Evidence row 3414705

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": "2026-11-05T13:39:11.077869Z",
        "status": "active",
        "statusChangedAt": "2026-11-05T13:39:11.077869Z",
        "updatedAt": "2026-11-05T13:39:11.077869Z"
      }
    },
    "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": "1.2.3",
      "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":"a486c1d2e6eebcfc1dce604137e4e370002711b4d9e458ef93d2f90e1877e9e2","id":3414705,"kind":"listing","method":"sync.mcp_registry/1","observed_us":1793888500597069,"prev":3396454,"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 2026-11-05 (322504 rows).

1. 0x204ae054ab3bcf59d5e46a79a6e8a55042826146e56e0d08a451d3f1605ecfd6
2. 0x1ca3347513a1a5eaa863a182e513b3133e483d2229d011c52e4968fa3ca67d8a
3. 0xb842d62afc2c1f65ecc4d14b072ae7e08c78fdaa744aeee41109e299a6521794
4. 0x556fdfb5d62bf6202450173bc736817477ab63a12743216eebf2c494f0624c91
5. 0xdec8c81a4397271a8767a562ceaaf1fcfcfb434e5e61069759abcba1e2244290
6. 0x0aaac70eb034b2b07465583dfa7da51d82c5b960b62f83423ccb57e39477a5cd
7. 0x91adc42f12aa4f59f161985e6a88e230c53f1adb6a651b197176e0ab2ff74c30
8. 0xe02e571fa4df365a2d64bf98e6c76c958814cce1761005875803e75a06b2b2b6
9. 0x7684d3248f79e04931961083b5b3cd6e0bb1d082a4a13380f72ebce34538e049
10. 0xce6450c9373f2586b5334e4c4f2fb985787c910790eb565775d8ad03530a1091
11. 0x7a39757a44370494f35173fbddde2d08984cbb06c9dabae2c152c9cb9d67867f
12. 0x1505a032068656c40341f20408269515459fe1bb38bcee00e0bc96236f75936a
13. 0xbd3acddf75475814d59aeac38580c039a4fa767c6e839fcd1e04f6f1a9d6b6b0
14. 0xdd6fa898dc2d1128c5a90a4bab70abf6cb81c974df099096ad3573f2fd245ace
15. 0x7c0ecb381cdd978337dc5ff40a1a1db43aaef42628e17d5c85ef5bf173d90fbe
16. 0x0009f1567d5c3f52d167d3c95d53c71fb66114fc26e83679b452d6db2f1d0b95
17. 0x0cdf39687556f127f9de2f03ec7df8e10e613bf9487760cbe3eaaaa02d8d48b4
18. 0xa9caf228b42660818160afb416ff04cb014f57c4d8ee75ea3452fb76c3d8c645
19. 0xf72fe7c4860b9addb17aac4a00b8afc2f8085836173f10f31697c3d192df119b

Day root

0x9f0215efb0252701dc86d5600ce95f276cccc716759bf112525ae863f698d128

Chained

0xc54ddff800630c6cd9656f99e7d6a61adce99bf1cea37121600598b0a9a720d2

Published

On Arc Testnet, block 70942081: 0x88f612ad94ca63af4e4e9faab9f34b665b41f03828afac1571ad013cc62bba94