Evidence row 2726271

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": "2026-11-03T22:29:50.898075Z",
        "status": "active",
        "statusChangedAt": "2026-11-03T22:29:50.898075Z",
        "updatedAt": "2026-11-03T22:29:50.898075Z"
      }
    },
    "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": "1.15.1",
      "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":"481860aeafb8f1001a3e61421aafa78cce314c9f2f4a6829a3d0849407e9cadc","id":2726271,"kind":"listing","method":"sync.mcp_registry/1","observed_us":1793747991681501,"prev":2564417,"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 2026-11-03 (425475 rows).

1. 0x275c01bd6a662561d1d08a6e2b31bdf2a1896c776eb435d15cc6f3afcec5d899
2. 0x38251b0b829e6e1d1b9b8bba21cd4a13f0bc2a8305fa6513e03f9a1c822eab83
3. 0xe60bb649e701b5444d0783d44778b682fbdeed46bdb8e5eab1a237be5636b29a
4. 0xcfebfd073e1e5d0f810faa20935acc480c193c902a09b79551adac46fa63dc22
5. 0xfbd6b3aec63b7f74a5e2fd91c181eb11e7fbc2fec02cb28019a4aeecd3556087
6. 0x643046ede31aa4570d7592d1bfff186e3ce8bd3073e1d640097c72b4946f3fbc
7. 0xbc1024a20ddb069458e789d943a02d0c17e2948ee619752af0e2f859875114e8
8. 0x41b3c61020678db4afd8ed2a23970e2785def3b3d379466e56dcffd8fe6a433d
9. 0xf098018cbc19551cf0bc2d5e792617bab527de50855859f3787632f7985e2487
10. 0x6bd06cec313b2bc29348aa567b9038f6b0dfb34e07b8e470b178b29258a524ce
11. 0xea0261a568207bca1246537bbb9feb4a61ef816b61f240387da4429c29d4a807
12. 0x404f5095cb117dbc273dab4f53a49ed8d1a48be81b69879f7d00d7e85e406ef1
13. 0xef1dfe0416b9867c5e84356ce47af8e533ec4133742db5d772c747b8eb9de6cf
14. 0x2eb509fa1adfd792931a660ef16ddc125428dd5ab3b79bbec78835e1899fa304
15. 0x660d0877ad8a4ac2c72a53acfa0bbeb718138f84f8d3c34fe34565fd754e39e3
16. 0xbaff679935afdbe869b23e88acf4edb06c80c1bc21fbe841145699495a3e2db3
17. 0xa82fcd0af08a38380e777cb578b71498d941c589c6401f31d445e1685adcc978
18. 0x012ad914f3f945da3b6b48eddc7a1388613e4afc04339deb76c609611864e9b9
19. 0xe35032d4b064b015fe60638756eeb0bc24e7c7943586468d33349341ee0ed3d6

Day root

0xb646ffa569e24bf8336b0a15a9d98d0a2f1239f58e10c2b18a9d22e43343566a

Chained

0x35e926359fd19031c6b5e08fb3b44f2524386a57c8fdd353336c185603f53d43

Published

On Arc Testnet, block 70601990: 0xa5f9dadba13cde129126b950e64b815e6833cb8ff53b75026c9dbe769c3768c7