Evidence row 2130682

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": "2026-11-02T11:23:52.998393Z",
        "status": "active",
        "statusChangedAt": "2026-11-02T11:23:52.998393Z",
        "updatedAt": "2026-11-02T11:23:52.998393Z"
      }
    },
    "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": "1.1.0",
      "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":"95ffb4a45b6a9a00fc6e19b3371a3a1344e0afc8ea2f4d2e4e39c5e8a62a75ed","id":2130682,"kind":"listing","method":"sync.mcp_registry/1","observed_us":1793621912832166,"prev":1828847,"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 2026-11-02 (444186 rows).

1. 0x38e6663fdda8bb0809ec1edbe4812a39333541bc14c2915b00b8e472117943f2
2. 0xe691a7a769bfda12847f604719776bde5674bd3b9e2c080cd2b80d36a5911e83
3. 0x58d1d0fee40019ae29a53e461e6059eb24bd0121974e2d5f36a54689bbebd7f3
4. 0x25bbaeb22299540d6482e4c426d04ddfe979cb01aae938a5e2502208031666c9
5. 0x4747b4ef1d0efb88e46eda462b1f860d07ee21998369224e274605c9fe4bc1d6
6. 0x1c646b0399faddec8d5708d99cd126deeb84d0b96c61ad7626dc04f585a808de
7. 0x849023b5d20ed904f62d49593df1af00b38973fe323ddc356f24232f2b51aebc
8. 0x2298d1b3f6eb9463c21bdd5316588942f0e0b1d0361edcde8c2d150d28efcf74
9. 0x946b656c9781d7fabfca751c5340dc4f1bf2f60e8c60650c6daf5cfd3a1deee2
10. 0x20998bce7cd251700f64b0fdfe4f9d6896db67284026df1a721416b1eaab4e2b
11. 0xb107f6cc667be020e4ece08fb1929e98c19e28e28188483bcafaf893cf12f8fc
12. 0x0fd72956710df968a8f58dacdfceb8698025772998960cf002c04225c3ba96b2
13. 0xaee6ec4fc06e2edf4e7718ad8b87a20e5863c6d259df1046ee61e5a22ea253b8
14. 0x637ba5f029eadccf80c2665ace422cf50802b8ffd21717811c25c8f068f65dc8
15. 0x8448bd1fe3c2d48b62a118ace4a5cb82fee53586dd43d776c2526ad844398919
16. 0x8760c227928c5295506cd8606e763f86cf8cd2a549820fab4dc86d29ca0d816d
17. 0xa20b9be86af7d690e040c9060a373b2fc5498edf3432f43c26f74fa2febc1e9a
18. 0x050f2978b537f7afb21ee1551577cdf146d1c56f4df12d24315ae5e69366b0a4
19. 0x365b161a4b68d750dcc4b3ecce1154a2163c87b08762079428e68f0ebb6a754e

Day root

0x78fecaabbe319e56f5c4b80fc02e2052e198ad24781da8832a475ff65f2002d1

Chained

0xdc35957db5d1371ca382b9152878ffece28ec7c5cb4f98fd71ddb367f8b999b2

Published

On Arc Testnet, block 70432815: 0x56b814612eb2e3e544153df3e91e1f7199106d1e430c7d8c6b653feeb9ebe9af