Evidence row 1500487

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": "2026-10-31T17:14:58.411231Z",
        "status": "active",
        "statusChangedAt": "2026-10-31T17:14:58.411231Z",
        "updatedAt": "2026-10-31T17:14:58.411231Z"
      }
    },
    "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": "1.2.0",
      "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":"c502bdc2cb21d3686ebc9d026d591ab0f245d4ecd8412e9f121fc8a0056edcf9","id":1500487,"kind":"listing","method":"sync.mcp_registry/1","observed_us":1793466976982242,"prev":1482293,"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. 0x0f425b9fa4ea14675b5027143be1104966ac784e7b22bafaf5b40dae17b6eee8
2. 0x94a511489949c6da64dc6a3154178672cdd9cf72ccf3746082dac78aa46f8dae
3. 0x577ee829910da4ddaeb53142afb0319de02de2fcf7bcdf6487e119de3e20887d
4. 0x5f71a9e50916fdf5663d269ce854bca028ccfc6ff6006291ad7852d1ff61b149
5. 0x30ec7d05af5becd568fa0b988d0875fae17b442372dcb4350c8b9c3957eab113
6. 0x6ba8d3ca7d6089f2e2e380093ee87022064071510d0426853c461a49288605fd
7. 0x9045c638b280088417f9b60827c6a9d64f15ea4a9a290f5d46bf46b98e88f04c
8. 0x1afc415cf5488d1ca3b72963337bc62dca87e65033504e31ccf9722ee4f3c37a
9. 0xa6a143719f755f4d52197ba6b8e1ec05361d31407cdccb3e060ceac2dc27a46a
10. 0x270ac2574d6da0f920d9ee60c1aba0e9a1dd82e6caff22775410498d9c25f4f6
11. 0xbec0f05496095c4e0192fdb92223d941809f32261193c957af37f625fb9a15d3
12. 0x353b0e62243cf4740dc2ec1cbec4a19063bd5a1d9f654c5c0d568e8cf638ea7b
13. 0xcb2cb28a33039aae566babd0a0b4f4ee907393fb561a2e3c876f0270ee9a2350
14. 0x5f01ce2f7be13617b127cba8dfc54bc12d54dc74dbe1632c8104af22668fd4f3
15. 0x72fbe549c493739bb99e38209648de550f136f904e61b4f7609a937c2630a055
16. 0x2bca4aa3c59fe9209016c64bd8b706423477e3407201a00165afde9abf6fee2b
17. 0x37f13582abb3c002d51c2f190c312129cbc3a39754618fee2c75c2441bb1eb94
18. 0x59f83f7228f07febe2780660e422e171b0359b8aa031ee3be07e991118130c15

Day root

0x24463725d1c0d9894bd6123691d532547aaa79f0762c0e45aa6a68acf1fd71ab

Chained

0x7d4824ff313dee7252a46f9d5c37b452851deb6c9f24a40c2f74ee0e53c82980

Published

On Arc Testnet, block 70093156: 0xedb7b832f4ebf6781b5ecd2ed241c435b862f4d3761541fa31adc1831b8c44a0