Evidence row 56686

What was observed

{
  "endpoints": [
    [
      "mcp",
      "https://lessonspace.usefulapi.io/mcp"
    ],
    [
      "web",
      "https://usefulapi.io/lessonspace/"
    ]
  ],
  "name": "Lessonspace MCP by usefulapi",
  "owner_address": null,
  "raw": {
    "_meta": {
      "io.modelcontextprotocol.registry/official": {
        "isLatest": true,
        "publishedAt": "2026-10-25T22:35:14.270229Z",
        "status": "active",
        "statusChangedAt": "2026-10-25T22:35:14.270229Z",
        "updatedAt": "2026-10-25T22:35:14.270229Z"
      }
    },
    "server": {
      "$schema": "https://static.modelcontextprotocol.io/schemas/2025-12-11/server.schema.json",
      "description": "Read Lessonspace sessions, recordings, transcripts, spaces and users; launch spaces, edit sessions.",
      "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/lessonspace",
      "remotes": [
        {
          "type": "streamable-http",
          "url": "https://lessonspace.usefulapi.io/mcp"
        }
      ],
      "repository": {
        "source": "github",
        "subfolder": "servers/lessonspace",
        "url": "https://github.com/m190/usefulapi-mcp"
      },
      "title": "Lessonspace MCP by usefulapi",
      "version": "1.11.0",
      "websiteUrl": "https://usefulapi.io/lessonspace/"
    }
  },
  "source": "mcp_registry",
  "summary": "Read Lessonspace sessions, recordings, transcripts, spaces and users; launch spaces, edit sessions."
}

What the leaf hashes

{"body":"1e33c283fe0f0244c8b53e0a3e9a97e02f44d07d2197efc2c2b2fd012b321662","id":56686,"kind":"listing","method":"baseline/1","observed_us":1793025440283843,"prev":null,"subject":"mcp_registry:io.usefulapi/lessonspace","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. 0x0385c7a4f409add25bded721b3a2cab0d94a75f6cd475eea0078e34899aa2ac7
2. 0x599ab33d427f633eca6474f1eb541df5fbba69269eabcfbb7577c9e67ca5ef32
3. 0x05cf871ba7c061045e743500a2b679c1355e20ce4495f50593fd3c2c6ff19b59
4. 0xd3ce32b7dd76d6165dea40569c83564c3ffa571f7d24b7d664b6edde644ea5e1
5. 0x79c0ee55b36bb0c08f7c5e409adcfe2eb9a473843fcc0b9e93921220c7f9b788
6. 0x8fdc7e4e7b8ae71aff66209a9cf4850da9b507f62e33b2089c797f4c34cfb1e5
7. 0x693ea9d4ff8eec9c1bcf5f6c19d8a115a6d08b7ca9903909a320739db12e1baf
8. 0x7034ff5fb0aa1fddca25874c1e87c25e0149a8d38feea09cdd01c890ecad1dc3
9. 0x9369d7f705c2d6b0561162386f50f3ea46e36c4caebc9cfbecf87ecd6909ace5
10. 0x1f18e0b2e922935cd8cf72485fb2b121046aa17f2946bfa3d06b3e3837120a98
11. 0x0dadbaadc61f6ee6be4586a11afb533e54da3f5fef5c8ec2ecba1bfa573ce6d3
12. 0x23033d81d9f4be06225e4276d276e0e8e02abc173d156a1b9a8fd5e4803ad199
13. 0x610fdf3e989af0a6b4a400a3a8aab9156d757f8c96efe4e9d0594dfd04de1cc0
14. 0xd1d3499072edb10edc68f84bcae2365d2ab534df689250cab18c751b6f13b6ff
15. 0x7ddc2fead128357f881b63e6c7c26d7fbbb84fca6c7c8e0bbfe386de86ca8d39
16. 0xc6a4d7899a0f442958e26505011190b7cff2483611c1b94eba9043e0ba9ac36e
17. 0x8c756542e482157df0c36464d75c937b845e4423dbbcfad08f0cf8d5a16b9a13
18. 0x20704208aa6923d6b2450ef74ede87a6e0265d46447926038fe9506e9e154b2d
19. 0x9b9ce5b74b9bab5121612ef6b64920a8d453cbf311096a423eef9702747e868a

Day root

0xf43e8dcc3d451a4788b26be904c55e8c4c0fa75c9666796c51db38d37e2c0df8

Chained

0x702d5ac508f08b0d1accf36af25822d8e5660367494edd17a642fb61e158a57a

Published

On Arc Testnet, block 69251483: 0x495162f8936e19f0039918feebe6c307f327cd6bf8c37219620b1970041fa9ae