Evidence row 1538035

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": "2026-10-31T20:56:52.36941Z",
        "status": "active",
        "statusChangedAt": "2026-10-31T20:56:52.36941Z",
        "updatedAt": "2026-10-31T20:56:52.36941Z"
      }
    },
    "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": "1.19.0",
      "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":"a04f9c9c15fe37b8945ab6f70a080eed528322256eb583d045c22f89b2bf11a0","id":1538035,"kind":"listing","method":"sync.mcp_registry/1","observed_us":1793481418658799,"prev":1500329,"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 2026-10-31 (246033 rows).

1. 0xc9fe823255648bf7131569ed0df2a3ade86796a507ecbd015f84a5beb5600244
2. 0x0ec77dab98731a6d19b5c94a2f2f00ac7bf71e9e7c36a93f5134a692366abaff
3. 0xd1bcf18d00dbdb8c906758f0cc810d2f9cff746f31c0c6c13b8282cce616538c
4. 0x69248c756ffab894cea590368d87f83934de841f462a3581263070f0f7a3be07
5. 0x8cf2d884875ebdb829969179abccfb7de6ab8daf55c7b9eac1aea052fac9a815
6. 0x012edda0befb8831c5d13db616d5ba561902aadd18a55f7fbef5d39bec1605ba
7. 0x7f2d444543b3ddb57f5223a05a03153e0cfe534f18d6c8a3d4dd846472b08ff7
8. 0x5b211fe4256ccecd3791fdb5118069eaf8410df0edb033562b939bc58dab1490
9. 0x4fd8bc47c5385ca97db3852943b8c1121398daa9856e44f3b44bbe98ab68dd6c
10. 0x5c18899a0a932422388777952587fe574296dd8dfe50f5f0ffde843c9e4a49d6
11. 0xb17a403877dcdc345ee81cf1442485e3669e95c38222898256ba5deb61606e50
12. 0x9848da3b6eec1297925b29887f5848a0e34a120f4f695768d01669f03318e24c
13. 0xe0d6e3ecef4b18411e0b397b43270df35fb812a3310b2887db923fb26c7ba65e
14. 0x9b9c034ab0236a2e232e78d82d298819198dd0da36f638cae5260bb378f14798
15. 0xdd44ee37f508e0be8213cd488d246afd8e10e6e73374cc6074077c37270cda1e
16. 0x2e1cd25ce4079da9bfa6219d7ffec992149add4cd7d5c5b2cfee9908c1c8a5dd
17. 0x50003b3c3045b653f8be4232e95e80582cf5c54c14c509ba0a9a197b9e5005cb
18. 0x0504a25438f3c7932125463198ca74c5064f23f71a5c92763b3fc96a98cc8b57

Day root

0x24463725d1c0d9894bd6123691d532547aaa79f0762c0e45aa6a68acf1fd71ab

Chained

0x7d4824ff313dee7252a46f9d5c37b452851deb6c9f24a40c2f74ee0e53c82980

Published

On Arc Testnet, block 70093156: 0xedb7b832f4ebf6781b5ecd2ed241c435b862f4d3761541fa31adc1831b8c44a0