Evidence row 2564778

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": "2026-11-03T09:54:19.15977Z",
        "status": "active",
        "statusChangedAt": "2026-11-03T09:54:19.15977Z",
        "updatedAt": "2026-11-03T09:54:19.15977Z"
      }
    },
    "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": "1.22.0",
      "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":"c11120e269645e955901e14df4eef00aafdbba13bcee258f4d545af6d35aa3b1","id":2564778,"kind":"listing","method":"sync.mcp_registry/1","observed_us":1793701162456122,"prev":2546673,"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 2026-11-03 (425475 rows).

1. 0x9971bb0bf4fa7b0e032c54166b7bda32ee63f2e82500831014e317bd697ecd79
2. 0x96afc76e1c4a16722b13e1c4a964406acb4947700342e5d3ae13520078e99887
3. 0x6452f337e6ea2d2e86a2a0a1402676f6ecf01af0a00ce7d43e56c10827b998f7
4. 0x10d08537352d5b6bb5d93fdf3842d298438285f2063873787d9fde45c8dd658b
5. 0x51800498937998aa641823922c359e9305caff2db8a0740aa11e9d5a3fafd07d
6. 0xeaed131b5470cff8d482e30429bee451428f1f67c22bed274b14445d2b9f8d1d
7. 0x48ba9dc58f3bcd1456c2e1aef73f8e8ca25bf4a85df76821a115cc61f79e2407
8. 0x6dc1e882257b75ad42f356c57d09d3086e638fdf7a1c7ee283da198dfcb6a5bf
9. 0xb7c3338dee206640ae4365efaf0e75a2a2c1891adb69ba7f0120cf6f08d960d8
10. 0x7dc8b047bef90d12a5b2c83f8c61528f0e6ad135692b306ac2d44e847250046d
11. 0x757397e6a07acc3355e9da40f57a9ba6feda5e5823229042f0965367944e9835
12. 0xe96c3e9661ba818444523b64b69e1c93799e202d182e14e10495bf7bc6acf0d6
13. 0x047541275fbded65ddbf146d04bc8eb09e9b534f8e8c3e57ae4e8bfffd8bcb21
14. 0x7657cb1e96189305f3276517cf3716f7cacdef06e4b876b60d2c0bd8b60fda96
15. 0xbdd3407977f70b26d0af6e874d984fe982a78bf95057b70049009db10e525ebc
16. 0x77587d79b39ec04901214373cabf0c9651bc2cf065dc080615a260064314c4a5
17. 0x271a5f715272513f57457682f93389885577f2664b5ae5dcea924ad10a098eb5
18. 0x717b5d7cbc24826c5b1f7b7433bf30b76e9ba1370476af4e1b494a5211897cc3
19. 0xe35032d4b064b015fe60638756eeb0bc24e7c7943586468d33349341ee0ed3d6

Day root

0xb646ffa569e24bf8336b0a15a9d98d0a2f1239f58e10c2b18a9d22e43343566a

Chained

0x35e926359fd19031c6b5e08fb3b44f2524386a57c8fdd353336c185603f53d43

Published

On Arc Testnet, block 70601990: 0xa5f9dadba13cde129126b950e64b815e6833cb8ff53b75026c9dbe769c3768c7