Evidence row 989621

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": "2026-10-29T02:48:44.896368Z",
        "status": "active",
        "statusChangedAt": "2026-10-29T02:48:44.896368Z",
        "updatedAt": "2026-10-29T02:48:44.896368Z"
      }
    },
    "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": "0.2.0"
        }
      ],
      "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": "0.2.0",
      "websiteUrl": "https://pipeworx.io/packs/dataverse-harvard"
    }
  },
  "source": "mcp_registry",
  "summary": "Harvard Dataverse MCP."
}

What the leaf hashes

{"body":"220bbfd79ee37888a40c3f48e9c85f911a1960a3ec2260d1c7d32c75383714c0","id":989621,"kind":"listing","method":"sync.mcp_registry/1","observed_us":1793243565213113,"prev":46363,"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 2026-10-29 (242798 rows).

1. 0x0b68848965360ae3f982128ae9a0ae269a0ef55ce7cb58c1e5857243b91d9229
2. 0x6f55e94cfe7618c895ac4761f070a6939f968a991f28d58364148c07bcdc0f57
3. 0x6e248c544c802a540ff40123a8ef05b024bdae263c6d9048ee8eb457b3f52b25
4. 0x1972acf7e9c2ec5fcd579516734bf577be3fa057ebfa6ea6d8bd3590c1e223e6
5. 0x48edbd7c3288cd0686565a946836d0232972a1fffb0a2b0274ef624fc682969e
6. 0x433117794376392d900d67546f05573619210fff6ad513892afd5d457e4fc10c
7. 0x153f60ca6d0568a4332440b179c67879ce5c581d4649da42327e912352645956
8. 0x2f02a71561e5236e43f1f7da53e6ac30f5d23a9def6feaa51b790ee6a0463049
9. 0xd7f49a1959f01d78449fe2831ccbf8d291d0b9234a3c7f725b2eb4829dd1b81f
10. 0xe5a11a0f0d7baf8b2c7dc9340f8794e0fcb3ef2ab5779d5d01090ce9529bb533
11. 0x8bb9bc11ebb3b5400a605ba2b7b818b53bbe82b5c4285d58e750647d6a9f95bb
12. 0xd70ffabc966845f220f4ffe9da2b5fe7293f14527ce6bfe1529c8b693d9c6662
13. 0xa58cb939c08facf8daadd7c702887e9f9ae31a324fc3668f41d9c6ce7daafcfb
14. 0x7b3add153244183458b4331b4f226a6729ff68c345cedfa75b49586e803bf98a
15. 0x0507b989510de89f78184f7a10d971f7670a579c54df7d291a2d72f034ae74d3
16. 0xa0a7723889a4c15b3e0bec353fa8dbcaec6c71cf35bb6c346415ad3e664df6a6
17. 0xd76435ead496863d8b0bfab3434f54cd11da3c49d104fc4064b9cb3381567bbd
18. 0xd56e61af23709ed9f460471e3c08400c0142ee83e1fd9057e46350d12edf9c07

Day root

0xc050555c6b023f2aefb6536efb9f0760b92c30a0d06c572b7daf63db259ea17c

Chained

0x4cde8bae2042512e1bec11650628f0293556311cc4ea74d99ffddf02b671a7d6

Published

On Arc Testnet, block 69753317: 0x9e85c340732f416e431b111fae72f7624870125f7f379af2732eb6c2ba8cf6a1