Evidence row 3945654

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": "2026-11-07T09:18:27.665167Z",
        "status": "active",
        "statusChangedAt": "2026-11-07T09:18:27.665167Z",
        "updatedAt": "2026-11-07T09:18:27.665167Z"
      }
    },
    "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": "1.3.3",
      "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":"d05923424c0593fc7283a004179ee3767746ff76d0bc199a3d92294eb3bcf0dd","id":3945654,"kind":"listing","method":"sync.mcp_registry/1","observed_us":1794043459674271,"prev":3775672,"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 2026-11-07 (195826 rows).

1. 0xed05730ac87ee03f5d61e7acd22d207acb5688953f32b444281b9aa3092cbda8
2. 0x0a66c5ef5a17a5334353e7e10e9598bc046aec54ef6dcd7ad0d387435fc85518
3. 0xf8e7c48818d27d6545f977e50418a47f8ce2ecbc9ffb3ea003317964d14f6123
4. 0x5aa06c23bd100de0ad5d002b7ec1218faee82f176be4ecb646e7bfd6c46c8440
5. 0x4b27eaf10b6687b336f80b2116f2fecbab05a2e70dd1d4b09182e85006dcdbfb
6. 0xd3ff486dfdb4efc98d50416b31ac207e980569f0fa08c5c9d37bac657bb0c6c9
7. 0x30324405ee3b5d56b9dca84f9488af4a9e32607a7feb576f0ea70d81ea6cf12a
8. 0x2d9f24c36434e5ad7d942cc54f75f25b08b5828e097d23b6684d4a9856a71b73
9. 0x69fbd75d85f1943b6a7b89d00fb578bee7260e6b82d3a4bd47342d648d91f1fb
10. 0x7296d1b00f408f6b57eca597df98112b6369151c669fedd9ff8780ccca69565e
11. 0x9f3b856e9a6846a75c13cfd17b703da7545065eb1189bfef36f8b76545150b44
12. 0x87acce77df29e8c81b4d7f9fdadb9b4738a681812af886fe197d489ce8b4d569
13. 0xa246de0ecf2c7ea6bb3364bd51f238e41f260c2a06f814448edd91148e5d0d71
14. 0xf43413f83ed03b7c7cf9da72bbeca9e32610d671fd1e4e2b0c0cf6b3d8b94516
15. 0xb6dc07358d0932b83c713d4c82df6764849db6e58ee1c7cbc06d03f381a6b36b
16. 0xbb3be27e5da5ccad91ce4674c6eac53275c0832f3885b89533d2be65d38f2fc6
17. 0x9ea7c2ecc6985da4b761b0f9096b7858b3ac8e3e47717c3840537fb2ff31c6df

Day root

0x17da9e85e1b138541355d33543ff34e3503cd3a49d37728fb53643e2a0416a2d

Chained

0xed34bd4af17282643de8cb9591c84d0aa1b39e1e9ae9864941e543f5a15718cb

Published

On Arc Testnet, block 71280839: 0xc3f6784179e0ca32236ba89472473e882a81d03fcc5ce27ca58ded2e01e112aa