Evidence row 997063

What was observed

{
  "endpoints": [
    [
      "mcp",
      "https://gateway.pipeworx.io/nist-standards/mcp"
    ],
    [
      "web",
      "https://pipeworx.io/packs/nist-standards"
    ]
  ],
  "name": "Nist Standards",
  "owner_address": null,
  "raw": {
    "_meta": {
      "io.modelcontextprotocol.registry/official": {
        "isLatest": true,
        "publishedAt": "2026-10-29T05:07:15.686007Z",
        "status": "active",
        "statusChangedAt": "2026-10-29T05:07:15.686007Z",
        "updatedAt": "2026-10-29T05:07:15.686007Z"
      }
    },
    "server": {
      "$schema": "https://static.modelcontextprotocol.io/schemas/2025-12-11/server.schema.json",
      "description": "NIST Standards MCP pack",
      "name": "io.github.pipeworx-io/nist-standards",
      "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-nist-standards",
          "registryType": "npm",
          "transport": {
            "type": "stdio"
          },
          "version": "0.2.0"
        }
      ],
      "remotes": [
        {
          "type": "streamable-http",
          "url": "https://gateway.pipeworx.io/nist-standards/mcp"
        }
      ],
      "repository": {
        "source": "github",
        "url": "https://github.com/pipeworx-io/mcp-nist-standards"
      },
      "title": "Nist Standards",
      "version": "0.2.0",
      "websiteUrl": "https://pipeworx.io/packs/nist-standards"
    }
  },
  "source": "mcp_registry",
  "summary": "NIST Standards MCP pack"
}

What the leaf hashes

{"body":"2139ab9a9518b35bca8050dcda1ed1f717f489fe60fd1be438723da9b9e8e4b7","id":997063,"kind":"listing","method":"sync.mcp_registry/1","observed_us":1793250769992609,"prev":738841,"subject":"mcp_registry:io.github.pipeworx-io/nist-standards","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. 0x9fa5a5046779382028b2207435b2450252858580b365b8d6a66d7e74b07d7688
2. 0xbd1de337defb11b8480034b04e279b15ab48c7707031811e7f283eec784c7590
3. 0xb63bc4bee622b616ab4c0c4aeb76cb7d91db2e3bb9cb2cf84bcf57cf8b7c27ba
4. 0x204c8745dcb8045b255060b08326714f850b8b4cb5f081bb8c9eaeb5ed9141e0
5. 0x6d3fff6331386b4631eac5fe3d28a644e6574834dff2ea37849f0f4a0943094e
6. 0x62789f3c11228faeba036c0ff1404e31bb827535ecd1f307f77c0ed03bc5e053
7. 0x3664c211363703d61d24ef195b48bff4c94796bece407633c8a5d4db472dca62
8. 0x536efd123c30aaa8dc5394d7d1a80e925a707c1909b67011a6ea69119329f777
9. 0x6b11e009808bb96dc58a27c8fcbed1ce2e1bf97df2eea48970e77c77c1c1d13b
10. 0xe42a00565ef9c14ca7ef12549e5469282d312799002ddebd8717c3a7963aa3a6
11. 0x7ee2665a3679cff540f4fe3b14f15437e4f697a5aca99003bcec6e8e87245568
12. 0x6b12e9cf27bdea025f93fa5a1ea2c8b8500bf79e5c6aee18f59b2279f0ba530e
13. 0xbb0a2c430dc54812e3f6b6c2468d5b94e0ff1143439ee40a935801628b42ca5f
14. 0x96603408ef495fb0a8106bb839ad20e6578c0c0fbded2a9b235438f5985b0f0b
15. 0x4a1f9fe26bf92c291485b5fb33b95d1917a994e417ac0526ccef55ede0a90a4c
16. 0xe38dc587bc010668982bd78025ac33d7326ffc2587f2de00e848da2718907ecf
17. 0xa1fa2e97e71ad6e802f325afd74bb7095901f2060529c9739182a1233f8804bc
18. 0xe01539ac4c9f9cdf265a9e5c6d99c8da11e70ff0c7175fb23e402d33b9d79785

Day root

0xc050555c6b023f2aefb6536efb9f0760b92c30a0d06c572b7daf63db259ea17c

Chained

0x4cde8bae2042512e1bec11650628f0293556311cc4ea74d99ffddf02b671a7d6

Published

On Arc Testnet, block 69753317: 0x9e85c340732f416e431b111fae72f7624870125f7f379af2732eb6c2ba8cf6a1