Evidence row 1000973

What was observed

{
  "endpoints": [
    [
      "mcp",
      "https://gateway.pipeworx.io/data-europa/mcp"
    ],
    [
      "web",
      "https://pipeworx.io/packs/data-europa"
    ]
  ],
  "name": "Data Europa",
  "owner_address": null,
  "raw": {
    "_meta": {
      "io.modelcontextprotocol.registry/official": {
        "isLatest": true,
        "publishedAt": "2026-10-29T05:42:39.292941Z",
        "status": "active",
        "statusChangedAt": "2026-10-29T05:42:39.292941Z",
        "updatedAt": "2026-10-29T05:42:39.292941Z"
      }
    },
    "server": {
      "$schema": "https://static.modelcontextprotocol.io/schemas/2025-12-11/server.schema.json",
      "description": "data.europa.eu MCP — EU open-data hub.",
      "name": "io.github.pipeworx-io/data-europa",
      "packages": [
        {
          "environmentVariables": [
            {
              "description": "Optional Pipeworx API key. Without it calls are anonymous and capped daily; a free key raises the cap.",
              "isSecret": true,
              "name": "PIPEWORX_API_KEY"
            }
          ],
          "identifier": "@pipeworx/mcp-data-europa",
          "registryType": "npm",
          "transport": {
            "type": "stdio"
          },
          "version": "0.2.0"
        }
      ],
      "remotes": [
        {
          "type": "streamable-http",
          "url": "https://gateway.pipeworx.io/data-europa/mcp"
        }
      ],
      "repository": {
        "source": "github",
        "url": "https://github.com/pipeworx-io/mcp-data-europa"
      },
      "title": "Data Europa",
      "version": "0.2.0",
      "websiteUrl": "https://pipeworx.io/packs/data-europa"
    }
  },
  "source": "mcp_registry",
  "summary": "data.europa.eu MCP — EU open-data hub."
}

What the leaf hashes

{"body":"e195e37ad4cc480163a14389c456dd31fa16c864d2a4df0c3e2c4de489690599","id":1000973,"kind":"listing","method":"sync.mcp_registry/1","observed_us":1793254371757094,"prev":46289,"subject":"mcp_registry:io.github.pipeworx-io/data-europa","subject_kind":"source_record"}

Proof

Fold these into the leaf in order, hashing each sorted pair with keccak256, to reach the root of 2026-10-29 (242798 rows).

1. 0xe05b6432c0f99a6ca9ee6bed9865f6e1e4410cead8e61bf42609211446eea8b8
2. 0x1212a2241aea86a7c93ba70adb83f4488ae011a19172ec61ce57e51247bcd382
3. 0xb24c9a83174f924391d2429197c704fd6adb06334be044f570f1975ef362a61f
4. 0xc06ef0d7a083b21d2e974d9b7b8ef56b7cae087d9141e7479b6ac9a7d4c2b3a7
5. 0x5a2913f50a56083ff7d23ee836ce6953ec69b3020bf5304f23d08374e2e23d0c
6. 0x406d87ed7bfd3bff76fdcee14753ce586d7a7c50d194db8d3d8600ff9de291a4
7. 0xb3c8010610121083d840c358d3422c0908608f352d4a5c39ed567cf7fde4db92
8. 0x95514d6ae5f2c85b4a24cf12e41a51d84fb324e4bb17f131a499a7be551d154a
9. 0x1ecd7fb5cb3cbac44cfe8a00871e8984af6e73d82639d93fc2b1ad7140f4ae16
10. 0xeaf8f032c70e2caed5718e418dd2f86034f4451a901d4e4612fec4df621085ee
11. 0x17888067c344707222a1a35c7975de2c75848c487d3756a917c9a45f255c01a9
12. 0x0a1e9d152c6b62d40c58741a87f85f3868a66ce64462c44c61e6461da548462a
13. 0x064aad02bfe6e55281a4da30da2a91a289f618df1d6a346db244682ddd6c8d93
14. 0xb75e183026f9112474e3710d846b63188d3bba750c3ad3feabd9a22ee7d080fc
15. 0xa7d3fa0a08edea990614977b51a6b3289c357a88d8ca06dcbfe67415a017c0e7
16. 0xa034ebc8d117fbf1ed466b70baa0478bf213b743e1a41cba1d2da7a9f310184d
17. 0x1597ec94933260048e5e583aff1ad0fd44cc49efcd0a994091ed5db4924d7b02
18. 0xe01539ac4c9f9cdf265a9e5c6d99c8da11e70ff0c7175fb23e402d33b9d79785

Day root

0xc050555c6b023f2aefb6536efb9f0760b92c30a0d06c572b7daf63db259ea17c

Chained

0x4cde8bae2042512e1bec11650628f0293556311cc4ea74d99ffddf02b671a7d6

Published

On Arc Testnet, block 69753317: 0x9e85c340732f416e431b111fae72f7624870125f7f379af2732eb6c2ba8cf6a1