Evidence row 443019

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": "2026-10-27T08:35:05.888998Z",
        "status": "active",
        "statusChangedAt": "2026-10-27T08:35:05.888998Z",
        "updatedAt": "2026-10-27T08:35:05.888998Z"
      }
    },
    "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": "1.5.0",
      "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":"2589a2d96fac5a9717136b3d19b72199cfaa20d75a3c0b59f7fb6762ac899b26","id":443019,"kind":"listing","method":"sync.mcp_registry/1","observed_us":1793093257145674,"prev":56527,"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 2026-10-27 (273461 rows).

1. 0x555e1f92fbee9636c913e949965b10df28aa21ec8892e171513f33e7126113ce
2. 0xb9a9d26659e824d3af9468b04d5471cc4ba880cdafb819e6bd090297e85ecd9a
3. 0xf74fb53f696999a6c82275d20fa613a4b8cbf865f4f5222a2d5e07773c97be6a
4. 0x8bb9d48ca77c53416b4cf6d31b60e13651bda845c1d8e3a02b636fdaed8b9798
5. 0x38c218a2cd6c33d9cd5eab7b88297636548b4c005510b9b381e3fe3ab5321b8d
6. 0xf71349310e3dde552c289fd1013c8a8d70b4efbae32331ade7f5f785f516479f
7. 0x23aa0bcc13625b11b8f074dc03f470fe41716c58321049eab61a42e044d8e3a1
8. 0xa064929f67ef2af42048c23c35dfe6b1f8dd45b96c69ce4fc8ab4f810ac8375f
9. 0xb16d5b90723b0462d9a78e20eb077725d68ae0e69de108082cfb78b5affb7760
10. 0x2250983ab1b8dac7279c6d7631fe386cd95b31391cec4a472df9864e9e8abf31
11. 0x70cbb36b38089bd590d59988369200459112eeb685a3d047dc7d6f85d72f0b65
12. 0xbda8a72c454627630518fefedac1e595455f868382eb4add82d53de75ccbae18
13. 0x906b5f0e8ef1fe7894886d84f460bb3239d5f14b14ad4adff27c7dcea6265169
14. 0x674bc1173d39130be4d15bbfc7327f8a8af87eb251e54c8d4409c7e840b9e538
15. 0xb78ea6a255dd06e2f402a1a733bca392fa6243920bcba95e8b80bdfc6ce5f553
16. 0x3ed50f053eca72dfd3a9d45a11935240bfe691e57835c367ddebe2cbc49efe9d
17. 0x0e01aa9525097570a6edaf32bfc959de57bf5c24317cf10c0716affea85ca60d
18. 0xa20d48798a34aba12eb9c7297722982d910f06c148f5e27ac59307422964a585
19. 0x9fc354c0ea3efc3f1b6548bb77ea902a50f2c9647647ea61592efce2bd795699

Day root

0xdd77e5e99da32c3f154180d63e3c3e6fe11e896a2c6896412ef6b5c4bcf7e795

Chained

0x23bb4dfd09f55c15ac3962f53578e02c6114d5bfd9bb451cf8794fb6e2817ef4

Published

On Arc Testnet, block 69414147: 0xb2ebd83aafeb765a0ce66e76aefb133ed06606c98038fd56191e2bcd1dcb77b4