Evidence row 2130116

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": "2026-11-02T11:23:03.334418Z",
        "status": "active",
        "statusChangedAt": "2026-11-02T11:23:03.334418Z",
        "updatedAt": "2026-11-02T11:23:03.334418Z"
      }
    },
    "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": "1.14.0",
      "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":"878de4fd646b38f0a1d7e911ee9a1f43620714bed718f6e31eb66f7bc9ebb6a7","id":2130116,"kind":"listing","method":"sync.mcp_registry/1","observed_us":1793621909123073,"prev":1541174,"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 2026-11-02 (444186 rows).

1. 0x70e4fd06abdeb31c74eba5d273a204a45060aee606a1fdeddab67058b6e82957
2. 0xf8c01612948358e9fc8c970121d9bbf84fbaa0ba95bcae0c02c21f5929c927ee
3. 0x639679d22aa7499a67508a3884276c1fb9082026ed17f057abda0cb5c1b7c812
4. 0x2e7355cc0d8c925d17d0d82257338e36c9756214c34912d251e9da1c651a5f64
5. 0xf3bd7b9584159621f26d200bdb06b9fb2c1a87e28e44937e73c6c0e88c886052
6. 0x361fdf89eb4d2c84a0b3edb6181890f51ec9b776208ec6c1ab89669155cd98eb
7. 0x4f8d378677842f87cd6ba9d69ce15f446744eb9f93502f8e7a42f9fb4625719d
8. 0x243f63316e5a03e3505b2f58986a6a2e1dd81357e92a25a49d314ff6331e29ca
9. 0x67ea4c113b496e576088de224310749be3b26c26f18b43fd83ea16f07fee4ff1
10. 0xb964c32717561fde2dcc8a566470154686f5d46c17872a4238c85c6f95485bac
11. 0xac15408075aa2912cf76826642b7a75a9428660e80719ce577a65c1fc701b2c8
12. 0xfae5eba0f7987b5c42177d337465c3ecc14624ad4cad3ffd025f9ac681fc2c37
13. 0x608160924e1d66c9701d48e69e878606fa6a4dd94a73d3f0570dadb0c3de65b3
14. 0xb903742c059190ddedc375958f73db84c3806732f1e54330407245d4734015f5
15. 0x2cdc73dde4ed839d7482b6b91833e64bef56c7626db8439f3bbdfcffd2ae32a3
16. 0x0e5696ae625571c52ddcd8dc09aa6c994b4ab38f2086df20d56f1f01c603e501
17. 0xf9973981f80219d4f00fa9186b40a8144accc0c9875572fb79eaea312a21a187
18. 0x4d205063c881c48edbbb37762a8d3bbb7444d4c42daa882f663a231893d25c35
19. 0x365b161a4b68d750dcc4b3ecce1154a2163c87b08762079428e68f0ebb6a754e

Day root

0x78fecaabbe319e56f5c4b80fc02e2052e198ad24781da8832a475ff65f2002d1

Chained

0xdc35957db5d1371ca382b9152878ffece28ec7c5cb4f98fd71ddb367f8b999b2

Published

On Arc Testnet, block 70432815: 0x56b814612eb2e3e544153df3e91e1f7199106d1e430c7d8c6b653feeb9ebe9af