Evidence row 3945048

What was observed

{
  "endpoints": [
    [
      "mcp",
      "https://customcat.usefulapi.io/mcp"
    ],
    [
      "web",
      "https://usefulapi.io/customcat/"
    ]
  ],
  "name": "CustomCat MCP by usefulapi",
  "owner_address": null,
  "raw": {
    "_meta": {
      "io.modelcontextprotocol.registry/official": {
        "isLatest": true,
        "publishedAt": "2026-11-07T09:17:29.483256Z",
        "status": "active",
        "statusChangedAt": "2026-11-07T09:17:29.483256Z",
        "updatedAt": "2026-11-07T09:17:29.483256Z"
      }
    },
    "server": {
      "$schema": "https://static.modelcontextprotocol.io/schemas/2025-12-11/server.schema.json",
      "description": "Browse the CustomCat catalog, your products and designs; check shipping; create and cancel orders.",
      "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/customcat",
      "remotes": [
        {
          "type": "streamable-http",
          "url": "https://customcat.usefulapi.io/mcp"
        }
      ],
      "repository": {
        "source": "github",
        "subfolder": "servers/customcat",
        "url": "https://github.com/m190/usefulapi-mcp"
      },
      "title": "CustomCat MCP by usefulapi",
      "version": "1.16.3",
      "websiteUrl": "https://usefulapi.io/customcat/"
    }
  },
  "source": "mcp_registry",
  "summary": "Browse the CustomCat catalog, your products and designs; check shipping; create and cancel orders."
}

What the leaf hashes

{"body":"aa7bc9beba1cb691d6e2f9d013ae39f21f56985cc2a579c300d7fd9e9f5322c8","id":3945048,"kind":"listing","method":"sync.mcp_registry/1","observed_us":1794043454528609,"prev":3775068,"subject":"mcp_registry:io.usefulapi/customcat","subject_kind":"source_record"}

Proof

Fold these into the leaf in order, hashing each sorted pair with keccak256, to reach the root of 2026-11-07 (195826 rows).

1. 0x67a85d8c1f05fb75c446f6418081d232c7cf31a72ac8ccb55ebaa0b3896a6d3a
2. 0x1a8f5de90552174134029ff5db5f315dae9ce5b78fc19f4692d4815408371f53
3. 0x0acffca38253f819135d9a41b7d37f32d6510a97dc46190c1680e1d156eeab03
4. 0x57f0575b408a94558aceac5e481577e935aa3d1935389df1ac6a93b528eeac42
5. 0x72fd93604388c8fbf20dd1012f94bcb21dffbecf0a11646ea1c078a2dd7f942d
6. 0x9512fbf49ad916a94d64e2bdf9d510f56bb5baa54b5591e69d27b5998abed388
7. 0x3be6094c7d9b91b1c73968058949601d3ab582df68fb693bd78616ec5a575d2c
8. 0x53e5a28cc225a702153398230adda21a48f561d46de6362b73013b96cc7385f8
9. 0x694eda370033e52da8ec9cda3ad699cee3dc9555c3cf3ae3ee52df52033bfeb3
10. 0x1c6e2afa0a21a011beff4667bb2d2e151a4dfdc89af42c1db9376e34155f0750
11. 0xe5fa9792003b564a39ac66546c9bcef7ecc5a43d79d4a3e6e838deadca56750b
12. 0xc35c91c730b59835ab8ca02bca50f59189b9a0b73291b9095555a50b7f55b2ae
13. 0x6ac8a8f9db564ab36fc00959bad9a62018abcb06f2b9b2091fd34b447260aec6
14. 0x3c8b8590aa1491095b03c531400c6bb64d1d9d3fc078ffa5d834c3fe679a026d
15. 0x9127f3a0ab829dab5d80217ddc8d077053e20f2e260baed043c8a97478ebb2bf
16. 0x9108c80d13a11b7549b554924410a7c5d215a2cd03aee9659ca627cb099f1a2e
17. 0x3b69f6d98c91b21287021db092e52491474f0d08438393ac130d6a3c273bcd4a
18. 0xff23fa8a9de3f957315ef0dfe7e8d8f6b1a51dae05fef7615c59794e019ff05c

Day root

0x17da9e85e1b138541355d33543ff34e3503cd3a49d37728fb53643e2a0416a2d

Chained

0xed34bd4af17282643de8cb9591c84d0aa1b39e1e9ae9864941e543f5a15718cb

Published

On Arc Testnet, block 71280839: 0xc3f6784179e0ca32236ba89472473e882a81d03fcc5ce27ca58ded2e01e112aa