Evidence row 56549

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": "2026-10-25T22:35:16.543586Z",
        "status": "active",
        "statusChangedAt": "2026-10-25T22:35:16.543586Z",
        "updatedAt": "2026-10-25T22:35:16.543586Z"
      }
    },
    "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": "1.4.0",
      "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":"4e7937d86634ac07e4e4323433bff0d6818e373225fff3bc2d13afb5cd2f51f8","id":56549,"kind":"listing","method":"baseline/1","observed_us":1793025440095978,"prev":null,"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 2026-10-26 (296695 rows).

1. 0xc10fd2476751efe85c5eb40542fd5c018e1f7c62de3a1c3e1b7f686dd8a761c6
2. 0xe71717dea86496f949abf332a8146f10c6412111801c5428f5475eddcc38d844
3. 0x098e267342e743ef7d009e03951d1a61193e40f1579695070aa9d9a05d2588c5
4. 0x67134d5097bd9795e8142621c4e0661cec2c570f0793530d7d95c54bce9fe32f
5. 0xb9b0a4a76ff22c2f4954b5abab52a4b96b731d2f4c4ea2e392fa052cc93b0c57
6. 0x34509a1896a00b43029adbd4acbb2cb27ec55a0fb300a8ead2a7395a08158717
7. 0x853ccbd735a705ff8eb3bf374098f39f91beff4d5ec9f5c3e1e2e8b9d3ac8927
8. 0x93719eb67be9bde1f418fea40be2d586b53ff7f9b2de361a75b44c696ff24dc8
9. 0xefd3cb95a3c593a4940e36330409636134e11a415de8e7933994950677c3fd3f
10. 0xdb630840559ca98efe4caba77a155e418f81e1eb0b7bac122b345364c8b871dd
11. 0xf4fdcce8aa5f97c7e98aeab4ad558743dfee0aa6d4d12415896a148aee663b17
12. 0x111576180a2fecebcaf560e6b72ed8cefedaacb8c607539ece417b7465831f66
13. 0x96eae331a78c1c9248bc58130ff83d31b884760a51fe7191de2a39105ae7c072
14. 0xdbe2e8dd65ea1248b2936612538f18268abd5cf27ebdab3737694571ad496004
15. 0x9f68b5e15459cb62b8c0cd4c124fa61c74147b4a5755a200fbecd21a581635d1
16. 0x123ec8bee20ddc55223eeef5a4f4d6c4b6416515adbb911c56759f5cde56e452
17. 0xd0651cb9bc8155eb52b5247d506e74b8a935057dc190ba52091702ac25ed3a40
18. 0x9a9024edb5069d88a324facb310a5ce8e495214bbaa968f077bede437390194f
19. 0x9b9ce5b74b9bab5121612ef6b64920a8d453cbf311096a423eef9702747e868a

Day root

0xf43e8dcc3d451a4788b26be904c55e8c4c0fa75c9666796c51db38d37e2c0df8

Chained

0x702d5ac508f08b0d1accf36af25822d8e5660367494edd17a642fb61e158a57a

Published

On Arc Testnet, block 69251483: 0x495162f8936e19f0039918feebe6c307f327cd6bf8c37219620b1970041fa9ae