Evidence row 1257884

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": "2026-10-30T15:16:11.955123Z",
        "status": "active",
        "statusChangedAt": "2026-10-30T15:16:11.955123Z",
        "updatedAt": "2026-10-30T15:16:11.955123Z"
      }
    },
    "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": "1.0.2",
      "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":"8703a756e4001e9b7d23f62f202568b16d48e39204a17433bb2ceb1caf04762a","id":1257884,"kind":"listing","method":"sync.mcp_registry/1","observed_us":1793376931227954,"prev":1249898,"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 2026-10-30 (243099 rows).

1. 0xab288a1cb200b35b2af47431721a2f23e00ede09741ac293098d5af7eb5f98f3
2. 0x5b8950146c6ad6bc3e03183171414a63fc7231f19894c36c106e7d69d360a2a4
3. 0x1c55478079dab7b03d60051a7848ee0bb8eaabd0afa2456780c2dcce73acd5d0
4. 0x6c3d634867cac55070a2ec03e21ecb9a3c114af290355b0855d93e5ceabf2518
5. 0xfe97f1e44de05eaa8fde196b84a6241e01d905047af0451f5470c99e8e234d1c
6. 0xe2e9db8c56d80620f78321de2b35deda56536463418a1282e0ca616c6d89f223
7. 0x4d28ac7c1885752b90f51ad9640765790946209f7e88c5442ac4cb682a01b86b
8. 0x63e0c5ef9dafc2ed2c702d4f608e60447c107743740633127e65e2e89bd87087
9. 0xa0216ed94a68b99752b98e7ed75fa91b214a8102980e369eb8a8ca94c89c32e5
10. 0xcc6f6f200254617203fbff1fd9645b1bebdeb272d744e8a5aea7539f656556e5
11. 0x426391d1da46e659dde8c19a8ce58b67540be720e50bc97ae5bbb8d93ddc993f
12. 0x76e57d82df41a8444f66943c853bf0ce1a262f9c2e19695e3f9c368cff55d095
13. 0x9889bd73e5603fc0045beeec785a4e7b83076b3dca643ee2497b1d068fa8e3fc
14. 0xe11a711cdcc033b4d3ff4f10f0568bda761703429a7ddfbf68a7fbd1d22911ff
15. 0x11b43ed362a2fd4976e11eceb94ee4b7edbaf6823474ee1c36489f8f0a0496c4
16. 0x835211170e79bdce1a823ec914e3532e128f77751e9074286da35091b0200284
17. 0x61ef83255d34604cb052882568ca1d1386ac3cfb8284509715bc1734cff77831
18. 0x0c43c73b62a5d49ee1444b5dc4195fc5b16b141d3f4458e2e9fbd5fd6ecb367d

Day root

0x0826c7ad6039e06a2360ca0a4a3a4fe7f2626c6dc19f71a37599386f78b39875

Chained

0x36b4c8a1063758f0b8765fa1bdf75fa92fb543cc183add3e261880ee2bd1f822

Published

On Arc Testnet, block 69923247: 0x8704744146c6967c8abc9e9a99de4db7283b29e840922ea83a69b6fe776e6861