Evidence row 1851620

What was observed

{
  "endpoints": [
    [
      "web",
      "https://www.budowlanka.org/"
    ],
    [
      "mcp",
      "https://www.budowlanka.org/wp-json/site-ai/v1/mcp"
    ]
  ],
  "name": "Budowlanka.org",
  "owner_address": null,
  "raw": {
    "_meta": {
      "io.modelcontextprotocol.registry/official": {
        "isLatest": true,
        "publishedAt": "2026-11-01T23:28:31.042311Z",
        "status": "active",
        "statusChangedAt": "2026-11-01T23:28:31.042311Z",
        "updatedAt": "2026-11-01T23:28:31.042311Z"
      }
    },
    "server": {
      "$schema": "https://static.modelcontextprotocol.io/schemas/2025-12-11/server.schema.json",
      "description": "Read-only building materials catalog: product search, specs and PLN net/gross prices.",
      "name": "org.budowlanka.www/product-catalog",
      "remotes": [
        {
          "type": "streamable-http",
          "url": "https://www.budowlanka.org/wp-json/site-ai/v1/mcp"
        }
      ],
      "title": "Budowlanka.org",
      "version": "1.0.0",
      "websiteUrl": "https://www.budowlanka.org/"
    }
  },
  "source": "mcp_registry",
  "summary": "Read-only building materials catalog: product search, specs and PLN net/gross prices."
}

What the leaf hashes

{"body":"05a0cd2d7b9275b31008914804b1ebaec182234dca030cd9119a2242460d3e5b","id":1851620,"kind":"listing","method":"sync.mcp_registry/1","observed_us":1793578690190720,"prev":null,"subject":"mcp_registry:org.budowlanka.www/product-catalog","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. 0x8f40d0e63943c29a92fe37b8c9e55cc98a1e34cba78be3c36b27c0cef7101742
2. 0x7c6141b8b79629f44988efb3b7e2a8bc930b5887b720988708b13d5ebb554c86
3. 0x1e6eaf337da76a548477844c916f46d3d9c2df9d20d8c356d804cb69ae244c40
4. 0x35ff8d2f63b1e4bef456783208104bb9364c0200e2a180bdfbf4a605a92c71b4
5. 0xe18cb853c73779e7a4e705f7b9711dbc22a24adee0026e90557a9f7dc0c2fb61
6. 0x9e406df544a1f59514c82cff2fb17846c7880e24b6047556e79ff09a2826228f
7. 0x866ee72911d1ea3de2fd147469ccd04e1bfd2c80475f6361da6a70d9dca21803
8. 0xb75b301e9d800f3054d6f2f13adb3ce024371932984faec9023a930a3d08491f
9. 0x97ba3e60d8075c757cdc17046b55d280e3d7466f20794f1268152b6138b951de
10. 0x6996f163465b4245b215ee7d6cbb5c7309fcddb887d9c0295fdc4447ff46e84f
11. 0xc08191ff13ffd4ce882a8ca7667b2daeb3c9a33e44d61227acbbc63a39c40e26
12. 0x0a1171d423b8986d66fcb09b500ee0cce0433114096ff8bca257f6b3431db17f
13. 0x8e26ae8a6fa3c6baea1cd4108668ed189b835a519376f35f53b7ea9cc4800a95
14. 0x3f15e4f2fd3ab4091e7284edf8bfed23163b8ef6b0c8fdbd458a498a9bb35a32
15. 0x5d92631d189bd0292c27a05f85a5ec38ec5f4197dfe4660eb991dc6a511e25a6
16. 0x5e23ec5954c11a4530aab8c635a72b12bcfeb6fcb03c6cb1a990cc1743424543
17. 0x1805ef693fbdb2c23fcb61616f830408ca89bec1dc5b68ee47a770ffc0b9760a
18. 0x4d205063c881c48edbbb37762a8d3bbb7444d4c42daa882f663a231893d25c35
19. 0x365b161a4b68d750dcc4b3ecce1154a2163c87b08762079428e68f0ebb6a754e

Day root

0x78fecaabbe319e56f5c4b80fc02e2052e198ad24781da8832a475ff65f2002d1

Chained

0xdc35957db5d1371ca382b9152878ffece28ec7c5cb4f98fd71ddb367f8b999b2

Published

On Arc Testnet, block 70432815: 0x56b814612eb2e3e544153df3e91e1f7199106d1e430c7d8c6b653feeb9ebe9af