Evidence row 32754

What was observed

{
  "endpoints": [
    [
      "mcp",
      "https://api.collarguardrail.com/mcp-http/mcp"
    ],
    [
      "web",
      "https://collarguardrail.com/"
    ]
  ],
  "name": "Collar Guardrail — Pre-Trade Risk Layer",
  "owner_address": null,
  "raw": {
    "_meta": {
      "io.modelcontextprotocol.registry/official": {
        "isLatest": true,
        "publishedAt": "2026-10-06T20:09:22.543918Z",
        "status": "active",
        "statusChangedAt": "2026-10-06T20:09:22.543918Z",
        "updatedAt": "2026-10-06T20:09:22.543918Z"
      }
    },
    "server": {
      "$schema": "https://static.modelcontextprotocol.io/schemas/2025-12-11/server.schema.json",
      "description": "Deterministic pre-trade risk checks for AI agents on Robinhood Chain. Returns allow/warn/deny.",
      "name": "io.github.aiguardrail/backend",
      "remotes": [
        {
          "type": "streamable-http",
          "url": "https://api.collarguardrail.com/mcp-http/mcp"
        }
      ],
      "repository": {
        "source": "github",
        "url": "https://github.com/aiguardrail/backend-mcp"
      },
      "title": "Collar Guardrail — Pre-Trade Risk Layer",
      "version": "1.0.5",
      "websiteUrl": "https://collarguardrail.com"
    }
  },
  "source": "mcp_registry",
  "summary": "Deterministic pre-trade risk checks for AI agents on Robinhood Chain. Returns allow/warn/deny."
}

What the leaf hashes

{"body":"56aeb895c80fae65027ef0f8e9d62289b830b0e5002f14e5d17944977973ec66","id":32754,"kind":"listing","method":"baseline/1","observed_us":1793025366894338,"prev":null,"subject":"mcp_registry:io.github.aiguardrail/backend","subject_kind":"source_record"}

Proof

Fold these into the leaf in order, hashing each sorted pair with keccak256, to reach the root of 2026-10-26 (296695 rows).

1. 0x7d62feee911acfa1b45679c5c4100358b7344266f1224308a0eb03bd19d9c6fa
2. 0xa3076d8703ccb7d1f1ceaeab0bfb192b9c06f8a6fd4d9ab7a89be36f7781cbe1
3. 0x72f9b5631364377eb4fb8b467942517887b8d6ebf8ed9cf8037d4c51084ff972
4. 0xae940abe6751fa89533e4aabea3af033a9a8217ce0eed61b8f972f4d40a7781b
5. 0x2f0bf06cb1c0c24d4a81a708fe57bdd796062beff68189d987c8fa1ab2475d70
6. 0xc6bbb4692a9961012bb8299af46223a45a55ecaee8172896840d26e60f5e6960
7. 0xaf2bfd0f6427ca2b6d16517d8ffd241fa0881fcca4396b2740ac1447a6e66a78
8. 0x96b7200677b850962ea5e7adcee58aa735c746a6090fdbf3a8e151a0763f129e
9. 0x7cb84485c6b902c49734720bca3a33ab18427e01cb45da3f781a9f5899f3a01c
10. 0x27bb9eefd00206cde7209859f541e1ae68cb3baba4968278bfa6a4028b0fe719
11. 0x05b818019343d04f2973b36329a447f88301721891653961b94822610edda553
12. 0x779c77295186b32da6387dfb36d3a76522e7d713472a7cebed7c93529ccc4be6
13. 0x0bffb634300aa5609bddaa79e8d31d7cde36c0a5a4465472f809b9f5287e40d2
14. 0x7721d38652b6444b18e1193824e50490ade04851ce6221771f6e374c4527d80f
15. 0x15039087bf60ae9b06b756ec3cbc299760e59923a438bbd91e34d105186db0ed
16. 0x2b6e23e3624a1b66e1d2298cfbce99a93ce6b13d24a58112a71802d79c5f7a76
17. 0xd21942ae3214eff88e08ab04884fd4b11958b51af9a0741b7668e2d07a2c56c9
18. 0x9a9024edb5069d88a324facb310a5ce8e495214bbaa968f077bede437390194f
19. 0x9b9ce5b74b9bab5121612ef6b64920a8d453cbf311096a423eef9702747e868a

Day root

0xf43e8dcc3d451a4788b26be904c55e8c4c0fa75c9666796c51db38d37e2c0df8

Chained

0x702d5ac508f08b0d1accf36af25822d8e5660367494edd17a642fb61e158a57a

Published

On Arc Testnet, block 69251483: 0x495162f8936e19f0039918feebe6c307f327cd6bf8c37219620b1970041fa9ae