Evidence row 2726278

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": "2026-11-03T22:30:34.761887Z",
        "status": "active",
        "statusChangedAt": "2026-11-03T22:30:34.761887Z",
        "updatedAt": "2026-11-03T22:30:34.761887Z"
      }
    },
    "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": "1.2.1",
      "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":"d159db1f9c0f220fea5d5aae026e769f6fa1e32323d0a608e54791aa68f3e505","id":2726278,"kind":"listing","method":"sync.mcp_registry/1","observed_us":1793747991704706,"prev":2564424,"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 2026-11-03 (425475 rows).

1. 0x8dc659d4b9a998e3dd7194a8b778af8b7b5e86805da781c207992e0525b468c0
2. 0x9b0125d2fef0d4c27197286f90af21cfab33b613511b3abd101918eba17ea650
3. 0xb99d4603a3ea0d28aa1c5d2558694ed870b859c232a4ccd4df8284a3920920d6
4. 0x757ddd4c2e6575607916517f4476aca4ea872a21a0359d8798416a77a3c0b01e
5. 0x217a170404e7e98c7b55badaf84688bf586a0faebd1a8c665a9130414d68b14e
6. 0xa2aece5767244adc937e800488fa9e457fd1eee4a9ac9e717cd4be82b6ddab39
7. 0x6d7fb76e7484b3acc970e3cd95bda4905b347b0bc18858a154707fedf21420c4
8. 0x9617fb30a4d8ed299c0be836b541332d211c5af45dfcd5cea1bcbf2d7d6075b6
9. 0xe323834f5f57f40dfef09b5ba5ec19ff2058602d528ab86224b0430dbbd1c9cc
10. 0x70df437f6da897ed3f81e36ec8a89d8b0b4483970904f8b3e5f323f488902514
11. 0x7da38d9c04743a698c5d1654cc47d0eace49342768326a28d0d01030ccdfe0b1
12. 0xc50944a6c69e44712ddfce9ff490d4e352b87a8d00e2a1b3535476fc163fcec9
13. 0x011a0e3ddc4ed33bcbefeaa3948dc632c682c298b43d1309b73fbfab20b67e71
14. 0xaff11aa970c81dfc542d7f358866d8f7815e0e193eb66f9d52b94183bf812c8d
15. 0xb5ab3a67e92dbd6d8eb3ea95dd8fba5b750735344b87d689cb50ea92ccaeea56
16. 0x77587d79b39ec04901214373cabf0c9651bc2cf065dc080615a260064314c4a5
17. 0x271a5f715272513f57457682f93389885577f2664b5ae5dcea924ad10a098eb5
18. 0x717b5d7cbc24826c5b1f7b7433bf30b76e9ba1370476af4e1b494a5211897cc3
19. 0xe35032d4b064b015fe60638756eeb0bc24e7c7943586468d33349341ee0ed3d6

Day root

0xb646ffa569e24bf8336b0a15a9d98d0a2f1239f58e10c2b18a9d22e43343566a

Chained

0x35e926359fd19031c6b5e08fb3b44f2524386a57c8fdd353336c185603f53d43

Published

On Arc Testnet, block 70601990: 0xa5f9dadba13cde129126b950e64b815e6833cb8ff53b75026c9dbe769c3768c7