Evidence row 1257740

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": "2026-10-30T15:16:00.348583Z",
        "status": "active",
        "statusChangedAt": "2026-10-30T15:16:00.348583Z",
        "updatedAt": "2026-10-30T15:16:00.348583Z"
      }
    },
    "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": "1.16.2",
      "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":"8344d2cb41ac975c71aa1ec5fb0dd6e5543c5e07485b64e8ec7d4122e3aba1b6","id":1257740,"kind":"listing","method":"sync.mcp_registry/1","observed_us":1793376930538290,"prev":1249754,"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 2026-10-30 (243099 rows).

1. 0x1cf02359be1574218e877965da809ccbea867cf29445b669be42433c8d4b543e
2. 0x4c36be65918b90bafd8f65108b0e1587b58e836bb23c333661859d096d18b96c
3. 0x2631539399acad8f8f910a5097428d08a7a72ae6dde05514774abfe85828eca1
4. 0x9e018a4071a8725bb02207c99c8b32e773b275b1042490676f07900df83cf3e8
5. 0x2264c3ffa0197ca8d48b14b5ec2a20b80635d28a5d9831fcaaf58ec2fed8c89b
6. 0xd3c98c91d9a08101f3f560ef88a34a877b6554dd90c520294caf4670877e4a18
7. 0xb0174f99c12f375fb0c66fecab867c3fdb3cf6145b8939b078a57ab9df47fca3
8. 0xae7ac5ef7728aa1aeacd30de7fa457523fa68570effede8aa6ff44b9cd9e0a77
9. 0xbb2a481943852543987e2c0cf6b30b0203f8013887fb69e82c0ea4049c5933e5
10. 0x70d1a77dcdfe6e23148875c7d9134213bc5fbe525c58eeacf43da3e4a409d2c7
11. 0x715fdbf4eb361e99625f7665052191c762041c3464cec87368f06af3369cd363
12. 0x3f853a0f739682f856d848164f4b1a8d954883d0e68ea38039faddbd8191e233
13. 0xcc781b06455328640253147765ef02c8541003dffa454414609352f2328b2b27
14. 0xa25de97dbaf2a3b2e2808c2011eada63945b08a93d4bb9a6253fb7a136aa5dac
15. 0x0313631fba69cc31784d20beec069335df13219f8a8a8a8831740bca4d4aa0a0
16. 0xe2a9872e1b6a01c55a7a8cc5c05c61f3933255db5c26b9c79be4011d28685b52
17. 0xb0c9ef42e725578748f3119c9dbebf2fc437266bda013df29f98ed3ebe621403
18. 0x30a81d8fcef4e8f9e2877c62796cfc5612fc1b251127d531dee28f8dbd5c5147

Day root

0x0826c7ad6039e06a2360ca0a4a3a4fe7f2626c6dc19f71a37599386f78b39875

Chained

0x36b4c8a1063758f0b8765fa1bdf75fa92fb543cc183add3e261880ee2bd1f822

Published

On Arc Testnet, block 69923247: 0x8704744146c6967c8abc9e9a99de4db7283b29e840922ea83a69b6fe776e6861