Evidence row 2546929

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": "2026-11-03T07:15:53.390785Z",
        "status": "active",
        "statusChangedAt": "2026-11-03T07:15:53.390785Z",
        "updatedAt": "2026-11-03T07:15:53.390785Z"
      }
    },
    "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": "1.1.1",
      "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":"6b766607f32b1b71a13f5c31b8a6a16a1f595387f484c0ba0d4ae85801f8bd0a","id":2546929,"kind":"listing","method":"sync.mcp_registry/1","observed_us":1793690351906851,"prev":2130682,"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. 0xfcfe2d2432a9bd2978bb06c126185eaa394c5c06c6ab1c06882b762f63287c29
2. 0x79655b0587399acd67f59e07c7b2d1a612bc316ba57813c4588476204a623e6d
3. 0xf5ea2e82b3fdf32fd78a515ca0546622152cb6862d65457d5463bf11ad7fd32f
4. 0x5329bc7ebe92ff06e11f18a1a8b061e9c454f6444430ca0388cf9dd5d40d8b40
5. 0x8878a80007bad8f6c4402f6988976fae2be59a3936919ae08d942f53b6c480d0
6. 0x511bd7ceef2ab8218c85b6627ff80a9419e0bade2c8a6de275ace6dc50e6154a
7. 0x8ad3a3b683f4c9701e78ef32ee37ecdf85ed045a9e6c81a58a367be5a0e53fc5
8. 0xe4d1edd658fc6e6e8d9ac88fd9a6b6ac934a5465b95a2958e0bb37270f0696c2
9. 0x8d2466b850734f4ef5759865d06326f4517d55fec1c32cfed25fc117194b8e15
10. 0xe1c2082066e0f1a3b7a364e8307d960c5242268a5b7243a9473582d0edb8a5e7
11. 0x3ffa56b133492701f53143de0e29d572ec3792d1fd2f58e78953623483080ff8
12. 0x9beebae23e6ebd6d6b0bb00c7002e82c7e42625499974c6c936c5fe24f9a0f37
13. 0x60079cfab9dfee47546954dca240be72c67c7307edb40b9efb6dcbc22b705c62
14. 0x271cba1af45ae2133bb70993d2a8662bbad7bb8e8e0ab720853251f29efaee6d
15. 0xaaf692e701ee622e9e0fa24c7d0f9f672df8c586de5a6f0375f8cadaf0c678a1
16. 0xd60b16e6a71fbffc93a233ee89f916e50c0206a56f52c852b85e5a246b6b417c
17. 0x85f3a27c16056a361d9ba33355a575ca7123f86de901b204c88953c4b8ea441a

Day root

0xb646ffa569e24bf8336b0a15a9d98d0a2f1239f58e10c2b18a9d22e43343566a

Chained

0x35e926359fd19031c6b5e08fb3b44f2524386a57c8fdd353336c185603f53d43

Published

On Arc Testnet, block 70601990: 0xa5f9dadba13cde129126b950e64b815e6833cb8ff53b75026c9dbe769c3768c7