Evidence row 3987256

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": "2026-11-07T21:55:37.982069Z",
        "status": "active",
        "statusChangedAt": "2026-11-07T21:55:37.982069Z",
        "updatedAt": "2026-11-07T21:55:37.982069Z"
      }
    },
    "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": "1.7.5",
      "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":"ce5372f6985d84274e7bec76e02b7c3d2ae47852792b2f2b386f2bb85744b75f","id":3987256,"kind":"listing","method":"sync.mcp_registry/1","observed_us":1794090328944176,"prev":3958472,"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 2026-11-07 (195826 rows).

1. 0x0a8eb96eb8aaf9c5354f317ead298ffc5e5a7f5905c661bba2a4644431be9089
2. 0x9677d72caaae31a2ec0401269cee8fcd1005af9ae68003ce5d2c0549e54602c7
3. 0xdf895df3bb8ff18fe3376d6fb2a9e9a0de7d344d3e183ef764f9c464268b442d
4. 0x35225a25f529fbf551660ed6a66cb1f28306d66101a32786ac8217623956eaf2
5. 0x52cc7485c921695f2ec5e4b448aaac9bc96d6ade63d7ae3f49704e713faec3a9
6. 0x9e2114caf78835537b467a059e911aaa69882b936ed848daff120206552f868a
7. 0x1afcf38c901856b6a9935eb7bc195a8800a252de8d451a3293a4ecaaa1ebac32
8. 0xa0e65a78a74eace8d5dc9f0ce4c98eae718927f20bbc990bffc40fe703ff1ca8
9. 0xfee11cf5c371401e9ba5475fac951d290ad154689f3bd095b03deb17fe687ac3
10. 0xb25bfadb33b4ce8583d16e862d10c61abbc9d73079f157ee2a078f49637a474d
11. 0x3f4563b620b6415b560b94ee294464d5544c2314daac55d1a2e3e2cc23949c2c
12. 0x1b422eea10dac97a091a370fd8ddf024929a6e7e192cd6c6a8020590df30b685
13. 0xcc8237523b2d5a08c4c820f7a8440fa8b577f989896eb892cba06931cc847cd2
14. 0x144e6f529cb7231bff37cd4bad2e3530f3ad930f9de9c48c0f73680bc7f17d30
15. 0x648a3baa51de8aa55066ecdaef86a2d63e9b16b533148da0c58eba70048b858f
16. 0x80bdd907e4cabf074c5e8d919e88abbc805de47d0c5c142e281a67157f82926f
17. 0x54292a94f447f1fd33c01b5c99da465043f11022958626a2ea562c457fef697a
18. 0xff23fa8a9de3f957315ef0dfe7e8d8f6b1a51dae05fef7615c59794e019ff05c

Day root

0x17da9e85e1b138541355d33543ff34e3503cd3a49d37728fb53643e2a0416a2d

Chained

0xed34bd4af17282643de8cb9591c84d0aa1b39e1e9ae9864941e543f5a15718cb

Published

On Arc Testnet, block 71280839: 0xc3f6784179e0ca32236ba89472473e882a81d03fcc5ce27ca58ded2e01e112aa