Evidence row 1828847

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": "2026-11-01T20:36:13.123903Z",
        "status": "active",
        "statusChangedAt": "2026-11-01T20:36:13.123903Z",
        "updatedAt": "2026-11-01T20:36:13.123903Z"
      }
    },
    "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": "1.0.0",
      "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":"98d98c673eead32caeeb335f7de3c7cce4a2faa97aece552981c20a260750360","id":1828847,"kind":"listing","method":"sync.mcp_registry/1","observed_us":1793567869395340,"prev":null,"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 2026-11-01 (302406 rows).

1. 0x4bd741ed2c5af5ce5f885156c398d7eabdba34af3bee09df4bd2cec205004315
2. 0x68a5c83a44b882a3d8183cb9c07178c6ada62453376f33ad161b74ca905a06f0
3. 0x4d110c07769b0619be437c603392d631e32acc636c7610fb2578c247213315b2
4. 0x9581b901b20b7ee4f1722a9bdb01aa31a42b796a5bb47222d936a8ec03841644
5. 0xee403f2ed9f945a9b62c94074d39c415b346bc5bc9276521f1f8386f50f032fe
6. 0x70f7191bb1127c7e1f4faf768fd4a14a9b7485258a6bf2de1f0092bbbcd154d5
7. 0x55aa89fec5f4e57c1d8ba2e7ab08068e2bfc8d996565fc92bcd31561831e5d35
8. 0x8c8cb7b73abce24aefd566c53bc7bbe8309d8a7cafa48c2d3e5bf0994dd8fe3e
9. 0xb7298346e441c89bfed8d4d89620fd39737692243e7845f54bc10cd020cf1870
10. 0xbc57ba670ef9b9bc34a4a538fa7d1bdd2638950dcb00ba1e9184f2901b755bd6
11. 0x66a9bc181d9e56c53d489ee2cb7942cdb5ded4b6814ed9127333e4a5d02acfe7
12. 0x216487fdb5812387ef5bd703d60ea8f043773d5db562b3ff2e11dba79509bf1b
13. 0x8aa214258cf763ac22ad2503df59c82b987a34bdb8f8ffe282ed4454b90f50bb
14. 0x6c979ceed347ae2f49a398afce74e46416fbc8bf2d649ac7be77ccbc81b2ba03
15. 0x0e3f78943343406ddd3828dd4ca4b5a188e80ffe3ac87d64d979448ee11c1cc5
16. 0x00ec7149eb024693951d82cb635dfa183f4f34dae011e77ba0420a38a378e0aa
17. 0x97f6f39e601b6ef0e47b730aa0488b718c0d7882ad840342bbd7d3a705a1b3a2
18. 0x1973893697931b7512ae5dc1a3c92ef92f633ae3574dce9029a35b5e94d2d364
19. 0x3315fd2757fdd435852cc277377234a3f3909a6d2a089d0e36f6d59aacfda910

Day root

0x7fa2cba1cf3d6b35630896f5fe1a650adb307ea2c376e80a5f2d9276b7cb5ab3

Chained

0x577ff89ba012beeff3197bcff7fa86752074bdf54205a24359cc437be2a952a4

Published

On Arc Testnet, block 70262758: 0x435bc1b9331471d72e1998f2e420983b5189d4da65ffbd6f27ef40daf5e1ea90