Evidence row 3986643

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": "2026-11-07T21:56:16.811523Z",
        "status": "active",
        "statusChangedAt": "2026-11-07T21:56:16.811523Z",
        "updatedAt": "2026-11-07T21:56:16.811523Z"
      }
    },
    "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": "1.3.5",
      "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":"1223b4361b47463b95f55ea4a74cf0948054c8054bae9f3b07c47d7343eb1a76","id":3986643,"kind":"listing","method":"sync.mcp_registry/1","observed_us":1794090324436477,"prev":3957884,"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. 0x788474c2081cc03370376ba18d9b46a81be8e8610a76604ef962e35982af5282
2. 0xdedf94a4b11c7595651e64de5d03960e8b7bb2ee55a3eee7787f28581d505864
3. 0x98e93f5af3d17b9656286697ad131d27cc3f686adb6e774ea8b3801b8ff398dd
4. 0xe5b8d0b583bfc0d1b307b3cc58e70fef980dd9a403c03ac2b466625f480704eb
5. 0xed542f71178e9c391ce860708883238d310cf3ed20d52f2827e7cc1c98c77aa4
6. 0x05dc41c8f17717760b529116e490da8f1bbbf352ad23a595c22c58e1ab63ef28
7. 0x63728383b8748e3d1e797975103f08f211b3592e049c7b042049b88c5f3831fa
8. 0x0a0503d179818b0dfb48f9dd6fd1d0557da64fb15755cc901cb653621501dfd4
9. 0xc35f029229e5eeb582f536f4dc9789eb5a088790c6b32bf4e9aa36dcfc757998
10. 0x103a2daeccb4fc7cb19e4426b1b0345deaff16ebac03192f4e2d10bb42f5ba75
11. 0x382e276b5a5b5b5698fa192ccc28d6a65c58d07e0cc4018fdf5ecf281bffb87d
12. 0x3a433af969197ca235bef6a876f4a6926b4e7d13d71d02dcb8df88cb630a1330
13. 0xd445f2917713e4a9cf58e8d6c62200bce02b187115510c936159d350d5797da6
14. 0xc9930015910e15b4a3ee7fa6677b93ccee48576a50ff5a3514be8ce187946e8f
15. 0xdda41bf8f8b807884588170276b0203d24918e4a5c47ba7f4d5d0217f85e0cf7
16. 0x9108c80d13a11b7549b554924410a7c5d215a2cd03aee9659ca627cb099f1a2e
17. 0x3b69f6d98c91b21287021db092e52491474f0d08438393ac130d6a3c273bcd4a
18. 0xff23fa8a9de3f957315ef0dfe7e8d8f6b1a51dae05fef7615c59794e019ff05c

Day root

0x17da9e85e1b138541355d33543ff34e3503cd3a49d37728fb53643e2a0416a2d

Chained

0xed34bd4af17282643de8cb9591c84d0aa1b39e1e9ae9864941e543f5a15718cb

Published

On Arc Testnet, block 71280839: 0xc3f6784179e0ca32236ba89472473e882a81d03fcc5ce27ca58ded2e01e112aa