Evidence row 1025553

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": "2026-10-29T12:34:26.439778Z",
        "status": "active",
        "statusChangedAt": "2026-10-29T12:34:26.439778Z",
        "updatedAt": "2026-10-29T12:34:26.439778Z"
      }
    },
    "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": "1.9.0",
      "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":"f49fc6ea7ef53741bcdb0a1ace2825c3bd30c214cba5411c717082e205b7d8fd","id":1025553,"kind":"listing","method":"sync.mcp_registry/1","observed_us":1793279588925951,"prev":1005238,"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 2026-10-29 (242798 rows).

1. 0xac1601067f2d47ba991cbe1ea1bfcee5a8167d13345c36a44e8b15796ddbe07d
2. 0x3a5e8ba7cb1d32dd0134990cd1ca3ef8ca9cf4939ec14fe91c6950e9265b2e6f
3. 0x4db39070fd4eec4d1fd78f4906ab420027813aa1ba68c129106f75c0a46b1af6
4. 0xa3bbb3bd1cbc4bb5ba7038ed415e85e0a00dc4590b1313620d10cf5c62ff7430
5. 0xfe4400ab762ab57cd0549220baf3a4bb760b007f4c53b2f6984bb6e2b7ee9efa
6. 0xa1ff694f2f4cd6d600d00987869b8361dfc45f4c71d577356125dd95bf7d8a97
7. 0x0e7782fce0f409d1424efdb43716b40edc819951df81e3f8cc2b3468b39d1dea
8. 0x541ea2522d0a9d831b59fcf1500284cfd6531e0c3a11784a8a2b78dc8309c537
9. 0x9ea45c81b17c07bd8d3c35f9bdc5d04b49d0de9ccd820f3e42d80029e5c82aa9
10. 0x9ebb5a21f8b596489d1820781fe229e21a4787562488932bfebbc87019aec0dd
11. 0x3c255a60b217ec9ed846e6651480bf8764ec363f5a3dd5d65245d1b899078fcf
12. 0x30b71c9ad81534a2e54b42e8e11b8db6408ad0afb99a592dd2e13fd9406e106d
13. 0x35c7b2a2b845b27a74bd69a957781fb72baa9a27e8b6f27873316c80197e72dd
14. 0x391d7d4dd95ff3f26ed046f59cb7617fe53d7bb32216fddedcb614635f3079dc
15. 0x4a1f9fe26bf92c291485b5fb33b95d1917a994e417ac0526ccef55ede0a90a4c
16. 0xe38dc587bc010668982bd78025ac33d7326ffc2587f2de00e848da2718907ecf
17. 0xa1fa2e97e71ad6e802f325afd74bb7095901f2060529c9739182a1233f8804bc
18. 0xe01539ac4c9f9cdf265a9e5c6d99c8da11e70ff0c7175fb23e402d33b9d79785

Day root

0xc050555c6b023f2aefb6536efb9f0760b92c30a0d06c572b7daf63db259ea17c

Chained

0x4cde8bae2042512e1bec11650628f0293556311cc4ea74d99ffddf02b671a7d6

Published

On Arc Testnet, block 69753317: 0x9e85c340732f416e431b111fae72f7624870125f7f379af2732eb6c2ba8cf6a1