Evidence row 2504997

What was observed

{
  "endpoints": [
    [
      "mcp",
      "https://gateway.pipeworx.io/nber-macrohistory/mcp"
    ],
    [
      "web",
      "https://pipeworx.io/packs/nber-macrohistory"
    ]
  ],
  "name": "Nber Macrohistory",
  "owner_address": null,
  "raw": {
    "_meta": {
      "io.modelcontextprotocol.registry/official": {
        "isLatest": true,
        "publishedAt": "2026-11-03T02:09:26.629635Z",
        "status": "active",
        "statusChangedAt": "2026-11-03T02:09:26.629635Z",
        "updatedAt": "2026-11-03T02:09:26.629635Z"
      }
    },
    "server": {
      "$schema": "https://static.modelcontextprotocol.io/schemas/2025-12-11/server.schema.json",
      "description": "NBER Macrohistory Database — the National Bureau of Economic Research's 'Public Use Data Archive'…",
      "name": "io.github.pipeworx-io/nber-macrohistory",
      "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-nber-macrohistory",
          "registryType": "npm",
          "transport": {
            "type": "stdio"
          },
          "version": "0.2.1"
        }
      ],
      "remotes": [
        {
          "type": "streamable-http",
          "url": "https://gateway.pipeworx.io/nber-macrohistory/mcp"
        }
      ],
      "repository": {
        "source": "github",
        "url": "https://github.com/pipeworx-io/mcp-nber-macrohistory"
      },
      "title": "Nber Macrohistory",
      "version": "0.2.1",
      "websiteUrl": "https://pipeworx.io/packs/nber-macrohistory"
    }
  },
  "source": "mcp_registry",
  "summary": "NBER Macrohistory Database — the National Bureau of Economic Research's 'Public Use Data Archive'…"
}

What the leaf hashes

{"body":"1c915c7fddd1d54a8e17b1a28e84fa4ee0f4cbc33de467cbba03b634016cff2d","id":2504997,"kind":"listing","method":"sync.mcp_registry/1","observed_us":1793672337313441,"prev":997037,"subject":"mcp_registry:io.github.pipeworx-io/nber-macrohistory","subject_kind":"source_record"}

Proof

Fold these into the leaf in order, hashing each sorted pair with keccak256, to reach the root of 2026-11-03 (425475 rows).

1. 0xd760ed419061c718770dea7fc58c8f802e35b1ec89b4ef71bd868e5f6cce7bc2
2. 0xd02480afe35c5528e3948d67c4ddd70ad7becb87f1f77a260a1ef9fc88027475
3. 0x527dd37f7573b290f6f29b2e370207c0194e938d67e66ce699f0ce7491a66f91
4. 0xcef6294a174469cbfeb90b1cd542e41262dd0d1ce72ce5fe1957115c228368cc
5. 0x006121bee6defdd429c77eeb8df85b69627be2d614539b8ddc6581977f71b588
6. 0x9f68594b2cb8dacc59087dbbef7e20ce183df1ecc8c3ab8361717dc0c1cfed55
7. 0x5d6b014ecb13a6252ef9b893c5d504096b9b6f2c0566716f42091b1daa7da8c3
8. 0x6ca9fc029d1be2f8f00e767d8d8e7ae6a1a9845b6d0f83fdc7dafd12de2bb4ab
9. 0x140d689179f08bd57095313841bd00d813eed2e52731ff4f6a89f5af72654d09
10. 0x30e0e57e1d11cf057432d9daa949a19c8a6af535fec64568555a1959215acae5
11. 0xa0b60a6d492f839d158308bf9e81d7d8c8316537d64a97c35de84e2d4a2961c0
12. 0x90e3c26509e352ac83f38d5549cd92bfadc61435ee9dedd0267ec700865ebb58
13. 0xa8db70345e2bde6cfa8286548a731de586d8c60112c85b9b953c4639273fb111
14. 0x18c35417f7b285121a68d43297e370931a92ea9fb5a8410afcf7e021d5ec8b7e
15. 0xc7478839685fed152a1d3420a50281ec80c2c7dad556230418f148fc7a02f71c
16. 0x59b3a6fae1c920f45b1445649e93c8c7d68f3f69789b0df88522cdb15a28590b
17. 0x7075a090980aecb33e9c15c829cb40f5b44385b6d91a159042263db068126b87
18. 0xac5402954216dc6c7020a6405675c8fc3b0828c2ab02943d80de52677a2f1fc3
19. 0x85f3a27c16056a361d9ba33355a575ca7123f86de901b204c88953c4b8ea441a

Day root

0xb646ffa569e24bf8336b0a15a9d98d0a2f1239f58e10c2b18a9d22e43343566a

Chained

0x35e926359fd19031c6b5e08fb3b44f2524386a57c8fdd353336c185603f53d43

Published

On Arc Testnet, block 70601990: 0xa5f9dadba13cde129126b950e64b815e6833cb8ff53b75026c9dbe769c3768c7