Evidence row 30240

What was observed

{
  "endpoints": [
    [
      "web",
      "https://www.opentrain.ai/docs/developers/overview"
    ]
  ],
  "name": "OpenTrain",
  "owner_address": null,
  "raw": {
    "_meta": {
      "io.modelcontextprotocol.registry/official": {
        "isLatest": true,
        "publishedAt": "2026-06-15T10:07:16.22741Z",
        "status": "active",
        "statusChangedAt": "2026-06-15T10:07:16.22741Z",
        "updatedAt": "2026-06-15T10:07:16.22741Z"
      }
    },
    "server": {
      "$schema": "https://static.modelcontextprotocol.io/schemas/2025-12-11/server.schema.json",
      "description": "Hire human data labelers, RLHF annotators, and evaluators from your coding agent.",
      "name": "io.github.OpenTrain-AI/opentrain",
      "packages": [
        {
          "environmentVariables": [
            {
              "description": "OpenTrain personal API token (ot_pat_...). Optional: if absent, the server can register an anonymous agent account at runtime for a human to claim.",
              "isSecret": true,
              "name": "OPENTRAIN_PERSONAL_API_TOKEN"
            },
            {
              "default": "https://app.opentrain.ai",
              "description": "OpenTrain API base URL. Defaults to https://app.opentrain.ai.",
              "name": "OPENTRAIN_API_BASE_URL"
            }
          ],
          "identifier": "@opentrain-ai/mcp",
          "registryBaseUrl": "https://registry.npmjs.org",
          "registryType": "npm",
          "runtimeHint": "npx",
          "transport": {
            "type": "stdio"
          },
          "version": "0.2.2"
        }
      ],
      "repository": {
        "source": "github",
        "subfolder": "packages/opentrain-mcp",
        "url": "https://github.com/OpenTrain-AI/OpenTrain-Platform-Monorepo"
      },
      "title": "OpenTrain",
      "version": "0.2.2",
      "websiteUrl": "https://www.opentrain.ai/docs/developers/overview"
    }
  },
  "source": "mcp_registry",
  "summary": "Hire human data labelers, RLHF annotators, and evaluators from your coding agent."
}

What the leaf hashes

{"body":"b4faf2e760e9375d6d75e16946cc2d64e5d5775e72afb6a37ae52a28a8729a6c","id":30240,"kind":"listing","method":"baseline/1","observed_us":1793025362758366,"prev":null,"subject":"mcp_registry:io.github.OpenTrain-AI/opentrain","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. 0x898195649405c231088abe5d8fd94a7d5cd34f1b7967d55bc0cc5d34b9e0a35b
2. 0x81d21ef906e9858ffee99b4cfe348177ede4cb62f43607eb71957bd496b7b8e4
3. 0xbf774813242c9d44fe4a36d547505349734c5064020fa791fc046c0baae2ab2c
4. 0xdbcf53bbc126e6335763a7b349c2619f5cb9911519ca4ac1cf3e2866f49f10e8
5. 0x703555d5e40d115b60489b6d906fc8a6fb06ea8d0b38b74ed4da5d2a35b42c44
6. 0xeddba9d94bf5c27a01b5163cb173cf4c305112234c749819547d8ad4c2a25191
7. 0x8645bd3b07b66470cc1e21b146cfdce0a72a7247106f8b0a73bed7e409867b18
8. 0xcab251f3c1164b19991eafe31c660f8346cca85987a7eaef4e741cd9148888fb
9. 0x192f267e109dd5199cc6815d8da47fe9caf57c9a98a433d79529a101ca711d19
10. 0xd59efd9db013aa86250da9a9746114e4191807e34e70119d7d7cdcde2bea60fe
11. 0xfb2bf7248df06c668bce5c2fce26586eb8982728138c40f164c1666cb3e32d7b
12. 0x7bf2d426bb827b94d7608055662cf2e3f09791e1a4c2c6bd606c0a9e89b18e59
13. 0x49d11be052a4c069b10250aaba214f566b3f2e5aaa7a98e82ccc6a71c0e801a0
14. 0x78ac2b34737774659a6a411f4d10b8ba570d40699d9f277321c3a32ff03d1dc9
15. 0x7eb603d37f0f22dae1ea013e391889906ffc0139ff26e25b044bee38eec8f9b2
16. 0x2b6e23e3624a1b66e1d2298cfbce99a93ce6b13d24a58112a71802d79c5f7a76
17. 0xd21942ae3214eff88e08ab04884fd4b11958b51af9a0741b7668e2d07a2c56c9
18. 0x9a9024edb5069d88a324facb310a5ce8e495214bbaa968f077bede437390194f
19. 0x9b9ce5b74b9bab5121612ef6b64920a8d453cbf311096a423eef9702747e868a

Day root

0xf43e8dcc3d451a4788b26be904c55e8c4c0fa75c9666796c51db38d37e2c0df8

Chained

0x702d5ac508f08b0d1accf36af25822d8e5660367494edd17a642fb61e158a57a

Published

On Arc Testnet, block 69251483: 0x495162f8936e19f0039918feebe6c307f327cd6bf8c37219620b1970041fa9ae