Evidence row 59421

What was observed

{
  "endpoints": [
    [
      "mcp",
      "https://mathboard.datapad.tools/api/mcp"
    ],
    [
      "web",
      "https://mathboard.datapad.tools/"
    ]
  ],
  "name": "Math Board",
  "owner_address": null,
  "raw": {
    "_meta": {
      "io.modelcontextprotocol.registry/official": {
        "isLatest": true,
        "publishedAt": "2026-10-19T09:49:00.289755Z",
        "status": "active",
        "statusChangedAt": "2026-10-19T09:49:00.289755Z",
        "updatedAt": "2026-10-19T09:49:00.289755Z"
      }
    },
    "server": {
      "$schema": "https://static.modelcontextprotocol.io/schemas/2025-12-11/server.schema.json",
      "description": "Maths lessons on an online whiteboard: solutions, worksheets, graphs and geometry, opened by a link",
      "icons": [
        {
          "mimeType": "image/svg+xml",
          "sizes": [
            "any"
          ],
          "src": "https://mathboard.datapad.tools/icon.svg"
        }
      ],
      "name": "tools.datapad/math-board",
      "remotes": [
        {
          "type": "streamable-http",
          "url": "https://mathboard.datapad.tools/api/mcp"
        }
      ],
      "title": "Math Board",
      "version": "1.0.0",
      "websiteUrl": "https://mathboard.datapad.tools"
    }
  },
  "source": "mcp_registry",
  "summary": "Maths lessons on an online whiteboard: solutions, worksheets, graphs and geometry, opened by a link"
}

What the leaf hashes

{"body":"a30af947012fe9372b21525a77a3e53f8939fb5ae8055620c789cd09b156f758","id":59421,"kind":"listing","method":"baseline/1","observed_us":1793025446762467,"prev":null,"subject":"mcp_registry:tools.datapad/math-board","subject_kind":"source_record"}

Proof

Fold these into the leaf in order, hashing each sorted pair with keccak256, to reach the root of 2026-10-26 (296695 rows).

1. 0xfaf03cd3eda31c1c5fecf0eca3c8ce120d981ea1dfe1c0d84efca0540ae6328d
2. 0x44bd12022bc5f5b4a387f805a2c7baa4aeaddcf20a7e5424739dd915600ab561
3. 0x97746613c56ee0e9ce5f81dd9611f7a8aba02db906f391add8e0f3e9de523f9a
4. 0xa6b8d86c7598752560f35347dbb007109716d2c3812837c8c1ced49da8fadb79
5. 0xc6c4e94a19b4aae1c4bd2cf94b3d22b0e8694d84294da65da1af66973089dff1
6. 0x345a3109eaf487b79494df7e293c33ba73b61308071cab36df0eaef150a72c9b
7. 0x4107b7b33d2dc7be7e2b6858c96dfe452dcb76b043667f65da1397268f942568
8. 0x320165ed74d25543d26b2e14cbc3d677af37732fa5bc44d9aabacfad4b4f47be
9. 0xbfe92308f156ea6389ec1185fb208a6cf9ca58f58a39e7ccf88e8c8b244dc082
10. 0xd76f45bbfd4476d2270c8ee2682ce22ef4f12d6f8a748331c7b8b81e476c49cb
11. 0xc1f00d9dcd67fe1d14473197e5f14f3efa26c1e1569cc2a3172842f28c850633
12. 0x08d20884523152a869ac5da32efc7de7b28316f6e9c2a28242f5ea9da742852f
13. 0x694eb701ea36a0e3dcde192253ab85a618738bdc1e3a6e582e6f8bf9647f7a6a
14. 0x44945ea9ad8b24e723ad5a8fd6d014024a49531783f74ff9229c2ab6930e84c8
15. 0x68d296b1e00b4899fb83c3fba36fffaefa311eac2903067dbebfe776a12b4a9a
16. 0x5fb5dda563336cd1bc1b9f44c52b76237ae72ed2145cb9290f39f304ca7dd678
17. 0x74a0a08e4e7ab9aa5bfbead33dec7e1c7e8e364cff69a63720d764bbe987aadc

Day root

0xf43e8dcc3d451a4788b26be904c55e8c4c0fa75c9666796c51db38d37e2c0df8

Chained

0x702d5ac508f08b0d1accf36af25822d8e5660367494edd17a642fb61e158a57a

Published

On Arc Testnet, block 69251483: 0x495162f8936e19f0039918feebe6c307f327cd6bf8c37219620b1970041fa9ae