Evidence row 3957884

What was observed

{
  "endpoints": [
    [
      "mcp",
      "https://climatools.usefulapi.io/mcp"
    ],
    [
      "web",
      "https://usefulapi.io/climatools/"
    ]
  ],
  "name": "Climatools MCP by usefulapi",
  "owner_address": null,
  "raw": {
    "_meta": {
      "io.modelcontextprotocol.registry/official": {
        "isLatest": true,
        "publishedAt": "2026-11-07T18:05:04.170352Z",
        "status": "active",
        "statusChangedAt": "2026-11-07T18:05:04.170352Z",
        "updatedAt": "2026-11-07T18:05:04.170352Z"
      }
    },
    "server": {
      "$schema": "https://static.modelcontextprotocol.io/schemas/2025-12-11/server.schema.json",
      "description": "Read companies, relations and installations; create companies and relations in Climatools.",
      "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/climatools",
      "remotes": [
        {
          "type": "streamable-http",
          "url": "https://climatools.usefulapi.io/mcp"
        }
      ],
      "repository": {
        "source": "github",
        "subfolder": "servers/climatools",
        "url": "https://github.com/m190/usefulapi-mcp"
      },
      "title": "Climatools MCP by usefulapi",
      "version": "1.3.4",
      "websiteUrl": "https://usefulapi.io/climatools/"
    }
  },
  "source": "mcp_registry",
  "summary": "Read companies, relations and installations; create companies and relations in Climatools."
}

What the leaf hashes

{"body":"d7bda3afd02693462ad10529f3b64b0170f86432e853e2324e802661469e02e1","id":3957884,"kind":"listing","method":"sync.mcp_registry/1","observed_us":1794075893428063,"prev":3945024,"subject":"mcp_registry:io.usefulapi/climatools","subject_kind":"source_record"}

Proof

Fold these into the leaf in order, hashing each sorted pair with keccak256, to reach the root of 2026-11-07 (195826 rows).

1. 0xa5cd0a080be9e00c5d4f73c7cdecae97c044a2979121994194f2f9e92bcbee6f
2. 0x60c94e3a248e44b068ff7373c89e394f2abd5013e790d663fe261460e20e1be5
3. 0x7469a3e3bc100465d5deafcc8c77ac704107ea458aa6a8c2c7c14bc23313d76f
4. 0x712eaea7fd2f223b08f90e582b097cb691f2d93ce92a51af71439342db2996ac
5. 0x8f3f244e8a403dd41489d104803916c7fae17de5bf967f400447ed193f20b716
6. 0xb7eeb7838105fdd4fba456d684d12986b4252e5b621affe8fe889d7594168985
7. 0x70ec9cc1e7f2253bc122c98c3c029fabf79c47fe9ea36227ef64050fa65666ad
8. 0x89ee191f3ec8c8557983c02a593705304f5506ef1355f324707b12bff1f7164a
9. 0x508e3ee7bb40cb498e1e6fc622cc6154c56bd04649e84edad78d0b8eb0305e34
10. 0x7b66a6405131d30088f333f7372a56546728b4f74c8e88e00decbcae35eec0b9
11. 0x79201bea60a5a3dfb34cca822d767c6a0c74356b03654ec374ca3a759bb4393c
12. 0x0e05b8a1c171fcf7fcc00d4b079ae74b6c5874651adff202df41b849af527cc0
13. 0xad78c00a716aabee544cc17bea66208d0f22b828b84f51b9fc6f8227d10367cc
14. 0x48aed00eefc8f84d1248774dbdfabcbf6a8a32d07ba72d541c50e091461df992
15. 0xd43f13f6774b4e9adf7a95c9811fb4fe9b9256ca73bc6f20577cb4cb147ba0eb
16. 0x39ddab61a3a1eeffcb2f54acf6ff87eaec375674f3e77f00c342826d4e1bf071
17. 0x3b69f6d98c91b21287021db092e52491474f0d08438393ac130d6a3c273bcd4a
18. 0xff23fa8a9de3f957315ef0dfe7e8d8f6b1a51dae05fef7615c59794e019ff05c

Day root

0x17da9e85e1b138541355d33543ff34e3503cd3a49d37728fb53643e2a0416a2d

Chained

0xed34bd4af17282643de8cb9591c84d0aa1b39e1e9ae9864941e543f5a15718cb

Published

On Arc Testnet, block 71280839: 0xc3f6784179e0ca32236ba89472473e882a81d03fcc5ce27ca58ded2e01e112aa