Evidence row 1537630

What was observed

{
  "endpoints": [
    [
      "mcp",
      "https://gateway.pipeworx.io/dataverse-harvard/mcp"
    ],
    [
      "web",
      "https://pipeworx.io/packs/dataverse-harvard"
    ]
  ],
  "name": "Dataverse Harvard",
  "owner_address": null,
  "raw": {
    "_meta": {
      "io.modelcontextprotocol.registry/official": {
        "isLatest": true,
        "publishedAt": "2026-10-31T21:08:48.357249Z",
        "status": "active",
        "statusChangedAt": "2026-10-31T21:08:48.357249Z",
        "updatedAt": "2026-10-31T21:08:48.357249Z"
      }
    },
    "server": {
      "$schema": "https://static.modelcontextprotocol.io/schemas/2025-12-11/server.schema.json",
      "description": "Harvard Dataverse MCP.",
      "name": "io.github.pipeworx-io/dataverse-harvard",
      "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-dataverse-harvard",
          "registryType": "npm",
          "transport": {
            "type": "stdio"
          },
          "version": "0.2.1"
        }
      ],
      "remotes": [
        {
          "type": "streamable-http",
          "url": "https://gateway.pipeworx.io/dataverse-harvard/mcp"
        }
      ],
      "repository": {
        "source": "github",
        "url": "https://github.com/pipeworx-io/mcp-dataverse-harvard"
      },
      "title": "Dataverse Harvard",
      "version": "0.2.1",
      "websiteUrl": "https://pipeworx.io/packs/dataverse-harvard"
    }
  },
  "source": "mcp_registry",
  "summary": "Harvard Dataverse MCP."
}

What the leaf hashes

{"body":"add9d281b249904a7bc45b374a7dfb0c4c5cbda4995c850f0bb117654823161d","id":1537630,"kind":"listing","method":"sync.mcp_registry/1","observed_us":1793481415978268,"prev":989621,"subject":"mcp_registry:io.github.pipeworx-io/dataverse-harvard","subject_kind":"source_record"}

Proof

Fold these into the leaf in order, hashing each sorted pair with keccak256, to reach the root of 2026-10-31 (246033 rows).

1. 0xaee14419664ef0fb404edb00bdbc7ca8cf3ea13489643fee8280b4a3c9d9661a
2. 0x9d581f7053cf75ac83bf87251c3cd76d42c626bbda21e84ff1d82f999fe2c027
3. 0x1723e6f041a965aa7f7d58bf7c7e5ab1a0969dcd1c1f864b9717884429fec8e5
4. 0x5873624ff103f56ec120e01d4f67a5aef3610edfeb6ba8e8582b443cbe5aca7e
5. 0x3ebcf59f319a072dc92584a0c4096bee58cc67a6aa4dfa793cd0330f094db9db
6. 0x80769fe56068aac5e90267c15c8c1543b411739efff2b9892195e58b0050b9f8
7. 0xdbbb834b433a2fd35302788d01dbc9e3a54c8150cb40892feead93c2a7584b63
8. 0x3af9017ec5a951fad6bd7ca8e0c2abf79098b1bf491f6eae6e15d2c337e4bc9b
9. 0x14912e176e72f71bd6040aa7ef32f35fe22917a82dd6bbda280a2c941559efc9
10. 0xc03d102f4c833be1dc59acfed10a0ab8912a4af795a6829c412600bf521932e9
11. 0xc1b86bd091d6fd74d4ebd4eabdd8175d4f37b6001507d5783cf126a8d1c3a586
12. 0x99f245416ba879dd122979c99f59a2cee6bfded7eb430c11db2c1e2b31382629
13. 0xb09440bf6646ff777d33f0f00bc9aa431a06af5faf5954642c917acff5aa3d78
14. 0x17b4d08af91ab833713ac6154ec68f498dbe032401780285c2ccdadad6ac27f1
15. 0x57afe240b626bf60f6af8c76404811e95ea5519f217fac382bd159177a8ec870
16. 0x2e1cd25ce4079da9bfa6219d7ffec992149add4cd7d5c5b2cfee9908c1c8a5dd
17. 0x50003b3c3045b653f8be4232e95e80582cf5c54c14c509ba0a9a197b9e5005cb
18. 0x0504a25438f3c7932125463198ca74c5064f23f71a5c92763b3fc96a98cc8b57

Day root

0x24463725d1c0d9894bd6123691d532547aaa79f0762c0e45aa6a68acf1fd71ab

Chained

0x7d4824ff313dee7252a46f9d5c37b452851deb6c9f24a40c2f74ee0e53c82980

Published

On Arc Testnet, block 70093156: 0xedb7b832f4ebf6781b5ecd2ed241c435b862f4d3761541fa31adc1831b8c44a0