Evidence row 1763771

What was observed

{
  "endpoints": [
    [
      "mcp",
      "https://agent-gateway-i3gust564q-ey.a.run.app/mcp"
    ],
    [
      "web",
      "https://iotpay.eu/"
    ]
  ],
  "name": "EU EN-16931 & XRechnung Deterministic Validator",
  "owner_address": null,
  "raw": {
    "_meta": {
      "io.modelcontextprotocol.registry/official": {
        "isLatest": true,
        "publishedAt": "2026-11-01T11:24:22.889902Z",
        "status": "active",
        "statusChangedAt": "2026-11-01T11:24:22.889902Z",
        "updatedAt": "2026-11-01T11:24:22.889902Z"
      }
    },
    "server": {
      "$schema": "https://static.modelcontextprotocol.io/schemas/2025-12-11/server.schema.json",
      "_meta": {
        "io.modelcontextprotocol.registry/publisher-provided": {
          "documentation": "https://agent-gateway-i3gust564q-ey.a.run.app/.well-known/agent.json",
          "keywords": [
            "en16931",
            "xrechnung",
            "zugferd",
            "e-invoice",
            "kosit",
            "verifiable-credentials",
            "x402"
          ],
          "publisher": "iotpay.eu Validation Oracle (Sandbox)"
        }
      },
      "description": "Official KoSIT EN 16931 & XRechnung XML validator issuing signed Ed25519 VCs. Zero retention.",
      "name": "eu.iotpay/en16931-validator",
      "remotes": [
        {
          "type": "streamable-http",
          "url": "https://agent-gateway-i3gust564q-ey.a.run.app/mcp"
        }
      ],
      "title": "EU EN-16931 & XRechnung Deterministic Validator",
      "version": "0.9.0",
      "websiteUrl": "https://iotpay.eu"
    }
  },
  "source": "mcp_registry",
  "summary": "Official KoSIT EN 16931 & XRechnung XML validator issuing signed Ed25519 VCs. Zero retention."
}

What the leaf hashes

{"body":"14ce3efed79e377c7a36bb2e8ac77a32c20d0a70ef61a2d6b3aeff577b2f2108","id":1763771,"kind":"listing","method":"sync.mcp_registry/1","observed_us":1793535442398725,"prev":null,"subject":"mcp_registry:eu.iotpay/en16931-validator","subject_kind":"source_record"}

Proof

Fold these into the leaf in order, hashing each sorted pair with keccak256, to reach the root of 2026-11-01 (302406 rows).

1. 0xb17da798422125dc6261fc4aa1040590fb845cf08da6af5a3dc41740244f50a6
2. 0x12d8efc50410423e14e9b8072509d1c46781f9864db48d451cda9768cb5b4533
3. 0x2e9afc2fc18a43d204c33e25e17d82263201209452f94cd44694dc00d70d8d84
4. 0xb723a4a3bfc62965d60b5a65a7d9fdc1fbc4c892b0cf434008e54da2c00f708f
5. 0x08a04230ef4b7d12ac0e82fe78adc9f848ba830e2dad9a6931f0bfb8d5f7e2f5
6. 0x726baa22de54c364d0a922404d7df41503ce2919bbc95cd38d8098d8152d1f15
7. 0xfbe11dacba18d388f8cdabc13b7ab6900ff52b1fc665bb2e88e7e1cf84a9b9ec
8. 0x44dddb0a18ed7be63d6c6eb923b08eabf288cbc203cb487a9be32a7005aae2fc
9. 0x2bf0ddb8b9809e816edf6b8e5c9b697da197c1bf47a26405baae518abf749632
10. 0x37cbf2e8c074538735ff54f80eeec3feaea4bedb549e5f6b0f184ba8d16803f9
11. 0x44ab65f2dff2d66862f2f47acc322a833ac843909278710de9fd94f3bb83173e
12. 0xba42aa8ea7319c3a26be34cf773276493ae312dae8a293abc75cb2558262c74d
13. 0x09b948c0d8cd867de430ca3ffdb84085f96db35e2383786862f87cf6547dbabf
14. 0xa61b9b680bca298a8a4f69cdebc25b3acf2105f25b9ad6f8fe0ea50e55adf8ca
15. 0xc88d127644e311620e3bcad9c976ab2c79963799278768230b1762de9b7cd724
16. 0x8339aa87501c4d4f8b38a13e480a7c563957e09fb5711bed7cf189d6787f960d
17. 0xb5916fb7a3e87dc0702e46eeadcd22652e2e1e755f8d429cc7a14a67a350b51b
18. 0x6142ac48fda269c17791c79da99c2456ac6acfe98268f4d168a404fd6040c703
19. 0x3315fd2757fdd435852cc277377234a3f3909a6d2a089d0e36f6d59aacfda910

Day root

0x7fa2cba1cf3d6b35630896f5fe1a650adb307ea2c376e80a5f2d9276b7cb5ab3

Chained

0x577ff89ba012beeff3197bcff7fa86752074bdf54205a24359cc437be2a952a4

Published

On Arc Testnet, block 70262758: 0x435bc1b9331471d72e1998f2e420983b5189d4da65ffbd6f27ef40daf5e1ea90