Evidence row 1541146

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": "2026-10-31T21:44:45.366408Z",
        "status": "active",
        "statusChangedAt": "2026-10-31T21:44:45.366408Z",
        "updatedAt": "2026-10-31T21:44:45.366408Z"
      }
    },
    "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": "1.13.0",
      "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":"63e5ccb82a69e96fbf74c45a8ff2f155d358b2bb0ad6670ec98d19e5c76ff745","id":1541146,"kind":"listing","method":"sync.mcp_registry/1","observed_us":1793485021875769,"prev":1537734,"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 2026-10-31 (246033 rows).

1. 0xcc3ebd1a78f8bb03c7c8a4c740af31e4f6f7380ce0a36df01a55c5bca84c20b4
2. 0xa25c041e73d625daee0bb019d0508ab228c3930b60caad2b31b52e6447525ff3
3. 0x6892de73d2b5a1ede600c2c0d1f23213f7624e2d02126e07edbe1aa1186f3302
4. 0xf9623a39a0c48cfbe545ce8bb7ffd52532fd0495303bbd3ec61c0cafff74f214
5. 0x75ef081590062e234ed2633f72e1ff915f03d798f419c753a642122e7564e905
6. 0xbdcdd61d878e7adbac90fc6f0e5e249c15af34dc53a7ae96d4e01285b4692670
7. 0xc84b2145321129ded99ac4b02695d6756a07508dd020e4717587edfb26e7063e
8. 0x64f354778294f827adf5b334fe57a0ffb21030c93ea4a202ad36db49bc45deea
9. 0xd4ad15b4c3d290971130bbbcb3d1fdb3627c86afe8352af0694da8264bcca535
10. 0xb292294a6109fab121621490e8e93cdfc3d298ca224fb1bdd5e7039754d8c1c4
11. 0x1e9f1a83caf4f3902fa723cbba5c788e50df5392f9ca4089ed47021c9e9b1f30
12. 0x437aebbeee2b4ff0f11d394da257d0336fb0063e2b4e1f4eebb05cebd50c936f
13. 0xe0d6e3ecef4b18411e0b397b43270df35fb812a3310b2887db923fb26c7ba65e
14. 0x9b9c034ab0236a2e232e78d82d298819198dd0da36f638cae5260bb378f14798
15. 0xdd44ee37f508e0be8213cd488d246afd8e10e6e73374cc6074077c37270cda1e
16. 0x2e1cd25ce4079da9bfa6219d7ffec992149add4cd7d5c5b2cfee9908c1c8a5dd
17. 0x50003b3c3045b653f8be4232e95e80582cf5c54c14c509ba0a9a197b9e5005cb
18. 0x0504a25438f3c7932125463198ca74c5064f23f71a5c92763b3fc96a98cc8b57

Day root

0x24463725d1c0d9894bd6123691d532547aaa79f0762c0e45aa6a68acf1fd71ab

Chained

0x7d4824ff313dee7252a46f9d5c37b452851deb6c9f24a40c2f74ee0e53c82980

Published

On Arc Testnet, block 70093156: 0xedb7b832f4ebf6781b5ecd2ed241c435b862f4d3761541fa31adc1831b8c44a0