Evidence row 22978

What was observed

{
  "endpoints": [
    [
      "mcp",
      "https://modelmarket.dev/tools/mcp/weather"
    ],
    [
      "web",
      "https://modelmarket.dev/tools/"
    ]
  ],
  "name": "Live weather and air quality (GAIA)",
  "owner_address": null,
  "raw": {
    "_meta": {
      "io.modelcontextprotocol.registry/official": {
        "isLatest": true,
        "publishedAt": "2026-10-20T10:19:11.715722Z",
        "status": "active",
        "statusChangedAt": "2026-10-20T10:19:11.715722Z",
        "updatedAt": "2026-10-20T10:19:11.715722Z"
      }
    },
    "server": {
      "$schema": "https://static.modelcontextprotocol.io/schemas/2025-12-11/server.schema.json",
      "description": "Weather, air quality and nearest live sensors anywhere, each with a signed receipt. Free, no key.",
      "name": "dev.modelmarket/weather",
      "remotes": [
        {
          "type": "streamable-http",
          "url": "https://modelmarket.dev/tools/mcp/weather"
        }
      ],
      "repository": {
        "source": "github",
        "url": "https://github.com/alexar76/gaia"
      },
      "title": "Live weather and air quality (GAIA)",
      "version": "1.0.0",
      "websiteUrl": "https://modelmarket.dev/tools/"
    }
  },
  "source": "mcp_registry",
  "summary": "Weather, air quality and nearest live sensors anywhere, each with a signed receipt. Free, no key."
}

What the leaf hashes

{"body":"b7f13bdb6583d649d25b64a23a1bcc31f576bbc98c464f91d4f3519c9444bec5","id":22978,"kind":"listing","method":"baseline/1","observed_us":1793025350074240,"prev":null,"subject":"mcp_registry:dev.modelmarket/weather","subject_kind":"source_record"}

Proof

Fold these into the leaf in order, hashing each sorted pair with keccak256, to reach the root of 2026-10-26 (296695 rows).

1. 0x1a83f14a810e4c4631949bbab945e36167cb5965b66807b92991e80582ca5fd7
2. 0x9bc47b420060646da06bebfeb8830d4f773bf8b03dd2a2e8d2b05749211fb3dc
3. 0x20954035070d8f39c2cb9580730e8184dfd00016a8171b31afbd10e2551eb8a9
4. 0x11fdd1d0f3c40bda3234108724871af454e88558f1e3e0263a3459339d1e2411
5. 0x5247c06364457bf31e584739511133efc92e873e3a3af6fa1a37153651d87210
6. 0xc4400b7b565b6825ff6be869d20903cb1a831148acba74220d0a5e50d2b65f35
7. 0x9e46a3bc21573a3fcb2cf8cb65fd00efe6630c7a2d9668ff4f594c406c7e8e69
8. 0x6157684a6fb2016d832ca2fa459294fa6c4d41e294063244dcf0863ae84c3c0b
9. 0x24d5aad156961d9c3f6fc7b13a88e5aab7513d450224f23a56e55a57f094f7fa
10. 0xdd23b279d0847860786130eecc85f2b83d5c655bfd9ab282efff968c5d7bdc6d
11. 0x6a51e1d524ffd968d6f505e10f76aacd4ae61fc223a88a38ef8820592653c75a
12. 0x6a8a72430804a14ec575375f3d0ca4364f58310afb2c2e8c92b72f8b75809db9
13. 0xe00c7829e46541e49a308807d357db902e06eff941a833217a8f0dbccd3964f1
14. 0x770e4376196188c7fc9ec40f8e218dc0d1cb92bba5fe0425a0edce27ca9a997f
15. 0x60582ab4b41e72eb70eb0bce07fbf0fb4d2b62a8bad5be50f5d16d511adc746c
16. 0xc6a4d7899a0f442958e26505011190b7cff2483611c1b94eba9043e0ba9ac36e
17. 0x8c756542e482157df0c36464d75c937b845e4423dbbcfad08f0cf8d5a16b9a13
18. 0x20704208aa6923d6b2450ef74ede87a6e0265d46447926038fe9506e9e154b2d
19. 0x9b9ce5b74b9bab5121612ef6b64920a8d453cbf311096a423eef9702747e868a

Day root

0xf43e8dcc3d451a4788b26be904c55e8c4c0fa75c9666796c51db38d37e2c0df8

Chained

0x702d5ac508f08b0d1accf36af25822d8e5660367494edd17a642fb61e158a57a

Published

On Arc Testnet, block 69251483: 0x495162f8936e19f0039918feebe6c307f327cd6bf8c37219620b1970041fa9ae