Evidence row 55330

What was observed

{
  "endpoints": [
    [
      "mcp",
      "https://mcp.xyzzylabs.ai/tc39/mcp"
    ],
    [
      "web",
      "https://mcp.xyzzylabs.ai/tc39"
    ]
  ],
  "name": "tc39-mcp",
  "owner_address": null,
  "raw": {
    "_meta": {
      "io.modelcontextprotocol.registry/official": {
        "isLatest": true,
        "publishedAt": "2026-10-07T15:33:45.308105Z",
        "status": "active",
        "statusChangedAt": "2026-10-07T15:33:45.308105Z",
        "updatedAt": "2026-10-07T15:33:45.308105Z"
      }
    },
    "server": {
      "$schema": "https://static.modelcontextprotocol.io/schemas/2025-12-11/server.schema.json",
      "description": "Independent MCP server for the TC39 specs (ECMA-262 + ECMA-402): clauses, search, diffs, history.",
      "name": "io.github.xyzzylabs/tc39-mcp",
      "packages": [
        {
          "identifier": "tc39-mcp",
          "registryType": "npm",
          "transport": {
            "type": "stdio"
          },
          "version": "0.6.4"
        }
      ],
      "remotes": [
        {
          "type": "streamable-http",
          "url": "https://mcp.xyzzylabs.ai/tc39/mcp"
        }
      ],
      "repository": {
        "source": "github",
        "url": "https://github.com/xyzzylabs/tc39-mcp"
      },
      "title": "tc39-mcp",
      "version": "0.6.4",
      "websiteUrl": "https://mcp.xyzzylabs.ai/tc39"
    }
  },
  "source": "mcp_registry",
  "summary": "Independent MCP server for the TC39 specs (ECMA-262 + ECMA-402): clauses, search, diffs, history."
}

What the leaf hashes

{"body":"e0875887b0836d48bfc0d68a018f1167e6f6f6002b0bce750879d23d3d28ab2a","id":55330,"kind":"listing","method":"baseline/1","observed_us":1793025434739289,"prev":null,"subject":"mcp_registry:io.github.xyzzylabs/tc39-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. 0x081bb1c6c4d75e154416897e2580ac171dfb38151ea8d4633785028bc8c5f6c7
2. 0xa0eeecc451631c2ced181f9cbb6c65dca72311b731bd8dc36b9a084925940f5c
3. 0xa9dc8a973327d7cb0e3c48f5324a3d078a13c1c2638a91c3f90c589b079c626c
4. 0x2605b3196cb1286a95d8f457c5ea0fc73cefbd5cae0a23d6114eff0ec6322b32
5. 0x650e46803a745b5a7143c5dd51d79fb2e9885889ba72c7bfb036091db5f5c71a
6. 0x2a08a8c0777434904fe78413e6ec6ffbd189cd82b9abe9bed2f959a7f743589f
7. 0x4782930777558e2f0603419939c0d40a8f76f0426926a09e424ddb7b877d93d5
8. 0x2aa2301df4b3b157575dee64ce0d7b75fa5eb24e9109931dc39893e1cb18e486
9. 0xeea4eb4b257a21cea79349051e304c9f01984afa83774c6509013ba81e058790
10. 0x286d15bd62bd4bdc9d226a5307435d38911f3c64d096f3d8addf809f96068fe4
11. 0xe5919b091405f2537da4d32a97f1520286a61795e2d149438b884ef5190051cc
12. 0x6003e14d04cde1d24b195ac15b568dd483e04047e0f2ff64d9632a51a8f7123d
13. 0xe5a836cf25a8dfc72c9e3b6a69a7561a1f61f50f9cf36707d36f6e926aa15dec
14. 0xa96bb9408ce00a0d40ddaba8736257dfce76d5478b131d69db1afdf8a824312b
15. 0x7ddc2fead128357f881b63e6c7c26d7fbbb84fca6c7c8e0bbfe386de86ca8d39
16. 0xc6a4d7899a0f442958e26505011190b7cff2483611c1b94eba9043e0ba9ac36e
17. 0x8c756542e482157df0c36464d75c937b845e4423dbbcfad08f0cf8d5a16b9a13
18. 0x20704208aa6923d6b2450ef74ede87a6e0265d46447926038fe9506e9e154b2d
19. 0x9b9ce5b74b9bab5121612ef6b64920a8d453cbf311096a423eef9702747e868a

Day root

0xf43e8dcc3d451a4788b26be904c55e8c4c0fa75c9666796c51db38d37e2c0df8

Chained

0x702d5ac508f08b0d1accf36af25822d8e5660367494edd17a642fb61e158a57a

Published

On Arc Testnet, block 69251483: 0x495162f8936e19f0039918feebe6c307f327cd6bf8c37219620b1970041fa9ae