Evidence row 512381

What was observed

{
  "endpoints": [
    [
      "mcp",
      "https://api.wsystem.dev/mcp/"
    ],
    [
      "web",
      "https://wsystem.dev/"
    ]
  ],
  "name": "EU e-invoicing and business checks (EN 16931, Peppol, VAT, sanctions)",
  "owner_address": null,
  "raw": {
    "_meta": {
      "io.modelcontextprotocol.registry/official": {
        "isLatest": true,
        "publishedAt": "2026-10-27T15:56:22.792836Z",
        "status": "active",
        "statusChangedAt": "2026-10-27T15:56:22.792836Z",
        "updatedAt": "2026-10-27T15:56:22.792836Z"
      }
    },
    "server": {
      "$schema": "https://static.modelcontextprotocol.io/schemas/2025-12-11/server.schema.json",
      "description": "EN 16931/XRechnung e-invoice validate+create, Peppol routing, EU VAT/EORI, sanctions, KYB. Free tier",
      "name": "io.github.wsystemdev/eu-business-data-mcp",
      "remotes": [
        {
          "type": "streamable-http",
          "url": "https://api.wsystem.dev/mcp/"
        }
      ],
      "repository": {
        "source": "github",
        "url": "https://github.com/wsystemdev/eu-business-data-mcp"
      },
      "title": "EU e-invoicing and business checks (EN 16931, Peppol, VAT, sanctions)",
      "version": "1.0.4",
      "websiteUrl": "https://wsystem.dev"
    }
  },
  "source": "mcp_registry",
  "summary": "EN 16931/XRechnung e-invoice validate+create, Peppol routing, EU VAT/EORI, sanctions, KYB. Free tier"
}

What the leaf hashes

{"body":"8ad302b67af5512070e0940182aa81026391c23473738e94a1ae337abbe2e3c6","id":512381,"kind":"listing","method":"sync.mcp_registry/1","observed_us":1793118545013681,"prev":294028,"subject":"mcp_registry:io.github.wsystemdev/eu-business-data-mcp","subject_kind":"source_record"}

Proof

Fold these into the leaf in order, hashing each sorted pair with keccak256, to reach the root of 2026-10-27 (273461 rows).

1. 0x72608abd984787e0a6a47015e526a967a6da1150ef3f2a522797659c3a9613d9
2. 0x254ab47b409ece3ae0c57f626911ad9bc8ab2b05ac364c4ca43a96af3d704861
3. 0x7744f3e5b76ad640b8956af9c6e5b1abdc8a68fe14fe4c94ffef7e74ecac9a90
4. 0xdc0b65d07ad873334b4003d367f3f286f0859a277d40f89774318aac923ef164
5. 0x727edc1bf6b410cd70f94b2eaa6b4de2dd38fd1319f213c561469a9a4f044764
6. 0x1da4d8dfddc11727e41c83ab83359630df1675136ef4bc1a5669aa548f355cd1
7. 0x5c6a1b28845cf84efb058d97aa30e0249099067b8a4d6d2debf38ee844cf0bb0
8. 0xafbb8f30292c171a16c288ba35bd611596be3c3cdddf9031a942a68c55888602
9. 0x620cef3315dc1bfae1aed0304bfac899f8105261659f1b36d31f7fbe4e21389d
10. 0x7e07aef950a1f04523ad921bae323b1afe6ce5d980427f507591afaeca83c945
11. 0x36f1c88d0589e24531b7c2fe9c066893e7b891db974b9e8f5e5ebc201c6cf9ef
12. 0x8a2168d13e43e2c8b0f508ca779f90beef60501499eeab439eb7d23816a97bc4
13. 0x2926e99aefa0ff2e14a67a3ae10a7f6e753ce4b799c6fe531f8cbf8d33b31a66
14. 0xb2ae53d841a55a805fb4078b1a7d44e08a81aba4be3690bac3a5b4c366bf39da
15. 0x275720ecabb68df33eee92ae4fd70572a8d952d6c61c061c2869cfc3217aa5c5
16. 0x23cf9bb4337ee8be7fcae368fd69d24c62c11fb45882127b4cd919bb96a19996
17. 0x0e01aa9525097570a6edaf32bfc959de57bf5c24317cf10c0716affea85ca60d
18. 0xa20d48798a34aba12eb9c7297722982d910f06c148f5e27ac59307422964a585
19. 0x9fc354c0ea3efc3f1b6548bb77ea902a50f2c9647647ea61592efce2bd795699

Day root

0xdd77e5e99da32c3f154180d63e3c3e6fe11e896a2c6896412ef6b5c4bcf7e795

Chained

0x23bb4dfd09f55c15ac3962f53578e02c6114d5bfd9bb451cf8794fb6e2817ef4

Published

On Arc Testnet, block 69414147: 0xb2ebd83aafeb765a0ce66e76aefb133ed06606c98038fd56191e2bcd1dcb77b4