Evidence row 30883

What was observed

{
  "endpoints": [
    [
      "mcp",
      "https://validatethat.io/mcp"
    ],
    [
      "web",
      "https://validatethat.io/integrations/claude"
    ]
  ],
  "name": "io.github.RyanByrne/validatethat-mcp",
  "owner_address": null,
  "raw": {
    "_meta": {
      "io.modelcontextprotocol.registry/official": {
        "isLatest": true,
        "publishedAt": "2026-06-09T15:06:54.514232Z",
        "status": "active",
        "statusChangedAt": "2026-06-09T15:06:54.514232Z",
        "updatedAt": "2026-06-09T15:06:54.514232Z"
      }
    },
    "server": {
      "$schema": "https://static.modelcontextprotocol.io/schemas/2025-12-11/server.schema.json",
      "description": "Run UX research from Claude — create card sort studies, list studies, pull headline stats.",
      "name": "io.github.RyanByrne/validatethat-mcp",
      "remotes": [
        {
          "headers": [
            {
              "description": "Bearer API token. Generate one at https://validatethat.io/dashboard/settings?tab=integrations.",
              "isRequired": true,
              "isSecret": true,
              "name": "Authorization"
            }
          ],
          "type": "streamable-http",
          "url": "https://validatethat.io/mcp"
        }
      ],
      "repository": {
        "source": "github",
        "url": "https://github.com/RyanByrne/free-card-sort"
      },
      "version": "0.1.0",
      "websiteUrl": "https://validatethat.io/integrations/claude"
    }
  },
  "source": "mcp_registry",
  "summary": "Run UX research from Claude — create card sort studies, list studies, pull headline stats."
}

What the leaf hashes

{"body":"6629423079a354bc288f023dd283e3ac57dbc3f5b1407ef196d9a4e44ecb6b89","id":30883,"kind":"listing","method":"baseline/1","observed_us":1793025363692983,"prev":null,"subject":"mcp_registry:io.github.RyanByrne/validatethat-mcp","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. 0x1503d7d7527279b0ea0ab3c1b77a91f444367b7a244387043c06670870188303
2. 0x48007c13f013fe024eeb371a2f10faaaaed7b055ae64f87ca94f2247a371dd9e
3. 0x60efefe5750ca8a2a47c7655124d1c36d100ca7b703a22ef721305fc8966be6a
4. 0x5ce33d69b3b3f89ac2d937571def87da66ff2f90c43612abb5186af362061dcd
5. 0x9791dfd4d2166e49a38789055891692be0eb4556f819dbe8bb0da0fc72a16343
6. 0xabfeb1ce7cdda8901988e9dc0fd81bcd9c3ff068528769795955f1db051d8d09
7. 0x02fe20a1ef377d0675114e069594c203564ae2d2c64923ec98fdfde5efae0955
8. 0x0be177a55d74d8c7d12aaba970948f149d1387b6cb330934d6dd0b933a4d507a
9. 0xef11a71beed9d9f71f58bb83457901650436413ebd22769e10ada1db356dabd0
10. 0x008cbf3247d4503d443f28c4c20ecbbf230ffd5cf8ab0fd65a43b17b5b4825ba
11. 0xb5d5212c69fb335bad2409aa4a0da0469cc6cc62939ca82d5235005f3b154a2b
12. 0x2412cb8bc4d10d94e1eb907d5058dd12133e55416609e1b314e811af76620542
13. 0xff1c28bdf595a3d1333e9915edc68e9c5fded7bd5923fa85870979af34cbc3b3
14. 0xb49e8c2564256e5322e375cb619d9ac70fd17c1d1eba9c991bba4cb6428f45cc
15. 0x60582ab4b41e72eb70eb0bce07fbf0fb4d2b62a8bad5be50f5d16d511adc746c
16. 0xc6a4d7899a0f442958e26505011190b7cff2483611c1b94eba9043e0ba9ac36e
17. 0x8c756542e482157df0c36464d75c937b845e4423dbbcfad08f0cf8d5a16b9a13
18. 0x20704208aa6923d6b2450ef74ede87a6e0265d46447926038fe9506e9e154b2d
19. 0x9b9ce5b74b9bab5121612ef6b64920a8d453cbf311096a423eef9702747e868a

Day root

0xf43e8dcc3d451a4788b26be904c55e8c4c0fa75c9666796c51db38d37e2c0df8

Chained

0x702d5ac508f08b0d1accf36af25822d8e5660367494edd17a642fb61e158a57a

Published

On Arc Testnet, block 69251483: 0x495162f8936e19f0039918feebe6c307f327cd6bf8c37219620b1970041fa9ae