Evidence row 1249574

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": "2026-10-30T12:21:01.271136Z",
        "status": "active",
        "statusChangedAt": "2026-10-30T12:21:01.271136Z",
        "updatedAt": "2026-10-30T12:21:01.271136Z"
      }
    },
    "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": "1.0.1",
      "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":"9315fed9a48fa08013ed810a17caab1eb237d3b7a99b45c1045b02305cb201ee","id":1249574,"kind":"listing","method":"sync.mcp_registry/1","observed_us":1793366122012697,"prev":1243151,"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. 0x915a81a60edb8987f13220b59f12b29045ca1718636d09608178ad6143ab0153
2. 0xdbe8afc6de492ec81561329f57d9295aa956e9c824d37144a479290248b06c8c
3. 0x836f1564a96e99c09383ee3c7c4876b0cf15407cf237aceb2e15470665471ebe
4. 0xc971314aaf3a4b4ddd4cbd8a2caf855db92d5ce79afd6d75ac5b3fde7d54a659
5. 0x7700ab8193f0b111bc01af9b33a5d730b64a18275f4de17531c63f38757901c4
6. 0xb6dc0a3913b0f9ab899a22ac42a0d89adfb776fe44fd829e9c0fbc117e3db07f
7. 0x8aedda79cfd9f72ed7e95df3439c3714bf8637a1db3717fd40f3b3ab2901aed7
8. 0x110ca0ad1078705b959b7c121aea800702d6378e069a2bf92692437b0422876d
9. 0x9695e77ba253de6a40d287f0d2992d5f9529b5dcc782ea266dddb59d608be7f0
10. 0xf697f78f8f3eb82713086f25548c24b2cb34e65e42ceb5e5cdd723f4840a3424
11. 0xed4bc5d0587361ac96a0062f6ebc06cf53f547b62b9802e561df1b37f73d17ca
12. 0x0f9781b768db51b0fb19a19ca7b1ebbd968328c0d451dacf4f9d16d06008a1e0
13. 0xe5c7bcff4eb1a1cddbc8bb6427c555e10172e9ed2ae1d01f85ac9bd0def75a2a
14. 0xc819bc399b4972a3a1ce1897d0bce2138291f900ae9bdb4afaf8fa23d651b490
15. 0xe722b5213af778d8f1621b8b0b61f957ac8d8bb43a780aed8989bfc357e5bc58
16. 0x835211170e79bdce1a823ec914e3532e128f77751e9074286da35091b0200284
17. 0x61ef83255d34604cb052882568ca1d1386ac3cfb8284509715bc1734cff77831
18. 0x0c43c73b62a5d49ee1444b5dc4195fc5b16b141d3f4458e2e9fbd5fd6ecb367d

Day root

0x0826c7ad6039e06a2360ca0a4a3a4fe7f2626c6dc19f71a37599386f78b39875

Chained

0x36b4c8a1063758f0b8765fa1bdf75fa92fb543cc183add3e261880ee2bd1f822

Published

On Arc Testnet, block 69923247: 0x8704744146c6967c8abc9e9a99de4db7283b29e840922ea83a69b6fe776e6861