Evidence row 1249373

What was observed

{
  "endpoints": [
    [
      "web",
      "https://www.mtaapi.dev/docs/ai/mcp"
    ],
    [
      "mcp",
      "https://www.mtaapi.dev/mcp"
    ]
  ],
  "name": "MTA API",
  "owner_address": null,
  "raw": {
    "_meta": {
      "io.modelcontextprotocol.registry/official": {
        "isLatest": true,
        "publishedAt": "2026-10-30T12:31:40.005277Z",
        "status": "active",
        "statusChangedAt": "2026-10-30T12:31:40.005277Z",
        "updatedAt": "2026-10-30T12:31:40.005277Z"
      }
    },
    "server": {
      "$schema": "https://static.modelcontextprotocol.io/schemas/2025-12-11/server.schema.json",
      "description": "Live NYC subway and bus arrivals, service alerts, vehicles, and nearby stops.",
      "name": "io.github.HumanInterfaceDesign/mta-api",
      "remotes": [
        {
          "headers": [
            {
              "description": "Optional: Bearer <MTA API key>. Clients can sign in with OAuth instead.",
              "isSecret": true,
              "name": "Authorization"
            }
          ],
          "type": "streamable-http",
          "url": "https://www.mtaapi.dev/mcp"
        }
      ],
      "repository": {
        "source": "github",
        "url": "https://github.com/HumanInterfaceDesign/mta-api"
      },
      "title": "MTA API",
      "version": "1.0.0",
      "websiteUrl": "https://www.mtaapi.dev/docs/ai/mcp"
    }
  },
  "source": "mcp_registry",
  "summary": "Live NYC subway and bus arrivals, service alerts, vehicles, and nearby stops."
}

What the leaf hashes

{"body":"dac96e42e699f02e007a3764f9269a02793242f51c87360caded09f3a29bd116","id":1249373,"kind":"listing","method":"sync.mcp_registry/1","observed_us":1793366120696574,"prev":null,"subject":"mcp_registry:io.github.HumanInterfaceDesign/mta-api","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. 0xad0317a10a175bb4dea31f79f34a72cc67b88740c8796c1200f834a3a046c46d
2. 0x1a654fbff239b07b7b708d1cf5fd1f456ec66be752e2a64e31110420077e4c43
3. 0xb2d2b69c045f6e0f3c4bcf87f22671d692b80a6b1aa5983c61d148ceed7daac1
4. 0xe367d43550a873290a4a9e056aced737eb31c4c0643997410bc789b6ac14e3ec
5. 0x025dcce7d05e5a8daed1524ac8feb554b5ad03e3c5f404b3768da1bf4ef426ee
6. 0xb28e6bafdddbd7f9e35c77b08d51dc93ba0d4897ed2b1a828cdcf8e0498cebb1
7. 0x4ce1ffaaf45000a00b68c46ac117c7af8c1cfc0218c4291cb4cd9dcda470f835
8. 0x9caa5f1c07b54ebf8e6f291ae9f53f0d307dff0349024e2f1365ca25e20957d8
9. 0x155689d76f2598c9e2aef5c44e7d988fe0f4e0e54606e364c74e6519dff6d8e9
10. 0x707d1b37f6405f5012a5013a378259581bf0086fbfff8575b004caafdda56f60
11. 0x4a421255b1067e9950c61438b9a0af43982710037e033134f119b4b2f8c209c6
12. 0xf50221ca652ce2d14481b6c066bd45668186607e6def3b9f0fdefc2c0b32f857
13. 0x0409d601a89a50f7eb5f4894cbcd524cb8f362e2e58241fd0551016000226646
14. 0x4943cf5368ac3124a50a8845e933556cda4f3f7ee527441ef6351afbceee79d8
15. 0xa0b1f6bc1eecfaf70581673c1a7f638b96d1769a5c578c460337f7db0dbe963e
16. 0x0c59b8770d2782eb535aefbb9b2f6810bab4757f51b37e00f5147713a1de9481
17. 0x61ef83255d34604cb052882568ca1d1386ac3cfb8284509715bc1734cff77831
18. 0x0c43c73b62a5d49ee1444b5dc4195fc5b16b141d3f4458e2e9fbd5fd6ecb367d

Day root

0x0826c7ad6039e06a2360ca0a4a3a4fe7f2626c6dc19f71a37599386f78b39875

Chained

0x36b4c8a1063758f0b8765fa1bdf75fa92fb543cc183add3e261880ee2bd1f822

Published

On Arc Testnet, block 69923247: 0x8704744146c6967c8abc9e9a99de4db7283b29e840922ea83a69b6fe776e6861