Evidence row 1500329

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": "2026-10-31T17:14:28.885766Z",
        "status": "active",
        "statusChangedAt": "2026-10-31T17:14:28.885766Z",
        "updatedAt": "2026-10-31T17:14:28.885766Z"
      }
    },
    "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": "1.18.0",
      "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":"fe12b8614a784b9ed25be7ad372f05a5c72dd54be81e55ef834921c05da9ad34","id":1500329,"kind":"listing","method":"sync.mcp_registry/1","observed_us":1793466975961925,"prev":1482124,"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. 0xcfd39f4f5fd0a55957c123b5bd8fe936c83d607e5d90e1e9183729cdf5255dc4
2. 0xbc823c8857cf20688210d0ebcb7fd02af93a61867801654e774fbda87fd1e186
3. 0xbd87253d6fcc48dae153ce31268c3875d8b9e34d30b296799d6e6a38eb16936d
4. 0x5587b3d209ea1d171db8a0b497b1f8139c7c320cc71c04eda197d6a54da7d129
5. 0x48f58b28fce680b2be296f7656306239a585b4a1248f30b496a46b86ac4025a5
6. 0x978e216ee650c7017540d70a0d323026dc370baaf312ca238dfaed8408e6e715
7. 0xa3da93a0ba41f83c323e0a976c4e9ae0f607bfcee2d9000651b9e0fa9d4b0470
8. 0xc45c5dd0383d548d81b39b71ec532192dd71ceb57adfe67f7c47ce0ddefc7b40
9. 0x62a2c0b8b73c4b45146cf1264823b9a6812fdfb2a2e113964fab8f3784815c62
10. 0xeedc4c1115bdd80b45a6800af9992d25d62f17fcbbae6932c9f1d36967de1d16
11. 0x85330b5faa14019d4dcf57a10b9b4edfe7f6af2e1b69f202244bd89bc3c0c142
12. 0xba868b2f1cd63acc426cbe69b330be28a71a278a86a64bc4049a67caba3b7373
13. 0x879ea14b1df50a9eb1b0b6c572c1b9a9c8ea03779d4e7040c5836848130f41fc
14. 0x0914258a3cd32c99db9301b59460f511f2cae6747f3045a418ce9caa1edb7ef9
15. 0xad3f03d7f9e1b66264ddfca29446faf13bc0fee7d8eec5f018d0d45302d3f8fd
16. 0x24f03354dcb3a621317889ed99048bdf74b380516ca991bfb585c751d5cc7dfd
17. 0xa1146af524f673843507e7427a575964580eef01bc0e0eae466a7920df017ab2
18. 0x0504a25438f3c7932125463198ca74c5064f23f71a5c92763b3fc96a98cc8b57

Day root

0x24463725d1c0d9894bd6123691d532547aaa79f0762c0e45aa6a68acf1fd71ab

Chained

0x7d4824ff313dee7252a46f9d5c37b452851deb6c9f24a40c2f74ee0e53c82980

Published

On Arc Testnet, block 70093156: 0xedb7b832f4ebf6781b5ecd2ed241c435b862f4d3761541fa31adc1831b8c44a0