Evidence row 52403

What was observed

{
  "endpoints": [
    [
      "mcp",
      "https://causallayer-mcp-demo.zykm9qkk7j.workers.dev/mcp"
    ],
    [
      "web",
      "https://faultkey.com/"
    ]
  ],
  "name": "FaultKey · CausalLayer",
  "owner_address": null,
  "raw": {
    "_meta": {
      "io.modelcontextprotocol.registry/official": {
        "isLatest": true,
        "publishedAt": "2026-05-16T15:48:39.301865Z",
        "status": "active",
        "statusChangedAt": "2026-05-16T15:48:39.301865Z",
        "updatedAt": "2026-05-16T15:48:39.301865Z"
      }
    },
    "server": {
      "$schema": "https://static.modelcontextprotocol.io/schemas/2025-12-11/server.schema.json",
      "_meta": {
        "io.modelcontextprotocol.registry/publisher-provided": {
          "byte_identical_reproducible": true,
          "categories": [
            "ai-governance",
            "liability",
            "regtech",
            "security",
            "audit",
            "compliance"
          ],
          "compliance_mappings": [
            "APRA CPS 230",
            "EU AI Act",
            "ISO/IEC 42001",
            "NIST AI RMF"
          ],
          "deterministic": true,
          "tool": "wrangler",
          "uses_llm": false,
          "verification_method": "Independent third-party with Node.js built-in crypto",
          "version": "4.14.4"
        }
      },
      "description": "Deterministic AI-liability attribution: signed, Bitcoin-anchored vendor/deployer/user fault split.",
      "name": "io.github.smq9sn5jck-cloud/causallayer-mcp",
      "remotes": [
        {
          "type": "streamable-http",
          "url": "https://causallayer-mcp-demo.zykm9qkk7j.workers.dev/mcp"
        }
      ],
      "repository": {
        "source": "github",
        "url": "https://github.com/smq9sn5jck-coder/causallayer-mcp"
      },
      "title": "FaultKey · CausalLayer",
      "version": "0.2.0",
      "websiteUrl": "https://faultkey.com"
    }
  },
  "source": "mcp_registry",
  "summary": "Deterministic AI-liability attribution: signed, Bitcoin-anchored vendor/deployer/user fault split."
}

What the leaf hashes

{"body":"870b27c2f0581e28a1acadf8a62a9bd24b212a6c248f93753c17434e6a2d20e4","id":52403,"kind":"listing","method":"baseline/1","observed_us":1793025419862355,"prev":null,"subject":"mcp_registry:io.github.smq9sn5jck-cloud/causallayer-mcp","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. 0x84832c2c267102947cebd2eb48a2e0525b169e4095a287bfb91733c0064214bd
2. 0x71ccac2039fd5a5df6abe7c05621f0dcec21cfa57e6d7a76fc0a5bd1f4594fd3
3. 0x3d54308c9cb025036ab5dc6d439101cf2a2293cf7e1c5013d6a5f60be7251b19
4. 0x04456bf2b066f7b3e07515d85a680d5d6606c1ea4d2ab429fd2e5f24781c1d9a
5. 0x6c25bc149d0b74db9cbcf3640a22ac58c6411fb47aa230f2bd4afc6dbf7a2715
6. 0x92210582b31dd3d168145c2c486ec47f498aea4b8cc460306c417a513d9317fe
7. 0xabcebae630b061dfd5defc3ca4c7a71d653500ae627c27d81764ec65d7735b79
8. 0x1ee6c1386f40a5635cfc7ef2bd47cf215f72ffd97a6a9d59c787e72300e0b0a2
9. 0x6f20f3f96eb5fe347acc5dc3faf1cd2aaeb54dd43030bce2efc76fa38c29ea26
10. 0xbd61f8ccc42a3dedbb87058ee9b8aa973f0189e5171c2843edd9ca490c36ad87
11. 0xdb4295ae338449b07243daebee8c36f16b3aaca1599a8f860eb80e22bca21e79
12. 0xfdaa032291ded0df2cf35d6e9dc6e7a2643d0fe027dd3ab321971f1f7bf69147
13. 0x91c2ae93ec20c7fed5088112fe3941ca622dfb3f8f1022c4844726c361244bd4
14. 0x0eff463856b0992d53ab7d8c0b97c71541413358bdd445710c1e4b6aeb4d8f78
15. 0x7eb603d37f0f22dae1ea013e391889906ffc0139ff26e25b044bee38eec8f9b2
16. 0x2b6e23e3624a1b66e1d2298cfbce99a93ce6b13d24a58112a71802d79c5f7a76
17. 0xd21942ae3214eff88e08ab04884fd4b11958b51af9a0741b7668e2d07a2c56c9
18. 0x9a9024edb5069d88a324facb310a5ce8e495214bbaa968f077bede437390194f
19. 0x9b9ce5b74b9bab5121612ef6b64920a8d453cbf311096a423eef9702747e868a

Day root

0xf43e8dcc3d451a4788b26be904c55e8c4c0fa75c9666796c51db38d37e2c0df8

Chained

0x702d5ac508f08b0d1accf36af25822d8e5660367494edd17a642fb61e158a57a

Published

On Arc Testnet, block 69251483: 0x495162f8936e19f0039918feebe6c307f327cd6bf8c37219620b1970041fa9ae