Evidence row 1225306

What was observed

{
  "endpoints": [
    [
      "mcp",
      "https://gateway.pipeworx.io/europepmc/mcp"
    ],
    [
      "web",
      "https://pipeworx.io/packs/europepmc"
    ]
  ],
  "name": "Europepmc",
  "owner_address": null,
  "raw": {
    "_meta": {
      "io.modelcontextprotocol.registry/official": {
        "isLatest": true,
        "publishedAt": "2026-10-30T01:18:52.346649Z",
        "status": "active",
        "statusChangedAt": "2026-10-30T01:18:52.346649Z",
        "updatedAt": "2026-10-30T01:18:52.346649Z"
      }
    },
    "server": {
      "$schema": "https://static.modelcontextprotocol.io/schemas/2025-12-11/server.schema.json",
      "description": "Europe PMC MCP — biomedical literature.",
      "name": "io.github.pipeworx-io/europepmc",
      "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-europepmc",
          "registryType": "npm",
          "transport": {
            "type": "stdio"
          },
          "version": "0.2.1"
        }
      ],
      "remotes": [
        {
          "type": "streamable-http",
          "url": "https://gateway.pipeworx.io/europepmc/mcp"
        }
      ],
      "repository": {
        "source": "github",
        "url": "https://github.com/pipeworx-io/mcp-europepmc"
      },
      "title": "Europepmc",
      "version": "0.2.1",
      "websiteUrl": "https://pipeworx.io/packs/europepmc"
    }
  },
  "source": "mcp_registry",
  "summary": "Europe PMC MCP — biomedical literature."
}

What the leaf hashes

{"body":"f7d514595a1c6945c78f1d4ff67d1c9e08010ad83aa4953a7547f19b744038aa","id":1225306,"kind":"listing","method":"sync.mcp_registry/1","observed_us":1793326490213839,"prev":46513,"subject":"mcp_registry:io.github.pipeworx-io/europepmc","subject_kind":"source_record"}

Proof

Fold these into the leaf in order, hashing each sorted pair with keccak256, to reach the root of 2026-10-30 (243099 rows).

1. 0x9d69a533356beee66ee80f4e2cf98e8ea65af588ab003f4e11fe2c9bc66c649a
2. 0xd7372f7e0700d592a0b3b5ab261a25aaf5e5e42bbbb8df53e7ec699863b63fdf
3. 0x4066483fdc852b838bad63c725a3c030ddab220b4b0d8ac1901f81cb62dcedbf
4. 0xb26ffa54ebe080c3415d8382e3576e96007ad014de74b580a5e235955e92b963
5. 0xdf031462717d08183d66c78af9aaf69f187ff676ab3bc60d950ccdf72de5940e
6. 0x733a0e9e0d54b2f73d7c8bf2770d99aa50c97d1c658133de1bbdf41112e207c5
7. 0xf489e4fde8de716356ab2663b021ced939a1404d945b049efdbcdcc7bbee2110
8. 0xa41b614614d8a5ba22c9dd4ccf99c9b381132676ea9fa85b4fb05a68116f9953
9. 0x867317ea8ff25ebe3c59947f3b18b89c91a62a3dddbff339952ba994387e9825
10. 0x82e22b328af00dd3bf6560aadcf5052196b47d8d5c860d8ca9883ca90af667bb
11. 0xde70a2ccaa80cc0239ec3f715e1fc13f26b5ddcfab00063a85ee6705513e5b58
12. 0xdedf30b66ee512346cf034daebce53fdbd82fa50d1fd252211d1926d97098963
13. 0xd39f7d64cb3206788e8e31ad1bab3700ff64ebd64c54c91e909d88aa713d003e
14. 0x1eeab2b7eb6c0e44e79a2d3d5d5f63d9c0f269f286347cee11c002d3e7c1c75b
15. 0x11b43ed362a2fd4976e11eceb94ee4b7edbaf6823474ee1c36489f8f0a0496c4
16. 0x835211170e79bdce1a823ec914e3532e128f77751e9074286da35091b0200284
17. 0x61ef83255d34604cb052882568ca1d1386ac3cfb8284509715bc1734cff77831
18. 0x0c43c73b62a5d49ee1444b5dc4195fc5b16b141d3f4458e2e9fbd5fd6ecb367d

Day root

0x0826c7ad6039e06a2360ca0a4a3a4fe7f2626c6dc19f71a37599386f78b39875

Chained

0x36b4c8a1063758f0b8765fa1bdf75fa92fb543cc183add3e261880ee2bd1f822

Published

On Arc Testnet, block 69923247: 0x8704744146c6967c8abc9e9a99de4db7283b29e840922ea83a69b6fe776e6861