Evidence row 3131423

What was observed

{
  "endpoints": [
    [
      "mcp",
      "https://gateway.pipeworx.io/pubmed/mcp"
    ],
    [
      "web",
      "https://pipeworx.io/packs/pubmed"
    ]
  ],
  "name": "Pubmed",
  "owner_address": null,
  "raw": {
    "_meta": {
      "io.modelcontextprotocol.registry/official": {
        "isLatest": true,
        "publishedAt": "2026-11-04T21:03:21.985332Z",
        "status": "active",
        "statusChangedAt": "2026-11-04T21:03:21.985332Z",
        "updatedAt": "2026-11-04T21:03:21.985332Z"
      }
    },
    "server": {
      "$schema": "https://static.modelcontextprotocol.io/schemas/2025-12-11/server.schema.json",
      "description": "PubMed MCP — wraps the NCBI E-utilities API (biomedical literature, free, no auth)",
      "name": "io.github.pipeworx-io/pubmed",
      "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-pubmed",
          "registryType": "npm",
          "transport": {
            "type": "stdio"
          },
          "version": "1.2.1"
        }
      ],
      "remotes": [
        {
          "type": "streamable-http",
          "url": "https://gateway.pipeworx.io/pubmed/mcp"
        }
      ],
      "repository": {
        "source": "github",
        "url": "https://github.com/pipeworx-io/mcp-pubmed"
      },
      "title": "Pubmed",
      "version": "1.2.1",
      "websiteUrl": "https://pipeworx.io/packs/pubmed"
    }
  },
  "source": "mcp_registry",
  "summary": "PubMed MCP — wraps the NCBI E-utilities API (biomedical literature, free, no auth)"
}

What the leaf hashes

{"body":"ca3ff665c1afe7e84b37b398b95aebf2bb79b7a8e6b4ca65a3c2f247c97fc8db","id":3131423,"kind":"listing","method":"sync.mcp_registry/1","observed_us":1793827262198764,"prev":1001261,"subject":"mcp_registry:io.github.pipeworx-io/pubmed","subject_kind":"source_record"}

Proof

Fold these into the leaf in order, hashing each sorted pair with keccak256, to reach the root of 2026-11-04 (424109 rows).

1. 0x07892145587cfd4609b21f73dc39a6ee5de1bb9dc34aba247b41cc48760afd8e
2. 0xe73e05000b25e2931ed9030861e0358890e61a62ee4eaa38810b11fadd79a7ec
3. 0xe5e2cf8a0905829b034d6734b6d58ffcd07ebf724577da6d757d8d5936238976
4. 0xf068bf8384864ec6274ffeaa14db100025406476531feda4f0930c4370a9a11b
5. 0xebc3e4e1b1d272a1d9db9cd9877925a21891f219cca1abb183268352073069f9
6. 0xbb9f8a95526ef3ba7a84d362ba6da674e8540359639fed7e852449d9cb5c02af
7. 0xcfb5e8175c909b5b3f28d1c509654581f3f4aefd0c0ac0336015e50c98f36f35
8. 0x9c158df8798ca3838f2b333d443903438c4145d55f516db89ca93fe80fab13c7
9. 0x1e4342e6f626694f55c904bbb57aac19ece082bf1961dd9f0696ad105fcf87ce
10. 0x100f8bdfa8098e2c61359a98ba3e3d899382a13d9a64a99707f42ef1ec59479a
11. 0xd8eec1543d7817ed0e2982bd3d535e6c730fa0f3ec99da62279d179973a06540
12. 0xc9621d805d1e2a7d01240bd1707e5c4ac9e233738d818441e86c689b15371b5e
13. 0xe284656a9f0be097a543d51ee1f61ecff7529899f302f37ff164b86283b4e75a
14. 0x100f0c53fd119963d622a12ca44bbe30cb6c40b8715b5360425f34a4bb487b35
15. 0x25c6f3031e09eeef9fb0f5c010f6aa1605f7af5f1a8859ce4db5ae48d0598359
16. 0xcdac863807ea81d51a9ab718457637e91824fd377a06759901352d9a23933554
17. 0x01c26569ec8e231551522ab452fd5d417c3d66f29c7c76886a8ec295a18dd624
18. 0x02f64ca19e7d9b09718851d2ce3abf641982580de99411626d894607cf386cd5
19. 0x10067354f57fa0cd86b7423e67cc1c7d107d7c9c6823df5246c4fb63b60575e5

Day root

0xd4eed8c0ea3c90ec6f262b19fcc3b849f30cb82a0f84b8b89569e48af7d0c1ee

Chained

0x59305749c32724a02a23c368834d8a36ae9908da93a915e2962fffe01b4e591b

Published

On Arc Testnet, block 70772483: 0x813d56041c1efd407e56047129b597b154a1cb26458bb2768fd0a4630ac97345