Evidence row 28648

What was observed

{
  "endpoints": [
    [
      "web",
      "https://uisandbox.org/"
    ]
  ],
  "name": "UISandbox",
  "owner_address": null,
  "raw": {
    "_meta": {
      "io.modelcontextprotocol.registry/official": {
        "isLatest": true,
        "publishedAt": "2026-10-21T22:08:17.579387Z",
        "status": "active",
        "statusChangedAt": "2026-10-21T22:08:17.579387Z",
        "updatedAt": "2026-10-21T22:08:17.579387Z"
      }
    },
    "server": {
      "$schema": "https://static.modelcontextprotocol.io/schemas/2025-10-17/server.schema.json",
      "description": "Play with your app's design in the browser: load a build, turn the knobs, export the code.",
      "name": "io.github.Ideelab/uisandbox",
      "packages": [
        {
          "environmentVariables": [
            {
              "description": "The app the render tools drive (verify, screenshot). Default https://uisandbox.org",
              "format": "string",
              "name": "UISANDBOX_URL"
            }
          ],
          "identifier": "uisandbox-mcp",
          "registryType": "npm",
          "transport": {
            "type": "stdio"
          },
          "version": "0.5.3"
        }
      ],
      "repository": {
        "source": "github",
        "url": "https://github.com/Ideelab/uisandbox"
      },
      "title": "UISandbox",
      "version": "0.5.3",
      "websiteUrl": "https://uisandbox.org"
    }
  },
  "source": "mcp_registry",
  "summary": "Play with your app's design in the browser: load a build, turn the knobs, export the code."
}

What the leaf hashes

{"body":"cb8f8a24e8a12ccb83c1e6473428c9f27aabb84762fb00e3e221b6be1fe9ef65","id":28648,"kind":"listing","method":"baseline/1","observed_us":1793025359911560,"prev":null,"subject":"mcp_registry:io.github.Ideelab/uisandbox","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. 0x4205977d6ce9874482b4f2587adeced4208677aa1f4dd40dc3b13642db48fe90
2. 0x064bebb7cda770c0c43bcbd2aa1678dba790bdb59f2957bedbdccdc76fc75ae5
3. 0xe9f2c832f55b26cc2ba3caa7210c1860ddd6a20feaed108884ac5c1c92056901
4. 0x344d5b09d367b9bcf41a52ce3a73125b1db88257a09c3e93d873e5473fe20456
5. 0x4b2fa35deb16432fb33b520a020491904db8cc3f7b89696b72cfeb33c7ec7e9a
6. 0x703fa5f6ba30afacf5900008e1efbd2cc2db25acaa770a41fbe7b6060c1c692d
7. 0x957c7b9c4e6db646ca278dbb1419d9e17965aa53d9a59825311047ebf10f3b1f
8. 0x5b24de25e0efbd884f8044e6997cd406ced1524715287b3bc1f1241717da28ad
9. 0xe4b55fb5554028f40e1fa2447d497ac34765aa2f6342a542f4bd2ed3677ec55b
10. 0xfeffd663d71e06910d19eae83256a9e7825e132ad736c20f6e71e3ac2dec7d86
11. 0x40430b285418db6d3a5a2c626d90ef47fc069d45eb9e4fbee49da2a4e637758f
12. 0x58f4330f9ac32da273a2a76d85bc0768d037638cddbd3d1f09d9b64094bfd942
13. 0xd406739acce2ba016f8d49081b15f266a4ea4a0b0fc5ef171c89c8fd2dda4d80
14. 0x8b27a4c21bf4ba962fd008c8f4300bc6953764a5032b9ab0cfe696b318c45326
15. 0x4b52a97f7a80ff7778a702b85267b8d2e5c93ce160942656435c29ae7be68bf4
16. 0x2e6a32eb32761c210560e852405e2f865f958ddbe01027894f8b9c1b3433b9f0
17. 0x9a83be955a206deb65b995adfd92c58fa31c95fbbf926bd199d300e70b08b26d
18. 0x20704208aa6923d6b2450ef74ede87a6e0265d46447926038fe9506e9e154b2d
19. 0x9b9ce5b74b9bab5121612ef6b64920a8d453cbf311096a423eef9702747e868a

Day root

0xf43e8dcc3d451a4788b26be904c55e8c4c0fa75c9666796c51db38d37e2c0df8

Chained

0x702d5ac508f08b0d1accf36af25822d8e5660367494edd17a642fb61e158a57a

Published

On Arc Testnet, block 69251483: 0x495162f8936e19f0039918feebe6c307f327cd6bf8c37219620b1970041fa9ae