Evidence row 2565033

What was observed

{
  "endpoints": [
    [
      "web",
      "https://usefulapi.io/youtube-data/"
    ],
    [
      "mcp",
      "https://youtube-data.usefulapi.io/mcp"
    ]
  ],
  "name": "YouTube Data MCP by usefulapi",
  "owner_address": null,
  "raw": {
    "_meta": {
      "io.modelcontextprotocol.registry/official": {
        "isLatest": true,
        "publishedAt": "2026-11-03T09:55:26.978969Z",
        "status": "active",
        "statusChangedAt": "2026-11-03T09:55:26.978969Z",
        "updatedAt": "2026-11-03T09:55:26.978969Z"
      }
    },
    "server": {
      "$schema": "https://static.modelcontextprotocol.io/schemas/2025-12-11/server.schema.json",
      "description": "Search videos; read channels, playlists, comments and popular videos in YouTube.",
      "icons": [
        {
          "mimeType": "image/svg+xml",
          "sizes": [
            "any"
          ],
          "src": "https://usefulapi.io/icon.svg"
        },
        {
          "mimeType": "image/png",
          "sizes": [
            "256x256"
          ],
          "src": "https://usefulapi.io/icon-256.png"
        },
        {
          "mimeType": "image/png",
          "sizes": [
            "512x512"
          ],
          "src": "https://usefulapi.io/icon-512.png"
        }
      ],
      "name": "io.usefulapi/youtube-data",
      "remotes": [
        {
          "type": "streamable-http",
          "url": "https://youtube-data.usefulapi.io/mcp"
        }
      ],
      "repository": {
        "source": "github",
        "subfolder": "servers/youtube-data",
        "url": "https://github.com/m190/usefulapi-mcp"
      },
      "title": "YouTube Data MCP by usefulapi",
      "version": "1.2.0",
      "websiteUrl": "https://usefulapi.io/youtube-data/"
    }
  },
  "source": "mcp_registry",
  "summary": "Search videos; read channels, playlists, comments and popular videos in YouTube."
}

What the leaf hashes

{"body":"192e9e93e45af4526748a5e7a133d6ccf92841f0f4b36530435eb33ea9ab1875","id":2565033,"kind":"listing","method":"sync.mcp_registry/1","observed_us":1793701164481832,"prev":2546929,"subject":"mcp_registry:io.usefulapi/youtube-data","subject_kind":"source_record"}

Proof

Fold these into the leaf in order, hashing each sorted pair with keccak256, to reach the root of 2026-11-03 (425475 rows).

1. 0x9f93fadf6f3c719f107edbf91bde81faf22157cd8735078826e6651c820d208a
2. 0xc2a6fa72f1c33bc095a2a9905517d464ce8227c7ac4919c34ec0a10b0b2c9574
3. 0xefbb7148a4547b4fdac62e9907c41150852dba927fe9f20e5dfe853f8e570ad3
4. 0xbb8e2b9e6404395eed00f3d25985072c55ac453d5260062c217128380a8b7b69
5. 0xcdae3a3d0f2d8b677bb798d65fd31b7b1bccc12b9cd94d60c2984739411c04e3
6. 0x33281a2d419fe5e8566254ed1f9b6ac4fa8405a34c8095fe0727ffdef1254bd9
7. 0x4674eab59b07b752c972cbdaa6555706e5b8310ef27519111edafc9f0be192f8
8. 0xadb54765c29f4409d0cb693725b029d4e10fb9de27d88144efbc68daa36b15cc
9. 0x64d4b37820a0e2a84741cecbeb7dfd2af6a5f87aadfba2b7f80da0daf4163e70
10. 0x05fbacee16d214d2b5c269801e3979b046c0cd6cf25940180de3879437b5773a
11. 0xef7699fd6254ffb0ccebe16b632ba720842cda5dd0783b11cc45073c44d3efc5
12. 0xb47b1f6faea714cc97fa97c8755c79e0e099a2dbf305cfc6e721cc7118fd4160
13. 0x8070cbe0685f508360b5b1120601afa35a96b721c6cad8ddc83334fbabead425
14. 0xe49428eac50d81f1f7650588e082bd418a927c143f69fb66decc0ace1ad681d0
15. 0xc8c3351be4f517ca5732d6f5ee3d1d64170b8e4410d31b9c614949031fbc07a0
16. 0xdbc1c0882584cff2eba84dcd18af41b5fd070127c962a21b00db1ec3e352cc94
17. 0x39dab39081985bbfffe23b080399a9d1a9cb9c2c8960102350c4212113cb2cba
18. 0xac5402954216dc6c7020a6405675c8fc3b0828c2ab02943d80de52677a2f1fc3
19. 0x85f3a27c16056a361d9ba33355a575ca7123f86de901b204c88953c4b8ea441a

Day root

0xb646ffa569e24bf8336b0a15a9d98d0a2f1239f58e10c2b18a9d22e43343566a

Chained

0x35e926359fd19031c6b5e08fb3b44f2524386a57c8fdd353336c185603f53d43

Published

On Arc Testnet, block 70601990: 0xa5f9dadba13cde129126b950e64b815e6833cb8ff53b75026c9dbe769c3768c7