Evidence row 56539

What was observed

{
  "endpoints": [
    [
      "mcp",
      "https://cogmento.usefulapi.io/mcp"
    ],
    [
      "web",
      "https://usefulapi.io/cogmento/"
    ]
  ],
  "name": "Cogmento MCP by usefulapi",
  "owner_address": null,
  "raw": {
    "_meta": {
      "io.modelcontextprotocol.registry/official": {
        "isLatest": true,
        "publishedAt": "2026-10-26T06:47:20.840116Z",
        "status": "active",
        "statusChangedAt": "2026-10-26T06:47:20.840116Z",
        "updatedAt": "2026-10-26T06:47:20.840116Z"
      }
    },
    "server": {
      "$schema": "https://static.modelcontextprotocol.io/schemas/2025-12-11/server.schema.json",
      "description": "Read Cogmento CRM contacts, companies, deals, tasks and cases; create records and complete tasks.",
      "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/cogmento",
      "remotes": [
        {
          "type": "streamable-http",
          "url": "https://cogmento.usefulapi.io/mcp"
        }
      ],
      "repository": {
        "source": "github",
        "subfolder": "servers/cogmento",
        "url": "https://github.com/m190/usefulapi-mcp"
      },
      "title": "Cogmento MCP by usefulapi",
      "version": "1.0.0",
      "websiteUrl": "https://usefulapi.io/cogmento/"
    }
  },
  "source": "mcp_registry",
  "summary": "Read Cogmento CRM contacts, companies, deals, tasks and cases; create records and complete tasks."
}

What the leaf hashes

{"body":"0acb7c18aa05ce09b42744de641be78e3262c8f22adfb79ee28d51bdd42f9abe","id":56539,"kind":"listing","method":"baseline/1","observed_us":1793025440082274,"prev":null,"subject":"mcp_registry:io.usefulapi/cogmento","subject_kind":"source_record"}

Proof

Fold these into the leaf in order, hashing each sorted pair with keccak256, to reach the root of 2026-10-26 (296695 rows).

1. 0x4454a7f8e2049b448d0df3a85481fe2fcae7a8924e9cc8642b85cdce482e4736
2. 0x8604546403047408056fd1da76f3b8a1d9f0372f61feb28ee6237af89f71e1da
3. 0x2b19e69660bd23585ce3067b01e74c3897d8e194ceddff39beefbb97d45cffbf
4. 0x96f8be8b72e107c751aa4b075b4f12aec2c5c0f777166c45e3960b6f3e1d37d6
5. 0x0fe249dc3118a7e4e708968ecefd921ae2e8564bba4618274c45e341591a3930
6. 0x794655ded1ad298e4114e279b8943a8e3487555cf1733af7f4323c97728129be
7. 0xf6af8d92008f9641bdb39d9800b0298840f82512751501eb848444443b03b0cb
8. 0x6f5b83a15d1123bc7507082cee7e9123d1569e9a0d03eddccfe73a78c3b2a89b
9. 0x976630b1189e6cd66fa7bed3075315f618ec08e36f127a7694c1ea9c4a0083de
10. 0xde181bf1fcb403c809d49f37f3f74a5547c660ce89eda5bb438ddeecff34c900
11. 0x1204d0e3e739db3e40f40f102e1314028f064872da22239d712e0ef4cff7deed
12. 0x2b1b47804e83988d7fd5ed8179b2334f3f43b318109b54142f6c6bd749076f9e
13. 0x54b29089c0a3cbbd6ddbe58944696110984dd5f418275cb1b77f957c56da8eab
14. 0x8b27a4c21bf4ba962fd008c8f4300bc6953764a5032b9ab0cfe696b318c45326
15. 0x4b52a97f7a80ff7778a702b85267b8d2e5c93ce160942656435c29ae7be68bf4
16. 0x2e6a32eb32761c210560e852405e2f865f958ddbe01027894f8b9c1b3433b9f0
17. 0x9a83be955a206deb65b995adfd92c58fa31c95fbbf926bd199d300e70b08b26d
18. 0x20704208aa6923d6b2450ef74ede87a6e0265d46447926038fe9506e9e154b2d
19. 0x9b9ce5b74b9bab5121612ef6b64920a8d453cbf311096a423eef9702747e868a

Day root

0xf43e8dcc3d451a4788b26be904c55e8c4c0fa75c9666796c51db38d37e2c0df8

Chained

0x702d5ac508f08b0d1accf36af25822d8e5660367494edd17a642fb61e158a57a

Published

On Arc Testnet, block 69251483: 0x495162f8936e19f0039918feebe6c307f327cd6bf8c37219620b1970041fa9ae