Evidence row 2726887

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": "2026-11-03T22:30:49.027849Z",
        "status": "active",
        "statusChangedAt": "2026-11-03T22:30:49.027849Z",
        "updatedAt": "2026-11-03T22:30:49.027849Z"
      }
    },
    "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": "1.2.1",
      "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":"458433c5d9e7455992d3c5ef47591d757ff6085411e3f64d33cee233c2f7ec06","id":2726887,"kind":"listing","method":"sync.mcp_registry/1","observed_us":1793747995556643,"prev":2565033,"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. 0xace2810f4a3e5f63786cda35d6c310d41a905c483c0b16b5590e292eaeac0b66
2. 0x41807bd6721edebc7fe52c6d700e885c5c159977ebc36fe8a4414aed37f543c8
3. 0x319221156c0f36fb16091e469c358a9ef841366692efd12bd901c64e101a52a1
4. 0xb6e2c33c16914e3333b73352fd8091aa15339ac7b78c75b2e118372ea80377ee
5. 0xec7e90250405868ff2e18aed9e2ac8653c16d19707fad8d9d3a81ec17220db3e
6. 0xdc2e2d9a1d595ae1ba07632c90b51e99388b5dcb04c76514274a865a9bc5b4bf
7. 0xb6191ba882ba2ae88535368f4af101552da1fa589c7cd9e6551155928b06e903
8. 0x014486916cb38c1420ed60145854d35babdc5b6255e561005de230e59ab391c8
9. 0x04e29f8a84e40a041ff10342fd4dad3314889b164fb77ab8afc2c831b8580734
10. 0x9ed01016cf0fa2cadf2c39cc6b431b2412a0b06c024f797c9511d731f1167a69
11. 0x86d26e4c4762ca402e729a70d6ece667505867ca5d8687c19b7addfd537becaa
12. 0xf7173671a7b11cbb3195ead076ffb9c5bc20e919f6e94869c79a4833d639ee94
13. 0x2fa7ae547fe2821a8a9486286acf00c71cf2a484341c8e82886e07422fc0861e
14. 0x11934b37b54663f98169a4c48cc2b0a60fa4a3c4018d1ce3e508ac01ae614249
15. 0xa538822e863ef8366c4eb66bf75faf8a639aa1f066f65f7444fa54d54d48ec53
16. 0xdbc1c0882584cff2eba84dcd18af41b5fd070127c962a21b00db1ec3e352cc94
17. 0x39dab39081985bbfffe23b080399a9d1a9cb9c2c8960102350c4212113cb2cba
18. 0xac5402954216dc6c7020a6405675c8fc3b0828c2ab02943d80de52677a2f1fc3
19. 0x85f3a27c16056a361d9ba33355a575ca7123f86de901b204c88953c4b8ea441a

Day root

0xb646ffa569e24bf8336b0a15a9d98d0a2f1239f58e10c2b18a9d22e43343566a

Chained

0x35e926359fd19031c6b5e08fb3b44f2524386a57c8fdd353336c185603f53d43

Published

On Arc Testnet, block 70601990: 0xa5f9dadba13cde129126b950e64b815e6833cb8ff53b75026c9dbe769c3768c7