7 +7067,6 @@
       "integrity": "sha512-NIy3oAFp9shda19hy4HK0HRTWKtPJmGdnvywu01nOqNC2vZg+Z+fvJDxpMQA88eb2I9EcafcdjYgsDthnYTvGw==",
       "dev": true,
       "license": "MIT",
-      "peer": true,
       "dependencies": {
         "@jest/core": "^29.7.0",
         "@jest/types": "^29.6.3",
@@ -8391,7 +8384,6 @@
       "resolved": "https://registry.npmjs.org/node-fetch/-/node-fetch-2.7.0.tgz",
       "integrity": "sha512-c4FRfUm/dbcWZ7U+1Wq0AwCyFL+3nt2bEw05wfxSz+DWpWsitgmSgYmy2dQdWyKC1694ELPqMs/YzUSNozLt8A==",
       "license": "MIT",
-      "peer": true,
       "dependencies": {
         "whatwg-url": "^5.0.0"
       },
@@ -10028,7 +10020,6 @@
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       "devOptional": true,
       "license": "Apache-2.0",
-      "peer": true,
       "bin": {
         "tsc": "bin/tsc",
         "tsserver": "bin/tsserver"
@@ -10161,7 +10152,6 @@
       "resolved": "https://registry.npmjs.org/undici/-/undici-5.29.0.tgz",
       "integrity": "sha512-raqeBD6NQK4SkWhQzeYKd1KmIG6dllBOTt55Rmkt4HtI9mwdWtJljnrXjAFUBLTSN67HWrOIZ3EPF4kjUw80Bg==",
       "license": "MIT",
-      "peer": true,
       "dependencies": {
         "@fastify/busboy": "^2.0.0"
       },
@@ -10497,7 +10487,6 @@
       "resolved": "https://registry.npmjs.org/ws/-/ws-8.17.1.tgz",
       "integrity": "sha512-6XQFvXTkbfUOZOKKILFG1PDK2NDQs4azKQl26T0YS5CxqWLgXajbPZ+h4gZekJyRqFU8pvnbAbbs/3TgRPy+GQ==",
       "license": "MIT",
-      "peer": true,
       "engines": {
         "node": ">=10.0.0"
       },
diff --git a/src/core/contracts.ts b/src/core/contracts.ts
index 6541f25..a19827f 100644
--- a/src/core/contracts.ts
+++ b/src/core/contracts.ts
@@ -508,6 +508,16 @@ export const DEFAULT_REGISTRIES: Record<ChainId, Record<string, string>> = {
     REPUTATION: '0x8004B663056A597Dffe9eCcC1965A193B7388713',
     // VALIDATION: not deployed in defaults yet
   },
+  421614: {
+    // Arbitrum Sepolia
+    IDENTITY: '0x8004A818BFB912233c491871b3d84c89A494BD9e',
+    REPUTATION: '0x8004B663056A597Dffe9eCcC1965A193B7388713'
+  },
+  42161: {
+    // Arbitrum One
+    IDENTITY: '0x8004A169FB4a3325136EB29fA0ceB6D2e539a432',
+    REPUTATION: '0x8004BAa17C55a88189AE136b182e5fdA19dE9b63'
+  }
 };
 
 /**
@@ -522,5 +532,7 @@ export const DEFAULT_SUBGRAPH_URLS: Record<ChainId, string> = {
   84532:
     'https://gateway.thegraph.com/api/536c6d8572876cabea4a4ad0fa49aa57/subgraphs/id/4yYAvQLFjBhBtdRCY7eUWo181VNoTSLLFd5M7FXQAi6u', // Base Sepolia
   137: 'https://gateway.thegraph.com/api/782d61ed390e625b8867995389699b4c/subgraphs/id/9q16PZv1JudvtnCAf44cBoxg82yK9SSsFvrjCY9xnneF', // Polygon Mainnet
+  421614: "https://gateway.thegraph.com/api/4d3e61e064765d1001ee86baba46a907/subgraphs/id/6WuFQqo3FR5F76fCR4Bkfnymu64S5iu2tgX7JZsxQxg9", // Arbitrum Sepolia
+  42161: "https://gateway.thegraph.com/api/61fa508eec436e052c9159527d4c8bb1/subgraphs/id/HZ6yKjjbYpkLTXLJBxfe4HWN3jxkLfLNJXh4zeVj1t9L" // Arbitrum One
 };