Evidence row 3774851

What was observed

{
  "endpoints": [
    [
      "mcp",
      "https://gateway.pipeworx.io/who-euro/mcp"
    ],
    [
      "web",
      "https://pipeworx.io/packs/who-euro"
    ]
  ],
  "name": "Who Euro",
  "owner_address": null,
  "raw": {
    "_meta": {
      "io.modelcontextprotocol.registry/official": {
        "isLatest": true,
        "publishedAt": "2026-11-06T20:53:41.72112Z",
        "status": "active",
        "statusChangedAt": "2026-11-06T20:53:41.72112Z",
        "updatedAt": "2026-11-06T20:53:41.72112Z"
      }
    },
    "server": {
      "$schema": "https://static.modelcontextprotocol.io/schemas/2025-12-11/server.schema.json",
      "description": "WHO Regional Office for Europe — Data Warehouse API v5.",
      "name": "io.github.pipeworx-io/who-euro",
      "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-who-euro",
          "registryType": "npm",
          "transport": {
            "type": "stdio"
          },
          "version": "0.2.1"
        }
      ],
      "remotes": [
        {
          "type": "streamable-http",
          "url": "https://gateway.pipeworx.io/who-euro/mcp"
        }
      ],
      "repository": {
        "source": "github",
        "url": "https://github.com/pipeworx-io/mcp-who-euro"
      },
      "title": "Who Euro",
      "version": "0.2.1",
      "websiteUrl": "https://pipeworx.io/packs/who-euro"
    }
  },
  "source": "mcp_registry",
  "summary": "WHO Regional Office for Europe — Data Warehouse API v5."
}

What the leaf hashes

{"body":"8770a7d189a83079acfdbe65e9f3fc5149bcd1e8fbb1fe14c52491481e5b8089","id":3774851,"kind":"listing","method":"sync.mcp_registry/1","observed_us":1794000212468892,"prev":1005109,"subject":"mcp_registry:io.github.pipeworx-io/who-euro","subject_kind":"source_record"}

Proof

Fold these into the leaf in order, hashing each sorted pair with keccak256, to reach the root of 2026-11-06 (303443 rows).

1. 0x4e7edb15f008b5b4e535548b0dfda2493e076af5a6d65f8b63162484ff0393a5
2. 0x47482fa5e5dbefa2fbaa015f574f2896e2a638ec1bc41a046a65824939ef5e29
3. 0x3d9dd75aab9b40cf0647a2c68e589d8f20ba059a544561ce4ca5bc2b0f35448c
4. 0xa844b3f0239921e10255d0fddb1d8682a6ca2c39f41e495bf7befb838aed5531
5. 0x30276365ac7083f1a26269a4c8a4aa410d4aa10896d906d80b90fafe9c6faabe
6. 0xa8ce69a26a7a9b4af46995443d49fdb53de534c6bd17c3f0ce80c449d6ab5b26
7. 0x1f835043d23dff42e7dcdbbbf074abe739fb0867d4ba257fb572cbd8c1a9d7fa
8. 0x4894a0a9a66d59816be537a2f73a84b0e4a5fece942eb382ae1620ded79c6673
9. 0x7883806a18341cf18dbab9e9091bef5e552569e90a7d4038f420a3d53cc321ff
10. 0x494602af372d4a51cc6393964cebcaa01fa8168142ab46734e9dcea3fafa127d
11. 0xb70bed735738f9faf5fc1c770104ba5fd51b48f9e5e0ab2aa05854158c9e3d43
12. 0x5c71ca2b8268bf6224f5b97e133a0a8cfd8957eb0bb79676f93891f41ac4117f
13. 0x6d95645ac912729816a24961219b8cb36c0588e5ba4b3a6982813423dd3cbf1a
14. 0xaf9524acc11af4619d183021d0dd97b098258f9af2441d3d61343f3bbe112bb9
15. 0xa18562956ef32715be3beef73e0db96be2b79caa00a0157b81ff91d577507391
16. 0xdfedd18f60be5438b67a88cd42d31ead60bf5dbfc8d726e3d83be13474b3bd3f
17. 0x4a618d78b1cebba8beec4ef22aaac9187dcdfb39064e0be537ca2600abb90740
18. 0x119743aadcddb571b28b442b62196d4a0afc4e1c9979c2d477d34fcc9413deaf
19. 0xc0d08d48601d1be90bcfc025e66bcaa0030120d688dd9c919b36c2c4446f4948

Day root

0xb30ccefe7182c6f767e1fcbfb5f64ffd649da831f665f65c5ff39cd40512284f

Chained

0xc383f7ef68d2914082484765aa09e42c12c59a74a096ae64127c562618c506d3

Published

On Arc Testnet, block 71111178: 0xfba13cb7ee4ada7f2fee3702a786a2201596be2ffea37dfc281ab4c8e9942fe1