Evidence row 3957906

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": "2026-11-07T18:04:09.470775Z",
        "status": "active",
        "statusChangedAt": "2026-11-07T18:04:09.470775Z",
        "updatedAt": "2026-11-07T18:04:09.470775Z"
      }
    },
    "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": "1.16.4",
      "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":"78d990e9e320d5edf71a0496237b319085313d89daff646e9fae41178170e4e1","id":3957906,"kind":"listing","method":"sync.mcp_registry/1","observed_us":1794075893557526,"prev":3945048,"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. 0x691eb0b499f31a0bf6f9f5739c055e486aeca1630964cf51a1574a1e0a80cefe
2. 0xcedb4bb468e964803fd6c01f034d2ae4532d551b75628ea91236699403227a57
3. 0xc7eb6de2ea4848200b1e7e81f2e6557bb453db4f0efacd84c9260ae2be0d660c
4. 0x385de60166a1f1707a393db95ef6055d104ee041811f45f68c72de5c0002d2ad
5. 0xca277ed137b471ea7c8884ea868652f8717fb8c8e6db932f46615a86bbb7212e
6. 0xdc314c357f697f579458f50773593eb56378ea431cbb7bf61e425e4042bc6b05
7. 0x2b4634cae336db3705be88df09b8f9669e6ff87066bac88f31eaf88eb8ee4267
8. 0xccc4b04a4e27a2b642001c54eb37ac109edc3d1cb4fcdce5177b613ebabe15df
9. 0x3715b0b0d42d6013844f9c7ae3d0a19722e5516d01120a1153844c0d1ec0b829
10. 0x00caabec887535532d5435cf994562399decc2754c896db2732d187788b5fb4b
11. 0x1b7ef6dc1fc703df37b8630e8219bf99ddb6bad3f6313a7e47521eb6195dcac7
12. 0x3caa5d136f019d997d3f62212db19b9fb3eb9eb6b5dcbd529d6b44397eaaa01d
13. 0x6ac8a8f9db564ab36fc00959bad9a62018abcb06f2b9b2091fd34b447260aec6
14. 0x3c8b8590aa1491095b03c531400c6bb64d1d9d3fc078ffa5d834c3fe679a026d
15. 0x9127f3a0ab829dab5d80217ddc8d077053e20f2e260baed043c8a97478ebb2bf
16. 0x9108c80d13a11b7549b554924410a7c5d215a2cd03aee9659ca627cb099f1a2e
17. 0x3b69f6d98c91b21287021db092e52491474f0d08438393ac130d6a3c273bcd4a
18. 0xff23fa8a9de3f957315ef0dfe7e8d8f6b1a51dae05fef7615c59794e019ff05c

Day root

0x17da9e85e1b138541355d33543ff34e3503cd3a49d37728fb53643e2a0416a2d

Chained

0xed34bd4af17282643de8cb9591c84d0aa1b39e1e9ae9864941e543f5a15718cb

Published

On Arc Testnet, block 71280839: 0xc3f6784179e0ca32236ba89472473e882a81d03fcc5ce27ca58ded2e01e112aa