Evidence row 3765398

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": "2026-11-06T19:36:40.175241Z",
        "status": "active",
        "statusChangedAt": "2026-11-06T19:36:40.175241Z",
        "updatedAt": "2026-11-06T19:36:40.175241Z"
      }
    },
    "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": "1.3.1",
      "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":"b0ab849cd703b65e4f990ebb5aeeaed5839a6a6ea4933d83dbcb28687cdd96ab","id":3765398,"kind":"listing","method":"sync.mcp_registry/1","observed_us":1793996607590159,"prev":3723989,"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 2026-11-06 (303443 rows).

1. 0x6ae48a34569b5c91eb1a7f88ce63a949c1141eefc3be7c25ab75403346785784
2. 0x646a747439c6fb087e8bb1bf54da3eae7343bf52ab6b869c051dd903e962a5c3
3. 0x6b363226882fa205a6f95a023cc45e7ab96c7f6b234262b55c58ae3ef2942a59
4. 0xbccf85773d62ca258dc385acb3a1ac76a7f76413d8e4b29f2793ec38fd88ce81
5. 0x6e7a8d2f0d184fcd42aec82f09f3d18d74dce7c108a450ebcef3ecb67a7ebb42
6. 0xe180b41d412eecf40c15661000a2a8ef7834a3db1444d8451dd17cca6f5f2a9a
7. 0xe24bd4704e72f8beff13439da5e737a1ea93d440d2ebf04cc11dfe39100145f3
8. 0x72f90cba3596f4f5707fc4d97d92228a28ee8a5c2e74bf698488cc5bf31c694e
9. 0xcf3e090208048b41bfb8ceb459039276198bf798a44a30cf39c85658f697e74b
10. 0xa21f97e4c7e65013f80aceefec07107f4cece7e93f739ab3683452ecbe74768e
11. 0x936278d3549f6a8844821bb662418658a5b93b39964c0b4f2bf8ac7118cb651c
12. 0xd08887e0e259c994aafffc1a9aaaa7b1eedd819896b15147f02e48377f5697a5
13. 0xa59d707bff526a1af46d148195333570abcef45decc6fb736843cb6b63c23d94
14. 0xe02e716313f6c894f9aba6c60b7f4604a748d028c5f11750f11cfb94f52a57bc
15. 0xf2bc30db87e2aa2afe08f16c1943f967ac74b2e32364ad0b7cb45d2ffee7e447
16. 0x7a2e5c8104eb5015bfa08d52a9278aa0b4da48bd2fb98690cc2d1c225b5dc691
17. 0x4a618d78b1cebba8beec4ef22aaac9187dcdfb39064e0be537ca2600abb90740
18. 0x119743aadcddb571b28b442b62196d4a0afc4e1c9979c2d477d34fcc9413deaf
19. 0xc0d08d48601d1be90bcfc025e66bcaa0030120d688dd9c919b36c2c4446f4948

Day root

0xb30ccefe7182c6f767e1fcbfb5f64ffd649da831f665f65c5ff39cd40512284f

Chained

0xc383f7ef68d2914082484765aa09e42c12c59a74a096ae64127c562618c506d3

Published

On Arc Testnet, block 71111178: 0xfba13cb7ee4ada7f2fee3702a786a2201596be2ffea37dfc281ab4c8e9942fe1