Evidence row 1828796

What was observed

{
  "endpoints": [
    [
      "mcp",
      "https://catalog-machine.usefulapi.io/mcp"
    ],
    [
      "web",
      "https://usefulapi.io/catalog-machine/"
    ]
  ],
  "name": "Catalog Machine MCP by usefulapi",
  "owner_address": null,
  "raw": {
    "_meta": {
      "io.modelcontextprotocol.registry/official": {
        "isLatest": true,
        "publishedAt": "2026-11-01T20:36:13.610334Z",
        "status": "active",
        "statusChangedAt": "2026-11-01T20:36:13.610334Z",
        "updatedAt": "2026-11-01T20:36:13.610334Z"
      }
    },
    "server": {
      "$schema": "https://static.modelcontextprotocol.io/schemas/2025-12-11/server.schema.json",
      "description": "Read products, orders and catalogs; update products and rebuild catalog PDFs in Catalog Machine.",
      "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/catalog-machine",
      "remotes": [
        {
          "type": "streamable-http",
          "url": "https://catalog-machine.usefulapi.io/mcp"
        }
      ],
      "repository": {
        "source": "github",
        "subfolder": "servers/catalog-machine",
        "url": "https://github.com/m190/usefulapi-mcp"
      },
      "title": "Catalog Machine MCP by usefulapi",
      "version": "1.0.0",
      "websiteUrl": "https://usefulapi.io/catalog-machine/"
    }
  },
  "source": "mcp_registry",
  "summary": "Read products, orders and catalogs; update products and rebuild catalog PDFs in Catalog Machine."
}

What the leaf hashes

{"body":"fd1f1538c32976453d6f8464c483d60ffa483672abf920ce407aa668ced25baa","id":1828796,"kind":"listing","method":"sync.mcp_registry/1","observed_us":1793567869126664,"prev":null,"subject":"mcp_registry:io.usefulapi/catalog-machine","subject_kind":"source_record"}

Proof

Fold these into the leaf in order, hashing each sorted pair with keccak256, to reach the root of 2026-11-01 (302406 rows).

1. 0x1b8a09c110f8806bde387968a58cfa1260fe905d643a4328a1ce128387a1ecb2
2. 0x22a8a5475a900a6dc22b465aa91dbc06dd4e4ad3a48136f7e5a3630b63ab447f
3. 0x2089d82d043d19b19db1970c1868a142176773561466dbdda9be01f43dc306cb
4. 0xa05e618e289a04c9a14c24e0a78fc12276af23ed571478c180e3c46db9e708d5
5. 0xa0596a11a94fa27e216fea4798cd5803075e984aba29c47b496a567824eeaa46
6. 0x589ff3c8c0f098e273e9bd075dc4622a4dabc014edd409c65d01b5f8fae08fdc
7. 0xaeaf072f1cf6b7bd29da10bea2eed37e0391822f96739f51837a9c26a1182a77
8. 0x27a09d6c97c7568e09bfbafc61b122d1c54c70e1b52d2f51d3de4de0801dffc6
9. 0x55a31964b6a22d165b6cf53a6264bb2ba4b247503603dafe577951e7cb549af7
10. 0x7feb18ab4810da4328c701e174fbe4d669af9db4af8e332e0cda53462b7593a2
11. 0x28314cbf4ea168f3ce449ba5275acf777ea2e975e841514970c2d41c44f72237
12. 0x57d88367ee180afa29761a07ed31b3a7c30cf755867eb29b4aa502db53e71e88
13. 0xe932a6d750c9158a9531e23362139f67f1dcf32cd64229987581f24d7a22fe71
14. 0xa4d26e861503b80bb91bc89e98fcc6daf0fcf003f5a144540ccd91637ccdc11f
15. 0xf1aed005f71411c0df252d9623f284bcac7de199e24c4d4cd5df3e8d3348d3aa
16. 0x5cf5a0a57795246f996e480f05ed085c19d02f7d6e8fc3ddc392412466554f0f
17. 0x02b3554752e71a19b12d7a76dbff436e85387226ceec89fdebdcdaf0122c2932
18. 0x1973893697931b7512ae5dc1a3c92ef92f633ae3574dce9029a35b5e94d2d364
19. 0x3315fd2757fdd435852cc277377234a3f3909a6d2a089d0e36f6d59aacfda910

Day root

0x7fa2cba1cf3d6b35630896f5fe1a650adb307ea2c376e80a5f2d9276b7cb5ab3

Chained

0x577ff89ba012beeff3197bcff7fa86752074bdf54205a24359cc437be2a952a4

Published

On Arc Testnet, block 70262758: 0x435bc1b9331471d72e1998f2e420983b5189d4da65ffbd6f27ef40daf5e1ea90