Evidence row 3987260

What was observed

{
  "endpoints": [
    [
      "web",
      "https://usefulapi.io/webinar-net/"
    ],
    [
      "mcp",
      "https://webinar-net.usefulapi.io/mcp"
    ]
  ],
  "name": "webinar.net MCP by usefulapi",
  "owner_address": null,
  "raw": {
    "_meta": {
      "io.modelcontextprotocol.registry/official": {
        "isLatest": true,
        "publishedAt": "2026-11-07T21:56:36.98384Z",
        "status": "active",
        "statusChangedAt": "2026-11-07T21:56:36.98384Z",
        "updatedAt": "2026-11-07T21:56:36.98384Z"
      }
    },
    "server": {
      "$schema": "https://static.modelcontextprotocol.io/schemas/2025-12-11/server.schema.json",
      "description": "Read webinars, schedules, registrants and attendees; register and update people in webinar.net.",
      "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/webinar-net",
      "remotes": [
        {
          "type": "streamable-http",
          "url": "https://webinar-net.usefulapi.io/mcp"
        }
      ],
      "repository": {
        "source": "github",
        "subfolder": "servers/webinar-net",
        "url": "https://github.com/m190/usefulapi-mcp"
      },
      "title": "webinar.net MCP by usefulapi",
      "version": "1.3.5",
      "websiteUrl": "https://usefulapi.io/webinar-net/"
    }
  },
  "source": "mcp_registry",
  "summary": "Read webinars, schedules, registrants and attendees; register and update people in webinar.net."
}

What the leaf hashes

{"body":"bb869200eaa18c0db3073023781cad9ba976c4b3a867e21aaf3f83f29a2f9492","id":3987260,"kind":"listing","method":"sync.mcp_registry/1","observed_us":1794090328955316,"prev":3958476,"subject":"mcp_registry:io.usefulapi/webinar-net","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. 0x6b95d0dffdfbeef3a7b590268eab812e82c6f3c8ae63710c53fa1795e6054a89
2. 0xb5af7f3fb853a355ff56af56ecd0e57e9c8cee6eba46325f64feeed8fb41c3c8
3. 0x47a66f4c64715c8a441497a7c654a0eb266e7300699cfa6673b5d9348ddda76f
4. 0x38f795db216681a8a811911e87c15124a1e1389176f0c0ff2f9d5638220278ad
5. 0x5517d23388c2d5ebd7b44fa49b234e3c55774e9fe487b4933f789418b3525956
6. 0x28ea3a8aa2283db0a8a8442ff24eb0427c2bac24637c086f3ce43c460cf83832
7. 0x71421292f083883c80eca93f1ccb65c68436b08c8b77fdb9c2fc7509c9b77f49
8. 0xd03484bff103a19ccaf3a5764001ba679c6400e9b33089275c1ee2880ce64a9d
9. 0xf3f584aad27fc936ed3f322afd5c509ced4c8555dd1d369ebfc46cb9029d9528
10. 0xcebacc7537cd9592e7e7bc32b5169f60cbe5828e0b751b0e256efbb157972d5b
11. 0xe760c51ad5d84253d68c1196dfd4213d9b6a7ab9d23974b3b7a37736139fa30f
12. 0xfaa6d3b2121bd049ccbf27f88a83d49d00cd01b9d118f9c36b6a0c45779d5b5b
13. 0xe5801f2d98f2783a9d774362088619c8104163c840e21fbf269ac5c455e9df78
14. 0xe10968763bf5f376ed7bef52309abc0adc0394947582477a2899a3f332842d95
15. 0xdda41bf8f8b807884588170276b0203d24918e4a5c47ba7f4d5d0217f85e0cf7
16. 0x9108c80d13a11b7549b554924410a7c5d215a2cd03aee9659ca627cb099f1a2e
17. 0x3b69f6d98c91b21287021db092e52491474f0d08438393ac130d6a3c273bcd4a
18. 0xff23fa8a9de3f957315ef0dfe7e8d8f6b1a51dae05fef7615c59794e019ff05c

Day root

0x17da9e85e1b138541355d33543ff34e3503cd3a49d37728fb53643e2a0416a2d

Chained

0xed34bd4af17282643de8cb9591c84d0aa1b39e1e9ae9864941e543f5a15718cb

Published

On Arc Testnet, block 71280839: 0xc3f6784179e0ca32236ba89472473e882a81d03fcc5ce27ca58ded2e01e112aa