Evidence row 795870

What was observed

{
  "endpoints": [
    [
      "mcp",
      "https://practice-better.usefulapi.io/mcp"
    ],
    [
      "web",
      "https://usefulapi.io/practice-better/"
    ]
  ],
  "name": "Practice Better MCP by usefulapi",
  "owner_address": null,
  "raw": {
    "_meta": {
      "io.modelcontextprotocol.registry/official": {
        "isLatest": true,
        "publishedAt": "2026-10-28T18:46:10.095466Z",
        "status": "active",
        "statusChangedAt": "2026-10-28T18:46:10.095466Z",
        "updatedAt": "2026-10-28T18:46:10.095466Z"
      }
    },
    "server": {
      "$schema": "https://static.modelcontextprotocol.io/schemas/2025-12-11/server.schema.json",
      "description": "Read Practice Better clients, sessions, availability, services, packages, invoices and forms.",
      "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/practice-better",
      "remotes": [
        {
          "type": "streamable-http",
          "url": "https://practice-better.usefulapi.io/mcp"
        }
      ],
      "repository": {
        "source": "github",
        "subfolder": "servers/practice-better",
        "url": "https://github.com/m190/usefulapi-mcp"
      },
      "title": "Practice Better MCP by usefulapi",
      "version": "1.13.0",
      "websiteUrl": "https://usefulapi.io/practice-better/"
    }
  },
  "source": "mcp_registry",
  "summary": "Read Practice Better clients, sessions, availability, services, packages, invoices and forms."
}

What the leaf hashes

{"body":"548cdf95057d6fde9d064985a8a56d743869b45972c6a8cb3427d7135a7c01ec","id":795870,"kind":"listing","method":"sync.mcp_registry/1","observed_us":1793214747939012,"prev":443262,"subject":"mcp_registry:io.usefulapi/practice-better","subject_kind":"source_record"}

Proof

Fold these into the leaf in order, hashing each sorted pair with keccak256, to reach the root of 2026-10-28 (231336 rows).

1. 0x6fc4898f23de47723776215d64d2abe78e345ba9d15da279170ff5efb5571a49
2. 0xd6005d39b398a874f8fdc5d9fd2575291392e409fe590af66baf794451b4e081
3. 0x0d2bae5b7afab5290feeee952057a06d4cc5ad221cf4564844d9b8353eee25d0
4. 0x0aa74bc22e6e540075edf46fd2b9099f0d175dbf68c08d0a06b5b7bbbd2f11d7
5. 0xc1c3ee99eb773413f90907f22c23a4cc4c78664ef4e5e1611def6e703fdbbeae
6. 0x9adad3d6b5b1143c15c5170f911d5be6a61d62c4def040d2e6f4c3430e33095e
7. 0x30655b086ae0041b23a68201fcf0e93844f5ecd63471701b0bb006f9537fd62d
8. 0x43b9b8597bf98ffd7d3c6ef31190f24bbbfb0ae0e83b77fc4aca17854e9f7929
9. 0x0843a6741599966f236655b0c3e10d0cef165e8fcb622e8b6992d5385449b8d2
10. 0x377c6b174436b8fcce008e84ae4da29ec9dd027575174a5f594cfd68c3f3bb5d
11. 0xb92ce528788d2ef7391980b379f538b34e146592e2233d465548750c74187c9f
12. 0xbfa98a981ac79123cf0e3c1136bb6a91530861c176632b87f390ea08f8ca340f
13. 0x7f155f68af02d8849db98e7526c24e043693127acc289e6a058a9d26a9c83335
14. 0x13a2df73da081eeb4e6752fd2a3d176d9f2a8d2dd01b46f18b266eb7116ace2f
15. 0xab4e84d781dccd579dcf5c47a356a4a2e6cac58a2aefdf3543a3fa15238fa4db
16. 0x74cf00e07b52415c2184cf20be69d195ed2725497a6892c2f3e449497c17d0ec
17. 0x7a743a0a09057bae687051274e1d45bf973bd36a1a4ba16a191b5d29e3bdfa2a
18. 0xe027395fafb7fc41921c42ca0542524ea22204cbd5908b70b27f3d5fb26f5d0f

Day root

0x2c19037464cc4c493624565f01775d6446fc78eaa118fc6865bfe2bfca9ff78e

Chained

0xd1d7dee8322ceff8f4c8d83aa1fe4a4466825c2af1c97dbde3d35db61234f7be

Published

On Arc Testnet, block 69584042: 0x8bae2b1d097834c8b458513862d70d29ee807e98dc2e863b27250131c15b35ae