Evidence row 53017

What was observed

{
  "endpoints": [
    [
      "web",
      "https://github.com/tGhattas/sysdesign-board"
    ]
  ],
  "name": "sketch/design — System Design Interview Board",
  "owner_address": null,
  "raw": {
    "_meta": {
      "io.modelcontextprotocol.registry/official": {
        "isLatest": true,
        "publishedAt": "2026-10-21T18:03:13.124061Z",
        "status": "active",
        "statusChangedAt": "2026-10-21T18:03:13.124061Z",
        "updatedAt": "2026-10-21T18:03:13.124061Z"
      }
    },
    "server": {
      "$schema": "https://static.modelcontextprotocol.io/schemas/2025-12-11/server.schema.json",
      "description": "Hand-drawn whiteboard for system design mock interviews; your AI watches, asks and gives feedback.",
      "icons": [
        {
          "mimeType": "image/png",
          "sizes": [
            "512x512"
          ],
          "src": "https://raw.githubusercontent.com/tGhattas/sysdesign-board/main/assets/icon.png"
        }
      ],
      "name": "io.github.tGhattas/sysdesign-board",
      "packages": [
        {
          "environmentVariables": [
            {
              "default": "4321",
              "description": "Local port for the whiteboard page (http://localhost:<port>). Defaults to 4321.",
              "format": "number",
              "name": "SYSDESIGN_PORT"
            }
          ],
          "identifier": "sysdesign-board",
          "registryType": "npm",
          "transport": {
            "type": "stdio"
          },
          "version": "0.1.2"
        }
      ],
      "repository": {
        "source": "github",
        "url": "https://github.com/tGhattas/sysdesign-board"
      },
      "title": "sketch/design — System Design Interview Board",
      "version": "0.1.2",
      "websiteUrl": "https://github.com/tGhattas/sysdesign-board#readme"
    }
  },
  "source": "mcp_registry",
  "summary": "Hand-drawn whiteboard for system design mock interviews; your AI watches, asks and gives feedback."
}

What the leaf hashes

{"body":"6931d9b381f452459f1dc94cf33fa0df902fe72421daae16b63f6e5c45f9fdcd","id":53017,"kind":"listing","method":"baseline/1","observed_us":1793025422027422,"prev":null,"subject":"mcp_registry:io.github.tGhattas/sysdesign-board","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. 0xe02b19a3b6d2769945e681034f09f395acb9b94254cd4dddcbb4b00df3b26ad2
2. 0x84395b43074f301768bf0bdc242a90e3f2e456e9bbcee18a313b0a7b27b9e8d8
3. 0x747330d71232267e5d6c80bda426748772981a9b235dc1f45e7ec2a096d1ca35
4. 0xf55b3ea2ae6cc9e2ad3883d0adb8676ad2604734e9238f69ab99ca7d5abe297d
5. 0xe803704affd7c117c1b2a2eda0eda2cc6a29feb8fef20e5b32bc41e10d8e6f6d
6. 0x1be9cb4ac7bd07354d3aab160f54d272d7440fd6c14b1da2246ed6c19d4b28f9
7. 0x757aff9b7e0d00091e579cbcd2d98a12bc6efe0a132cde3f28a629e61af44479
8. 0x8503b4699e2331c59be42075639dff004bcda406fd58c832da9ec14e4d9aba44
9. 0x16cb4ca51ff0730975eeaffa7ef65a08bd9a5708a11cdafec5b59f6ceff66b02
10. 0x6ff4120b0309d1afe829772edab6c960527c15f95727cac1d6a063da5f24cd85
11. 0x07a6fcdebada154e3a5a086ae2c78ad003011940759e5f38c005cc9b2ec3ef9d
12. 0x1cde596bd397df62b2525df79e5a761af7d1a292cbcfd283ea8977aecf9334e7
13. 0x3fcdf7fa32ccefe771eb57ae3015142065d64e3ce732fea7d11b9a3c99dde44f
14. 0x0b7541c75cc482a7134110311d7dbd02095d969ba21177de9b21a52a55981718
15. 0x6dc40f983a3840a0ad927a9ca17f4ff1e3b649a6c735e2a09b140db7c2caf13b
16. 0x703f95866af09c5e5d6ead7411e9a10f964a41a2aff64d4a55ff0053c023a023
17. 0xd0651cb9bc8155eb52b5247d506e74b8a935057dc190ba52091702ac25ed3a40
18. 0x9a9024edb5069d88a324facb310a5ce8e495214bbaa968f077bede437390194f
19. 0x9b9ce5b74b9bab5121612ef6b64920a8d453cbf311096a423eef9702747e868a

Day root

0xf43e8dcc3d451a4788b26be904c55e8c4c0fa75c9666796c51db38d37e2c0df8

Chained

0x702d5ac508f08b0d1accf36af25822d8e5660367494edd17a642fb61e158a57a

Published

On Arc Testnet, block 69251483: 0x495162f8936e19f0039918feebe6c307f327cd6bf8c37219620b1970041fa9ae