Evidence row 1538218

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": "2026-10-31T20:57:22.738541Z",
        "status": "active",
        "statusChangedAt": "2026-10-31T20:57:22.738541Z",
        "updatedAt": "2026-10-31T20:57:22.738541Z"
      }
    },
    "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": "1.3.0",
      "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":"56bd661807b53fa6944f0d34b9bbcba790e6533b653a5a92821ef4daaf2e8e63","id":1538218,"kind":"listing","method":"sync.mcp_registry/1","observed_us":1793481419755810,"prev":1500487,"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. 0x9b6f0fb78e0717b62c6e1ae2a7b9b9bf8bc49f6c8af871ff6e989dee0d979410
2. 0xb56cfc96070c0beffb5e7962c84d49d15eeb91c8151b526c99215424b98de109
3. 0x8c45af112dfd9e38b70019e10f5f22d574a19ff96be7009286aa3dd1bc0173d7
4. 0xe88e32547ed4607c7981cc3f5c3ebc6726edc89be12a4752b9c48581f2b72af6
5. 0xe41e4842a4aa5751af5382fec77cc0c8ad8ec389b2f8983e12aa2d41ddc53277
6. 0xbde1595b756e61d70f60ebfab7189948bf13a2f86f454fe13562c8986b83ea1c
7. 0x641772035f3aebbdc0bc90b6ccbfd8eae2c961622f4a2a1fff0ebb28825c7dcc
8. 0x71c2640221597f47da004ae732bc881c47715da5c854c693cc7a0d0815a03d8c
9. 0x25f6939fa5b9b8abf53cfb6039a1b6eb917885c0accc6622d6b39bb7aa60da74
10. 0x4e181eb4f342851919fcd64deefcde6b5abca8384ad64a4b01413174b1d3e691
11. 0xb3f4c155785ad92d38ef2a3ac2079676750f1da5b9a894d8572bbfda507c55e9
12. 0x28555de93eb6818e35f42921fa29a52419a6cbd4fab3490795612447aa626ebe
13. 0x62321eafffd9c0854025d4b5a16a107783937f0efc8dd9568618d722218b7250
14. 0xba1869be223f95f72276ce33e2a2c15c419c92f64870421adea6f13169667701
15. 0xaada757a4e58b5424e31228ed7c84f378168cc321ac8ae3a78bfc8096bcc0324
16. 0x8605635b6c6bd33c6547585212170cc076018c2dd5f81f35a5ac4ade689fbb12
17. 0x50003b3c3045b653f8be4232e95e80582cf5c54c14c509ba0a9a197b9e5005cb
18. 0x0504a25438f3c7932125463198ca74c5064f23f71a5c92763b3fc96a98cc8b57

Day root

0x24463725d1c0d9894bd6123691d532547aaa79f0762c0e45aa6a68acf1fd71ab

Chained

0x7d4824ff313dee7252a46f9d5c37b452851deb6c9f24a40c2f74ee0e53c82980

Published

On Arc Testnet, block 70093156: 0xedb7b832f4ebf6781b5ecd2ed241c435b862f4d3761541fa31adc1831b8c44a0