Evidence row 3396454

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": "2026-11-05T11:43:01.259251Z",
        "status": "active",
        "statusChangedAt": "2026-11-05T11:43:01.259251Z",
        "updatedAt": "2026-11-05T11:43:01.259251Z"
      }
    },
    "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": "1.2.2",
      "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":"a23006aef6df4ddd382b9e04d6f348d30d997f4d0b7e6e8400133f7fa7cdc600","id":3396454,"kind":"listing","method":"sync.mcp_registry/1","observed_us":1793881291708715,"prev":2726887,"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. 0x6d82525db5efb090d5192a58345885ba9fe9f37ec72914489b18862eec397d1e
2. 0x77b69984c10cd8d9ac7faf7360c079752d38cba59de17f13aaf5efbd45276892
3. 0xd6daf6641061bd6e4a1fd1634e91ba3b1dbd6327efe4fdf1be0028aaec2bce75
4. 0xc35143b4e39378a8962250e4c35d8a1ca492bae835b84f2aafc2c946ac244771
5. 0xd25742a72951963adbb0f0ad90a2810a5b017e0de058c9e4811e4261a733079b
6. 0x3931f6ed71430b9bcd3c91eb6708bf378e03b59bac658f8d3f31a704788471b7
7. 0x3044d7eb365db67154f6a7f5881bd5a9fe8b469e797c793ee1d0b3379a96e3a4
8. 0x6f3dcb66771acb740390732faf6451017045b087fe1888b5fc63977f212d1b44
9. 0x4fcc0823c9c41406684dee039bc0cff51d4346a4778c99a57fdd0b5449e4f52e
10. 0xbe1464ab5997a5658b445c3a853ea664563af87ed684f81dbdec0caba66fa48a
11. 0x5df0d64bb31937fe8714f3cc4331ec484dabe1f3603a52b13ef3a3880ee22558
12. 0x525cf327990a03798bb0f97b7019d6b7ef7246c4da5226f890e60759c8aad9b6
13. 0x801b2e1f475589a5f3b05760d51c9599dffd6cf66b8710e6e0d944dfe883a8b2
14. 0x9f2be961a8419237b98b1b980a6b1775efdf14bb1bcfe62d18edeff510e87dcc
15. 0xb5ea076f0a9490f58daaa0cbe915aa5dfdfe460bfc500eaea09b59c1d753d699
16. 0x3b5d12e41df15017099876c1435af6ce1c7a30cfddd96040c3878ac62de1dbc3
17. 0x7e5b4628b4269525ce0744fb873651b9d7be5748de44b7e6b858af09c7e30bd8
18. 0xfb4e1f4d701ae273fb0cd57757f659e327608e5561a752b2099b436618493c84
19. 0xf72fe7c4860b9addb17aac4a00b8afc2f8085836173f10f31697c3d192df119b

Day root

0x9f0215efb0252701dc86d5600ce95f276cccc716759bf112525ae863f698d128

Chained

0xc54ddff800630c6cd9656f99e7d6a61adce99bf1cea37121600598b0a9a720d2

Published

On Arc Testnet, block 70942081: 0x88f612ad94ca63af4e4e9faab9f34b665b41f03828afac1571ad013cc62bba94