Evidence row 41127

What was observed

{
  "endpoints": [
    [
      "mcp",
      "https://returncheck.m-angelmartinez-fer.workers.dev/mcp"
    ],
    [
      "web",
      "https://returncheck.m-angelmartinez-fer.workers.dev/"
    ]
  ],
  "name": "ReturnCheck",
  "owner_address": null,
  "raw": {
    "_meta": {
      "io.modelcontextprotocol.registry/official": {
        "isLatest": true,
        "publishedAt": "2026-08-28T15:10:01.626961Z",
        "status": "active",
        "statusChangedAt": "2026-08-28T15:10:01.626961Z",
        "updatedAt": "2026-08-28T15:10:01.626961Z"
      }
    },
    "server": {
      "$schema": "https://static.modelcontextprotocol.io/schemas/2025-12-11/server.schema.json",
      "description": "Can this product actually be returned? The merchant's exact clause, its URL and the date.",
      "name": "io.github.mangelmartinezfer-hue/returncheck",
      "packages": [
        {
          "environmentVariables": [
            {
              "description": "Optional API key. Without it you get the keyless free trial.",
              "format": "string",
              "isSecret": true,
              "name": "RETURNCHECK_API_KEY"
            },
            {
              "description": "Service endpoint. Defaults to the hosted service; change it only if you self-host.",
              "format": "string",
              "name": "RETURNCHECK_URL"
            },
            {
              "description": "Set to 'false' to let the service fetch the page instead of this machine.",
              "format": "string",
              "name": "RETURNCHECK_FETCH_LOCALLY"
            },
            {
              "description": "Budget in milliseconds for the local page read. Defaults to 8000.",
              "format": "string",
              "name": "RETURNCHECK_TIMEOUT_MS"
            }
          ],
          "identifier": "returncheck-mcp",
          "registryType": "npm",
          "transport": {
            "type": "stdio"
          },
          "version": "0.1.1"
        }
      ],
      "remotes": [
        {
          "type": "streamable-http",
          "url": "https://returncheck.m-angelmartinez-fer.workers.dev/mcp"
        }
      ],
      "repository": {
        "source": "github",
        "url": "https://github.com/mangelmartinezfer-hue/returncheck"
      },
      "title": "ReturnCheck",
      "version": "1.1.0",
      "websiteUrl": "https://returncheck.m-angelmartinez-fer.workers.dev"
    }
  },
  "source": "mcp_registry",
  "summary": "Can this product actually be returned? The merchant's exact clause, its URL and the date."
}

What the leaf hashes

{"body":"a4f814f4fda85c5489da7e91a3ddbaf0f170d2923b4e81b02324970678f7b500","id":41127,"kind":"listing","method":"baseline/1","observed_us":1793025398446815,"prev":null,"subject":"mcp_registry:io.github.mangelmartinezfer-hue/returncheck","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. 0xd01385ba6ac5f14dc8dffa8ac9cdb800469a16462216a0ccd793c6a95899b036
2. 0x83185908f16445ad9f0a6d47509d5cb0479b1aa91ef6cdffeaece98e30530ee0
3. 0x69f656fbdef0b35cd8af8805060917f0f2fdd371ff49d34ea7a888a75a525a90
4. 0x9428bd19c304ea6ccdb81859be4da51cba560e77a7c6dcd96c2d42a4f57a8b1a
5. 0xc249c76a535339e07cf7f80b977e269ee27f4d65144e682460a5c73329523c5f
6. 0x7ce7ac98a1e7b934c08cc508626b67a935656689f833b641454570e326c86308
7. 0xcd40173f90b4df6d44f2a7e1a2f9aa522e2f40f5263233a63c0876916868be73
8. 0x5d464e226347d453da0b350e2a95212488c8ce5a6efa97e93d6eaae39fcca610
9. 0x3aedbf03ef770e56c5149ef52baf35e5e367cc5dec2bcbfb6f068598f603a705
10. 0x0b686dbafff3016a42481f12f34ebfe6ab887a7ca8848d16b83a5946fcda3181
11. 0x026c75973d292b16fc9c1aefff047e2e4656075d16803275f6ae428cf2826ee1
12. 0x3f401930661bff9a668037b662b5b8766fa60035f100a3e9fc585c576d892ffa
13. 0xe43762a621da83c0b4b63f549cd2e19c428ac702bfc1038d70233867b06c447f
14. 0xefabf1105e09cf52c12c58e60cbb5048b9ac3f02631d1816a926e14bdd86fbdf
15. 0xe94ca5b798e9899ad611e57835af42266e20f53f44977e487d81365e30972beb
16. 0x703f95866af09c5e5d6ead7411e9a10f964a41a2aff64d4a55ff0053c023a023
17. 0xd0651cb9bc8155eb52b5247d506e74b8a935057dc190ba52091702ac25ed3a40
18. 0x9a9024edb5069d88a324facb310a5ce8e495214bbaa968f077bede437390194f
19. 0x9b9ce5b74b9bab5121612ef6b64920a8d453cbf311096a423eef9702747e868a

Day root

0xf43e8dcc3d451a4788b26be904c55e8c4c0fa75c9666796c51db38d37e2c0df8

Chained

0x702d5ac508f08b0d1accf36af25822d8e5660367494edd17a642fb61e158a57a

Published

On Arc Testnet, block 69251483: 0x495162f8936e19f0039918feebe6c307f327cd6bf8c37219620b1970041fa9ae