Evidence row 1249490

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": "2026-10-30T12:20:58.003857Z",
        "status": "active",
        "statusChangedAt": "2026-10-30T12:20:58.003857Z",
        "updatedAt": "2026-10-30T12:20:58.003857Z"
      }
    },
    "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": "1.9.1",
      "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":"aa91aeef90ee4ab93d0ea62b001c3098815615a2435356a26395c286a0e5e2e4","id":1249490,"kind":"listing","method":"sync.mcp_registry/1","observed_us":1793366121395498,"prev":1025553,"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 2026-10-30 (243099 rows).

1. 0xd820ea2f1481bca11fb7bdae74fe1860afa01b042c2961501dea5bca097be080
2. 0x7a4383184413b374549ce148a6e0957a1d5b3762ca584f39e43478f691c36593
3. 0x6ee700fe1e913f1219820775a932a1c567653d997450fcbb2ab3661d06d0428d
4. 0x386f36692ce3c94646b9e2e52d24c589eac89234bcc6756ed7285cfba694d23b
5. 0x9e42d99bba7ca12a0b56c2bdbd32d39eec5455e105751f83141318aa4c01742f
6. 0xa7050ba14faee10c1e771b440acaa18357c834ce086222541c41a7e50e9f7b84
7. 0xbf480e763c89f974c8aa795ec2f40c21fff8f279c94da69b05669aed675c7f7d
8. 0xe78965d254d2e93829c0eecefcade34ccf496d2aa82eee8e311e289a490d0cd3
9. 0x3fd1d9622c591b9a7a70523dbee1e50d880ead7664de42616cc3334ac87bd166
10. 0x5ec2b322470251c145fc1b8c78d1918028bb9d643511b7772e2eee96b2963e58
11. 0x4c36dbcea3e3e5eade4a988306fed59ae8899e0cd2de7beba355b847340ae978
12. 0x09e8b778a3a882a2b7e8eeaed24444fea6fbcf5ed98d2f35f1fd277129b4f6b5
13. 0xffdeb8d65b887604686b39ec0582e84786c68382b3e12fe6f56a19f9e0665614
14. 0xbfb4e09ea246d6cb4bd9c9eab033e6c0a787969a9a66a77312e83430b0de95f8
15. 0xf007cd9640267a58ddffce96e27f5682cf5c47530f53dc15dc53e4ccd405c6c9
16. 0xfbe61dc2d59668ac573e5eab865747e21d38bf2fe4c64762beef01f1018a4dea
17. 0x71e74c274b23c9047354edb6dcd2c654415e3986b8bd875dae992996ea12e22b
18. 0x0c43c73b62a5d49ee1444b5dc4195fc5b16b141d3f4458e2e9fbd5fd6ecb367d

Day root

0x0826c7ad6039e06a2360ca0a4a3a4fe7f2626c6dc19f71a37599386f78b39875

Chained

0x36b4c8a1063758f0b8765fa1bdf75fa92fb543cc183add3e261880ee2bd1f822

Published

On Arc Testnet, block 69923247: 0x8704744146c6967c8abc9e9a99de4db7283b29e840922ea83a69b6fe776e6861