Evidence row 1541630

What was observed

{
  "endpoints": [
    [
      "web",
      "https://usefulapi.io/weatherbit/"
    ],
    [
      "mcp",
      "https://weatherbit.usefulapi.io/mcp"
    ]
  ],
  "name": "Weatherbit MCP by usefulapi",
  "owner_address": null,
  "raw": {
    "_meta": {
      "io.modelcontextprotocol.registry/official": {
        "isLatest": true,
        "publishedAt": "2026-10-31T21:45:00.214608Z",
        "status": "active",
        "statusChangedAt": "2026-10-31T21:45:00.214608Z",
        "updatedAt": "2026-10-31T21:45:00.214608Z"
      }
    },
    "server": {
      "$schema": "https://static.modelcontextprotocol.io/schemas/2025-12-11/server.schema.json",
      "description": "Read Weatherbit forecasts, weather history, air quality, agriculture, energy, and API usage.",
      "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/weatherbit",
      "remotes": [
        {
          "type": "streamable-http",
          "url": "https://weatherbit.usefulapi.io/mcp"
        }
      ],
      "repository": {
        "source": "github",
        "subfolder": "servers/weatherbit",
        "url": "https://github.com/m190/usefulapi-mcp"
      },
      "title": "Weatherbit MCP by usefulapi",
      "version": "1.4.0",
      "websiteUrl": "https://usefulapi.io/weatherbit/"
    }
  },
  "source": "mcp_registry",
  "summary": "Read Weatherbit forecasts, weather history, air quality, agriculture, energy, and API usage."
}

What the leaf hashes

{"body":"3cd231d9a292f3e0944203d692ddd70c9a9f5b752fd0b6b04280a6afb3908d78","id":1541630,"kind":"listing","method":"sync.mcp_registry/1","observed_us":1793485024874145,"prev":1538218,"subject":"mcp_registry:io.usefulapi/weatherbit","subject_kind":"source_record"}

Proof

Fold these into the leaf in order, hashing each sorted pair with keccak256, to reach the root of 2026-10-31 (246033 rows).

1. 0x6b1d95b2aa5afd9fe9aec2a65fb5c1134d802646295a8decfdb779294d54ee5a
2. 0x9ba12333453b57ecfef36daadbd2e4ef93648029c058fe13db5fd0cb42614a53
3. 0x3c598ee1bfc7b9df68f0e070b35819132f03bad52ebe6504fc595c4478871a8c
4. 0x155a99059580792fa0e46401dda071bec638ecf6557e0d4ae63bcddc5afd106a
5. 0xc18943eebb22101d03743318bac0c65cac238d8dfc0b00ff2327a2bdeefe1555
6. 0x771edf78aec000d9e735e2ba0071fd2f8b2b5d70398bb36523b2a5acf0724363
7. 0x9509737dea5f3413753e4c41f731df2efd02fc3410fcd29a5fd28a73607013c3
8. 0x9dcb329090151a712a24e9912d77d8f428fac71e9b88e5563edad316e54c1927
9. 0xd02079edaf5764a55a676bace57474b9aafd2082f19d223fb38dba9cbb7b1069
10. 0x9f33a28d17b77d14909f0a2b819ebf637682ed6272889ec95b9c96204f9e96a7
11. 0x0559baa7ac25598e4bab8e8399c3dd2d58abdaecd77ae17c1e3f0793aa14358c
12. 0x635285598f7839cd88475306d5c6447a244f696422894fe5e26896696234472b
13. 0x1c2c743fc81bf98ad9011edc47e35ecce58da21b909d893da38929bde1fd5d8c
14. 0xac33b3310fc2d37a4e515e0c8775d4934592f3daaaf032bec47eccec8e01df31
15. 0xda82240eda32eeb01478d5898342fa15b35b5682549347c7a22660b37913617f
16. 0x919f237dec4df392868ab95f1d4300b185479ae64464cbc2e7385ad1fd6ab390
17. 0xa00a931d72706fa2402bfc9b441a12eb7c6a61ff42a542916106e3637177f101
18. 0x59f83f7228f07febe2780660e422e171b0359b8aa031ee3be07e991118130c15

Day root

0x24463725d1c0d9894bd6123691d532547aaa79f0762c0e45aa6a68acf1fd71ab

Chained

0x7d4824ff313dee7252a46f9d5c37b452851deb6c9f24a40c2f74ee0e53c82980

Published

On Arc Testnet, block 70093156: 0xedb7b832f4ebf6781b5ecd2ed241c435b862f4d3761541fa31adc1831b8c44a0