Evidence row 1500086

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": "2026-10-31T17:14:44.756859Z",
        "status": "active",
        "statusChangedAt": "2026-10-31T17:14:44.756859Z",
        "updatedAt": "2026-10-31T17:14:44.756859Z"
      }
    },
    "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": "1.11.0",
      "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":"67c700b7aaed398899026e51c0af9b6cfcc91ef2a3ef1a07396c1952e6d87204","id":1500086,"kind":"listing","method":"sync.mcp_registry/1","observed_us":1793466974591516,"prev":1481865,"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 2026-10-31 (246033 rows).

1. 0xa569a16f46696a4f0bcf54e189736788dc694b0fb2bcb6e194802a7bbc423c86
2. 0xea290b52482f150ba2c5e1b1d985a56bb3c44b4675e27ba8c0cd9e1b2847ed9b
3. 0x9eec7e0f8eefa7371648396abc90e62766eca041a8f1baa05dcf39c5ab817de4
4. 0x615f6b485b9298d911d01b5fd83923cfd1f1e0ea16f584e0fc476c4693c22677
5. 0xb88b42aee6d7d5fb384e353de71b074b459752f144eeb1b8c4a967d88327b6c8
6. 0xbf88d01fa35d9c6dcf556c97cccdf7af7132faa1255fe73b21f878e7cfff5231
7. 0xdce22ea1406e4e73c3d43f64b014f3198bda3479d18eec8097b9f050b557ba0f
8. 0xc468c981686808eaf90446b29570b8baad1bb2a6b1bc4c0646790a5774fad24e
9. 0xf2b303e69786cc3e1717f4a69d40ca1a91d9fc2506865613e665dddf2cb0e717
10. 0x7315827e997c04bf54a2cbe82aa40a67f5a6141aa6b64a98c72d6d3783e3d644
11. 0x5919af638a1038f89cde3bd207b44bf50cc0d1a75e744920acd5a691bfd3fe93
12. 0xc8a5be2d6d9115610947f6b032a85ced3901fcb1cd447098d4fe7cf638150636
13. 0xbb0d6a5ef6d4a77fc1050819b844be89ee9cf38eab6c5c080e1d03a1935ecfc3
14. 0xfc4e63034c3e47c4cc19a85dbacdb421762119a58090dfe0c71e13f11f75db19
15. 0xaada757a4e58b5424e31228ed7c84f378168cc321ac8ae3a78bfc8096bcc0324
16. 0x8605635b6c6bd33c6547585212170cc076018c2dd5f81f35a5ac4ade689fbb12
17. 0x50003b3c3045b653f8be4232e95e80582cf5c54c14c509ba0a9a197b9e5005cb
18. 0x0504a25438f3c7932125463198ca74c5064f23f71a5c92763b3fc96a98cc8b57

Day root

0x24463725d1c0d9894bd6123691d532547aaa79f0762c0e45aa6a68acf1fd71ab

Chained

0x7d4824ff313dee7252a46f9d5c37b452851deb6c9f24a40c2f74ee0e53c82980

Published

On Arc Testnet, block 70093156: 0xedb7b832f4ebf6781b5ecd2ed241c435b862f4d3761541fa31adc1831b8c44a0