Evidence row 27354

What was observed

{
  "endpoints": [
    [
      "web",
      "https://lucairn.eu/developer/mcp"
    ]
  ],
  "name": "io.github.Declade/lucairn-mcp-server",
  "owner_address": null,
  "raw": {
    "_meta": {
      "io.modelcontextprotocol.registry/official": {
        "isLatest": true,
        "publishedAt": "2026-07-31T11:56:56.669441Z",
        "status": "active",
        "statusChangedAt": "2026-07-31T11:56:56.669441Z",
        "updatedAt": "2026-07-31T11:56:56.669441Z"
      }
    },
    "server": {
      "$schema": "https://static.modelcontextprotocol.io/schemas/2025-12-11/server.schema.json",
      "description": "Pseudonymizes PII before your LLM and returns a cryptographically signed receipt per response.",
      "name": "io.github.Declade/lucairn-mcp-server",
      "packages": [
        {
          "environmentVariables": [
            {
              "description": "Lucairn gateway API key (lcr_live_*). Issued at https://lucairn.eu/account/keys. Free tier requires BYOK upstream LLM keys (ANTHROPIC_API_KEY or OPENAI_API_KEY).",
              "format": "string",
              "isRequired": true,
              "isSecret": true,
              "name": "LUCAIRN_API_KEY"
            },
            {
              "description": "Upstream Anthropic API key. Used when the requested model is claude-* / anthropic-*. Required if you call Claude models on the free tier (BYOK).",
              "format": "string",
              "isSecret": true,
              "name": "ANTHROPIC_API_KEY"
            },
            {
              "description": "Upstream OpenAI API key. Used when the requested model routes to OpenAI. Required if you call OpenAI models on the free tier (BYOK).",
              "format": "string",
              "isSecret": true,
              "name": "OPENAI_API_KEY"
            },
            {
              "description": "Override the gateway URL. Defaults to https://gateway.lucairn.eu (production). Set this to point at a self-hosted Lucairn deployment.",
              "format": "string",
              "name": "LUCAIRN_BASE_URL"
            },
            {
              "description": "Transport mode for the MCP server. One of 'direct-http' (default; v1.1+ behavior) or 'stdio-bridge' (v1.2+ opt-in).",
              "format": "string",
              "name": "LUCAIRN_TRANSPORT"
            }
          ],
          "identifier": "@lucairn/mcp-server",
          "registryType": "npm",
          "transport": {
            "type": "stdio"
          },
          "version": "1.2.9"
        }
      ],
      "repository": {
        "source": "github",
        "url": "https://github.com/Declade/lucairn-sdks"
      },
      "version": "1.2.9",
      "websiteUrl": "https://lucairn.eu/developer/mcp"
    }
  },
  "source": "mcp_registry",
  "summary": "Pseudonymizes PII before your LLM and returns a cryptographically signed receipt per response."
}

What the leaf hashes

{"body":"5ce10d7fb066666de3a9fbfdf1f8a952a5d98f66b8b89a0da8d9abab5ced0cff","id":27354,"kind":"listing","method":"baseline/1","observed_us":1793025357369661,"prev":null,"subject":"mcp_registry:io.github.Declade/lucairn-mcp-server","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. 0xfb74b0528eb885f50327171f35020d45cf67f69f39f79b333f2358692fc7d92f
2. 0x6699ee3b937e2dc2f82d659fcd1238b8a2afb650bd7065ce8576323aa24a5a69
3. 0xfb92343163f0c51b7f43ff4041ab05f20f62c44775912a0ead622d6cc3e7fed1
4. 0x97a46308cc0d5c8ad6299cb9ec549a150cdb0eefdffe5060620affac8ad22e30
5. 0x057aba118a9677b1ae5fa4faba37d93f61b4f68c6cdd5e0174ab69892681129a
6. 0x2baa0ab0ed8bea69e1e55ed868a4e47f30e047bbe023d8ef9850f9004650926d
7. 0x6c04ef9892b980431243e8a02be0d5bc674e8eb3a3aae4ba8a043b3763d69ca9
8. 0xcffb39c03f73dfe55fddcfdf96570d543197127162d284bc95216f21cc1042c2
9. 0x395a13a3442e9661e635085a1cd2cefe834428265c3f55a1ecf5d8707fc47162
10. 0x5a686e4901521125a8b452665ac2984aa9cdf4a4bb0c87e06113a6fe84429ad2
11. 0xcf10f42f956ec0f58e8d60fb00e23c6415064b00d70e8566efe0f1b98e7e1d0a
12. 0xf8173f36b7a27e1bb0f6961a49501bba1d99349c5e11449d0d557fbaa910be0a
13. 0xbee644d57738676bfb20eb90d6021f364bf883a8d54f8d17e9dc4749b4074c3d
14. 0x44945ea9ad8b24e723ad5a8fd6d014024a49531783f74ff9229c2ab6930e84c8
15. 0x68d296b1e00b4899fb83c3fba36fffaefa311eac2903067dbebfe776a12b4a9a
16. 0x5fb5dda563336cd1bc1b9f44c52b76237ae72ed2145cb9290f39f304ca7dd678
17. 0x74a0a08e4e7ab9aa5bfbead33dec7e1c7e8e364cff69a63720d764bbe987aadc

Day root

0xf43e8dcc3d451a4788b26be904c55e8c4c0fa75c9666796c51db38d37e2c0df8

Chained

0x702d5ac508f08b0d1accf36af25822d8e5660367494edd17a642fb61e158a57a

Published

On Arc Testnet, block 69251483: 0x495162f8936e19f0039918feebe6c307f327cd6bf8c37219620b1970041fa9ae