Evidence row 443398

What was observed

{
  "endpoints": [
    [
      "web",
      "https://usefulapi.io/youcanbookme/"
    ],
    [
      "mcp",
      "https://youcanbookme.usefulapi.io/mcp"
    ]
  ],
  "name": "YouCanBook.me MCP by usefulapi",
  "owner_address": null,
  "raw": {
    "_meta": {
      "io.modelcontextprotocol.registry/official": {
        "isLatest": true,
        "publishedAt": "2026-10-27T08:34:54.236278Z",
        "status": "active",
        "statusChangedAt": "2026-10-27T08:34:54.236278Z",
        "updatedAt": "2026-10-27T08:34:54.236278Z"
      }
    },
    "server": {
      "$schema": "https://static.modelcontextprotocol.io/schemas/2025-12-11/server.schema.json",
      "description": "Manage YouCanBook.me bookings, booking pages, appointment types, team members and locations.",
      "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/youcanbookme",
      "remotes": [
        {
          "type": "streamable-http",
          "url": "https://youcanbookme.usefulapi.io/mcp"
        }
      ],
      "repository": {
        "source": "github",
        "subfolder": "servers/youcanbookme",
        "url": "https://github.com/m190/usefulapi-mcp"
      },
      "title": "YouCanBook.me MCP by usefulapi",
      "version": "1.26.0",
      "websiteUrl": "https://usefulapi.io/youcanbookme/"
    }
  },
  "source": "mcp_registry",
  "summary": "Manage YouCanBook.me bookings, booking pages, appointment types, team members and locations."
}

What the leaf hashes

{"body":"a64b38dd101e635fb04972ed4bfad8c3e4752e43c4ff7bc33996cc337432289c","id":443398,"kind":"listing","method":"sync.mcp_registry/1","observed_us":1793093259654767,"prev":56904,"subject":"mcp_registry:io.usefulapi/youcanbookme","subject_kind":"source_record"}

Proof

Fold these into the leaf in order, hashing each sorted pair with keccak256, to reach the root of 2026-10-27 (273461 rows).

1. 0xd484961330c24f76b69f811a1a06d1bf8fc9e7ac0649feba7df118bf33fdc7da
2. 0x2a42e2ce7fba248edddf3bef33c016dc334f2dbbe772865129bcef259de2b22e
3. 0x0e406b4df98019482e243bb24f356c1d1b0d4ebdd847462a2ede76e08e8c0461
4. 0xbc504b4108d67431e4bbbdbdefe9b93ac940ea42e04ce96191b9c759e6d097a5
5. 0x1050b34be50b2a4e53821fd64f544c8ab72203b91fc3a0a41ab6fb1c941b4c73
6. 0xcd9e29e92a5463c70e9013393f2735765a6ff83b5a89d531e7bd09fd0903c1dc
7. 0x1d7fe0e06901402112c815d04d5878e04c92629fdc3b4d231b2c0eb63f0253cc
8. 0x105145bc765d8d5b153796267a8675937da6c26293da2ccc0baf9c6f23f4b15b
9. 0xfb80ba5b5b0e28102e360504f367b0345a1b1c594eeba3aafe0aa1f076717713
10. 0xe241e94eb1670fcd91f1d0cb61e14e297570ff7e8861327f9690800b59239d6d
11. 0xb260f65f574273b29152a0381cb63c4d5e250d7b6498b9b4f5aaf104e094e9d8
12. 0xba42125112c82614fda070baa3201b37bda47b7485d074641cdd174984f8ddaf
13. 0x3b3e4fecead12aaf883ab4f21b6e21efddd0a8d055ced058cb62bcdca8a6c9d6
14. 0x8f676edfb4faaa290229d8f4f69ab721fc627424463d62f5146b3d1ca7f2f0c6
15. 0x969cd44e5a4e8dc3110540398fbf689659eb51df735c1cda5d8f021ef9ff5683
16. 0xa94627de1af0e823832e05a9069b304ecccb8c0cdb8f9cfc4f2039bfb9799dc5
17. 0xdf1105afdc109de3c09a98fc8a3864159ad964e6f49b635c105a27a1e1f14310
18. 0x2bf8151e5f157dd183b9de6fa00469551932a7a6e3f33a694895000ac9061197
19. 0x9fc354c0ea3efc3f1b6548bb77ea902a50f2c9647647ea61592efce2bd795699

Day root

0xdd77e5e99da32c3f154180d63e3c3e6fe11e896a2c6896412ef6b5c4bcf7e795

Chained

0x23bb4dfd09f55c15ac3962f53578e02c6114d5bfd9bb451cf8794fb6e2817ef4

Published

On Arc Testnet, block 69414147: 0xb2ebd83aafeb765a0ce66e76aefb133ed06606c98038fd56191e2bcd1dcb77b4