Evidence row 806194

What was observed

{
  "endpoints": [
    [
      "web",
      "https://backroom-api-wmk6.onrender.com/backroom/api/docs"
    ]
  ],
  "name": "Backroom",
  "owner_address": null,
  "raw": {
    "_meta": {
      "io.modelcontextprotocol.registry/official": {
        "isLatest": true,
        "publishedAt": "2026-10-28T20:23:30.835027Z",
        "status": "active",
        "statusChangedAt": "2026-10-28T20:23:30.835027Z",
        "updatedAt": "2026-10-28T20:23:30.835027Z"
      }
    },
    "server": {
      "$schema": "https://static.modelcontextprotocol.io/schemas/2025-12-11/server.schema.json",
      "description": "Invoice extraction for agents: submit a PDF, get verified structured data — never a guess.",
      "name": "io.github.pardhuparimi/backroom",
      "packages": [
        {
          "environmentVariables": [
            {
              "description": "Your Backroom API key. Mint a free test key at https://backroom-api-wmk6.onrender.com/backroom/get-a-key",
              "isRequired": true,
              "isSecret": true,
              "name": "BACKROOM_API_KEY"
            },
            {
              "description": "Backroom API base URL override; defaults to the production API.",
              "name": "BACKROOM_API_BASE"
            }
          ],
          "identifier": "backroom-mcp",
          "registryType": "pypi",
          "runtimeHint": "uvx",
          "transport": {
            "type": "stdio"
          },
          "version": "0.1.1"
        }
      ],
      "repository": {
        "source": "github",
        "subfolder": "mcp",
        "url": "https://github.com/pardhuparimi/backroom"
      },
      "title": "Backroom",
      "version": "0.1.1",
      "websiteUrl": "https://backroom-api-wmk6.onrender.com/backroom/api/docs"
    }
  },
  "source": "mcp_registry",
  "summary": "Invoice extraction for agents: submit a PDF, get verified structured data — never a guess."
}

What the leaf hashes

{"body":"93b6e03f7ecf2309260eb06a5dc8be156b8336a5ac86243ee0735ec869a7eb3c","id":806194,"kind":"listing","method":"sync.mcp_registry/1","observed_us":1793221954336406,"prev":800559,"subject":"mcp_registry:io.github.pardhuparimi/backroom","subject_kind":"source_record"}

Proof

Fold these into the leaf in order, hashing each sorted pair with keccak256, to reach the root of 2026-10-28 (231336 rows).

1. 0x7e3d36118752e73e6ee690db1c30d3cb62f496f07537bb4c35facb9e7177fda7
2. 0x4a1f73b5209d6e75ff68d3951883a9669951be1344be4a2ee3a8093c6476f138
3. 0xb1cb1260f1a0c1459596acd55772eac5bbc0dc70f6adceb443deeeed54254173
4. 0x816ebf11dd097aa93d2f5981e98d9d9542bf9cc3643c8f497e87182a9783942b
5. 0xe523a1a8a844ab655ca84e1abee80d949ecec16df1814abbd463ebcd71c28e9b
6. 0x6aca04724f3ade339313171e8f2e65a00144ba1f6038ccc4980832f77fd808a2
7. 0x09efd6b59f20f89dba34d82c9c5af08f01adba6718092b0de94ffef39d36205b
8. 0x30088cd04034f3596be8401e6d6773ce1c0f81dc8c86fcb3425503ea7c897f5c
9. 0x2ef4cd5cc4ca95b191bd159ba5f9dee41b1948708846f99f7ae0b9d00ad25808
10. 0xc61f70692adae80548acc5ac161a641931990ca1c95848a6d4ecb3cd819aa224
11. 0x0736048f82aec2b6271d333dcc2e3d6b83d61035358a6f0ae67b8db47875194c
12. 0xf1d12da4d227242f97d9bc58d06140106dee16d6d541ebe113d7c7f6ab2d8b67
13. 0xf042be8757f2f3ef070e717e38a7b0ad951d74298e721ac0b2e7855db790e392
14. 0x40581185279a8bf075dca3a4c3a5648ec6f62098ba7402cbc097d5cc707e0840
15. 0xab4e84d781dccd579dcf5c47a356a4a2e6cac58a2aefdf3543a3fa15238fa4db
16. 0x74cf00e07b52415c2184cf20be69d195ed2725497a6892c2f3e449497c17d0ec
17. 0x7a743a0a09057bae687051274e1d45bf973bd36a1a4ba16a191b5d29e3bdfa2a
18. 0xe027395fafb7fc41921c42ca0542524ea22204cbd5908b70b27f3d5fb26f5d0f

Day root

0x2c19037464cc4c493624565f01775d6446fc78eaa118fc6865bfe2bfca9ff78e

Chained

0xd1d7dee8322ceff8f4c8d83aa1fe4a4466825c2af1c97dbde3d35db61234f7be

Published

On Arc Testnet, block 69584042: 0x8bae2b1d097834c8b458513862d70d29ee807e98dc2e863b27250131c15b35ae