Evidence row 3986635

What was observed

{
  "endpoints": [
    [
      "mcp",
      "https://civicrm.usefulapi.io/mcp"
    ],
    [
      "web",
      "https://usefulapi.io/civicrm/"
    ]
  ],
  "name": "CiviCRM MCP by usefulapi",
  "owner_address": null,
  "raw": {
    "_meta": {
      "io.modelcontextprotocol.registry/official": {
        "isLatest": true,
        "publishedAt": "2026-11-07T21:55:11.698719Z",
        "status": "active",
        "statusChangedAt": "2026-11-07T21:55:11.698719Z",
        "updatedAt": "2026-11-07T21:55:11.698719Z"
      }
    },
    "server": {
      "$schema": "https://static.modelcontextprotocol.io/schemas/2025-12-11/server.schema.json",
      "description": "Work with your own CiviCRM: contacts, contributions, memberships, events; log activities.",
      "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/civicrm",
      "remotes": [
        {
          "type": "streamable-http",
          "url": "https://civicrm.usefulapi.io/mcp"
        }
      ],
      "repository": {
        "source": "github",
        "subfolder": "servers/civicrm",
        "url": "https://github.com/m190/usefulapi-mcp"
      },
      "title": "CiviCRM MCP by usefulapi",
      "version": "1.16.5",
      "websiteUrl": "https://usefulapi.io/civicrm/"
    }
  },
  "source": "mcp_registry",
  "summary": "Work with your own CiviCRM: contacts, contributions, memberships, events; log activities."
}

What the leaf hashes

{"body":"8861b86772d4c193291e20d5be848f4f6a41dfdbae8e0befd9a6fcdfd816d015","id":3986635,"kind":"listing","method":"sync.mcp_registry/1","observed_us":1794090324400187,"prev":3957876,"subject":"mcp_registry:io.usefulapi/civicrm","subject_kind":"source_record"}

Proof

Fold these into the leaf in order, hashing each sorted pair with keccak256, to reach the root of 2026-11-07 (195826 rows).

1. 0xa1664f74c21ff2bbeb4a2aea286beff6ecb8a8e99089df4f1f37b5f8d74246c2
2. 0x77cdbfac451bf3cf6d4211b3c3afe4d9a0a2f9811470646387e49325bce98ea9
3. 0x4c4cbc786a2164ebb5870a0bfeac7414b059964b33857555431bc189a41dcf98
4. 0xa72c7325b8ce610a9ff69bdcf663fed25a10be23654fd3498024914f9fc49c16
5. 0x81c273c6f6fbfeb787a19d4369fc137c17adc5985d71c45f4e68e2e5031ff3af
6. 0x92236bbf1e473c1b2e645bdf3af900ef2660d10363fb1dbfcd474d3a07aa70c8
7. 0x3e09c4d292ab8b4ef0e39e05cc1de7ddbfaee574fa3aefc15ba8173e967e7707
8. 0x277a2e533fa8d53464f6c4a34f1495d0bbc1d849366bf5b0253cecde372ff722
9. 0xfbec83ead61e72744c0651d4b6c102ed330bd4abbd5c62079c9a222de29342dc
10. 0x14b4c0ddb532636a7cac95129ead9a884409e56f2f391d022206a767b7cbbb00
11. 0x7434c0d16fce7be0fce95f562ea6dab9c27902c07f5e25688b96c9c0c1c346e0
12. 0x5a5e0798c05616e1914c5822b622e658b1a40e6a8ff3f640d4041aaf5c2a77c2
13. 0x48980d105d947ab96380901aad7ac7a00fe18dcac0fbad9632657da5f529e9ee
14. 0x48aed00eefc8f84d1248774dbdfabcbf6a8a32d07ba72d541c50e091461df992
15. 0xd43f13f6774b4e9adf7a95c9811fb4fe9b9256ca73bc6f20577cb4cb147ba0eb
16. 0x39ddab61a3a1eeffcb2f54acf6ff87eaec375674f3e77f00c342826d4e1bf071
17. 0x3b69f6d98c91b21287021db092e52491474f0d08438393ac130d6a3c273bcd4a
18. 0xff23fa8a9de3f957315ef0dfe7e8d8f6b1a51dae05fef7615c59794e019ff05c

Day root

0x17da9e85e1b138541355d33543ff34e3503cd3a49d37728fb53643e2a0416a2d

Chained

0xed34bd4af17282643de8cb9591c84d0aa1b39e1e9ae9864941e543f5a15718cb

Published

On Arc Testnet, block 71280839: 0xc3f6784179e0ca32236ba89472473e882a81d03fcc5ce27ca58ded2e01e112aa