Evidence row 54465

What was observed

{
  "endpoints": [
    [
      "web",
      "https://vatnode.dev/mcp"
    ]
  ],
  "name": "io.github.vatnode/vatnode-mcp",
  "owner_address": null,
  "raw": {
    "_meta": {
      "io.modelcontextprotocol.registry/official": {
        "isLatest": true,
        "publishedAt": "2026-09-29T20:32:55.506506Z",
        "status": "active",
        "statusChangedAt": "2026-09-29T20:32:55.506506Z",
        "updatedAt": "2026-09-29T20:32:55.506506Z"
      }
    },
    "server": {
      "$schema": "https://static.modelcontextprotocol.io/schemas/2025-12-11/server.schema.json",
      "description": "Official MCP server: EU VAT validation via VIES, plus offline rates and format checks.",
      "icons": [
        {
          "mimeType": "image/png",
          "sizes": [
            "512x512"
          ],
          "src": "https://vatnode.dev/icon.png"
        }
      ],
      "name": "io.github.vatnode/vatnode-mcp",
      "packages": [
        {
          "environmentVariables": [
            {
              "description": "vatnode API key (free tier available at https://vatnode.dev). Required only for the validate_vat_number tool — the four other tools (rates, format checks, country list) work offline without a key.",
              "isSecret": true,
              "name": "VATNODE_API_KEY"
            },
            {
              "default": "https://api.vatnode.dev",
              "description": "Override the vatnode API base URL (for self-hosting or staging environments). Defaults to https://api.vatnode.dev.",
              "name": "VATNODE_API_URL"
            }
          ],
          "identifier": "vatnode-mcp",
          "registryBaseUrl": "https://registry.npmjs.org",
          "registryType": "npm",
          "transport": {
            "type": "stdio"
          },
          "version": "1.3.0"
        }
      ],
      "repository": {
        "source": "github",
        "url": "https://github.com/vatnode/vatnode-mcp"
      },
      "version": "1.3.0",
      "websiteUrl": "https://vatnode.dev/mcp"
    }
  },
  "source": "mcp_registry",
  "summary": "Official MCP server: EU VAT validation via VIES, plus offline rates and format checks."
}

What the leaf hashes

{"body":"58fc4114881b31116b2552a5fee7767a086d10d40206b79e2bba8e79664be702","id":54465,"kind":"listing","method":"baseline/1","observed_us":1793025433601639,"prev":null,"subject":"mcp_registry:io.github.vatnode/vatnode-mcp","subject_kind":"source_record"}

Proof

Fold these into the leaf in order, hashing each sorted pair with keccak256, to reach the root of 2026-10-26 (296695 rows).

1. 0x56a10660a8d362838574626907ce0ce4e7a736d9ecf3f2034f78de7125fa1df0
2. 0x3f5c54516be6a5c9054d4a57acbab4eab810e63df9e2ea8f12744f9f2f81a56c
3. 0xb632e4ed5fa64aed63824ad20a5e9c2165c41991c2ecf2893b346cc1687b8838
4. 0xd9c54b701987ccbeaa9ee458c95521f779a102dff92beac404f97bc45ea7da58
5. 0xea433c2c21db1971b15f9f30eca10af441a38d2bd03e88a79ae8762d9268d8fe
6. 0xb279e2506052398a3a746284b00abd37c423d0461f10c3d0532fb132029e556a
7. 0xde932916bcac28736009103f404c187861675ec8dadd5d81845dc812cb7083fd
8. 0x090f90c9d9e333e8c7a27cfd5bbd3da2f86d056230ab7b410b9228803fa3f6b6
9. 0x08486a37106d9213287104b5238fc2c8da39146ef3b4477fd9d43185b68b4ee0
10. 0x438631e7421eacf3402556d871e592ffc7af75fef2b0709de48c3ef78e8d7fac
11. 0x014e6ac2bd09cb47ef261fa8d56392362b98c9b103bb1037674237d3604f081f
12. 0x31b890f57b06aeb1ca9fb0cdc688bb75678ab9b2ff8ba49765e3d7bc0ae98597
13. 0x8ba3430866b4c11cea7eba9923ee4fa8a5074849df417006e4441426c1f13056
14. 0x5cdeb4648502e0633d01cc4f3379d48cccb9d4f528565b2868eb93db0df9e829
15. 0x7726154b91b2ad65b13849ef6cb6443b1f0ff113a3089c9bd5f2bcfc16be099d
16. 0x47b89901b0f07938a6b9a66ddf35683903f79d756a7c7763665fd632758b08d0
17. 0x9a83be955a206deb65b995adfd92c58fa31c95fbbf926bd199d300e70b08b26d
18. 0x20704208aa6923d6b2450ef74ede87a6e0265d46447926038fe9506e9e154b2d
19. 0x9b9ce5b74b9bab5121612ef6b64920a8d453cbf311096a423eef9702747e868a

Day root

0xf43e8dcc3d451a4788b26be904c55e8c4c0fa75c9666796c51db38d37e2c0df8

Chained

0x702d5ac508f08b0d1accf36af25822d8e5660367494edd17a642fb61e158a57a

Published

On Arc Testnet, block 69251483: 0x495162f8936e19f0039918feebe6c307f327cd6bf8c37219620b1970041fa9ae