Evidence row 1257562

What was observed

{
  "endpoints": [
    [
      "mcp",
      "https://fitssey.usefulapi.io/mcp"
    ],
    [
      "web",
      "https://usefulapi.io/fitssey/"
    ]
  ],
  "name": "Fitssey MCP by usefulapi",
  "owner_address": null,
  "raw": {
    "_meta": {
      "io.modelcontextprotocol.registry/official": {
        "isLatest": true,
        "publishedAt": "2026-10-30T15:16:13.175424Z",
        "status": "active",
        "statusChangedAt": "2026-10-30T15:16:13.175424Z",
        "updatedAt": "2026-10-30T15:16:13.175424Z"
      }
    },
    "server": {
      "$schema": "https://static.modelcontextprotocol.io/schemas/2025-12-11/server.schema.json",
      "description": "Read Fitssey schedules, class capacity, stock, pass pricing, sales and attendance reports.",
      "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/fitssey",
      "remotes": [
        {
          "type": "streamable-http",
          "url": "https://fitssey.usefulapi.io/mcp"
        }
      ],
      "repository": {
        "source": "github",
        "subfolder": "servers/fitssey",
        "url": "https://github.com/m190/usefulapi-mcp"
      },
      "title": "Fitssey MCP by usefulapi",
      "version": "1.0.2",
      "websiteUrl": "https://usefulapi.io/fitssey/"
    }
  },
  "source": "mcp_registry",
  "summary": "Read Fitssey schedules, class capacity, stock, pass pricing, sales and attendance reports."
}

What the leaf hashes

{"body":"4a655af1c0452b47fbfa1553578a0c36db3b154ac95c8ac0ba72527655f9aa90","id":1257562,"kind":"listing","method":"sync.mcp_registry/1","observed_us":1793376929326148,"prev":1249574,"subject":"mcp_registry:io.usefulapi/fitssey","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. 0x6b18af3b5ca0137ea6c79eeaf7c9e188276d7a1d83caeabc2ce102645b246045
2. 0x148dd7767f7bd3d61e2de9423dabb25c4b0ba23ee2d89934dfd36bea893a38a1
3. 0x02797646e4234a2b6935fb4e32a57e51e21f193cbb5e487d9afeb43cd34554a9
4. 0x336221cc681f26b1ac443e477c8e3999204afa09bcc94dd1359ae19d2a6e3627
5. 0xb0476bd870e42a828b005ac3c1f441203e4cf746aab14b8b9e74b076ca8c0d22
6. 0x9d495ea9fb9323ce10b08986fe1fd77c1aca7350d26aa5051e2479874cf8c793
7. 0x603a902c3ab4e85108ac648416f954a952d2541fd205e6e626dfa64e2a238bca
8. 0x6fcd739078a6f51b4517b9c6f0bb0b40a2bb2ee2dbccb5935e7bd6e5c6d87cc2
9. 0x648b2324050e795cb84ed67d12682350844c56b3ae6f7cdb5f45e58a18b520db
10. 0xb4159863831536d0420024519ed1b3cac48ebe0627d4302725a9ccbe5aad0638
11. 0xc3c5b052c2fc893af086f305ca510b5f3efb9ac87bbbb8bf61974b574851fd2d
12. 0xcf8f4b7145c5008e7219c27af9b227d364f022718fcb13718adca3db6b8000c6
13. 0x8ce6a3a19daf96525814209e150e1fd875a37f28ce52951d53a32ccf708706c2
14. 0x8202f11cea96bc04aa8008604bab4ab58756d5320e52685eb327ac1bb08a0ee6
15. 0xdf25f5d38e3fb54d3e66e3bf876db529f619041e0d21f0bc35b80003418e3d9c
16. 0xdbaaffa44665d1fa60d33d2c4075bd87629b76d01a6ee63e621e78590303b56d
17. 0xffe660edb9e5c6e3449a49454634c3e7b2f9fe703e5697f723b021735647ab7e
18. 0x30a81d8fcef4e8f9e2877c62796cfc5612fc1b251127d531dee28f8dbd5c5147

Day root

0x0826c7ad6039e06a2360ca0a4a3a4fe7f2626c6dc19f71a37599386f78b39875

Chained

0x36b4c8a1063758f0b8765fa1bdf75fa92fb543cc183add3e261880ee2bd1f822

Published

On Arc Testnet, block 69923247: 0x8704744146c6967c8abc9e9a99de4db7283b29e840922ea83a69b6fe776e6861