Evidence row 1729356

What was observed

{
  "endpoints": [
    [
      "mcp",
      "https://gateway.pipeworx.io/ecfr/mcp"
    ],
    [
      "web",
      "https://pipeworx.io/packs/ecfr"
    ]
  ],
  "name": "Ecfr",
  "owner_address": null,
  "raw": {
    "_meta": {
      "io.modelcontextprotocol.registry/official": {
        "isLatest": true,
        "publishedAt": "2026-11-01T02:04:33.591079Z",
        "status": "active",
        "statusChangedAt": "2026-11-01T02:04:33.591079Z",
        "updatedAt": "2026-11-01T02:04:33.591079Z"
      }
    },
    "server": {
      "$schema": "https://static.modelcontextprotocol.io/schemas/2025-12-11/server.schema.json",
      "description": "eCFR (Electronic Code of Federal Regulations) MCP.",
      "name": "io.github.pipeworx-io/ecfr",
      "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-ecfr",
          "registryType": "npm",
          "transport": {
            "type": "stdio"
          },
          "version": "0.2.1"
        }
      ],
      "remotes": [
        {
          "type": "streamable-http",
          "url": "https://gateway.pipeworx.io/ecfr/mcp"
        }
      ],
      "repository": {
        "source": "github",
        "url": "https://github.com/pipeworx-io/mcp-ecfr"
      },
      "title": "Ecfr",
      "version": "0.2.1",
      "websiteUrl": "https://pipeworx.io/packs/ecfr"
    }
  },
  "source": "mcp_registry",
  "summary": "eCFR (Electronic Code of Federal Regulations) MCP."
}

What the leaf hashes

{"body":"a5cee27a4ba2ecc067503c9c744a4f36ef17cb1ce35c36c68855c5755157bebb","id":1729356,"kind":"listing","method":"sync.mcp_registry/1","observed_us":1793499429422816,"prev":989684,"subject":"mcp_registry:io.github.pipeworx-io/ecfr","subject_kind":"source_record"}

Proof

Fold these into the leaf in order, hashing each sorted pair with keccak256, to reach the root of 2026-11-01 (302406 rows).

1. 0x65d7bebaa6602ce018841c57451bf5c27bf2c3eeeca6129a315c0ee9250d8b4b
2. 0x2dafa37c80dd34f2fab2be6da4f6b4b43d9d49130b76ba9a3f35aef5f8fc41d4
3. 0x8cb87e3f01dee08442f5da6946582f715c7aa02336bfcab66122413a030f57ae
4. 0x2fde2ca2425c93b20d7ac7c880ab3d107b05b003d0b5f9efb3ca111da9c05f4a
5. 0xa5972161a783b2f9b577708954a93a728f27dacb03de019aac29bf7651c4f2f2
6. 0xb94c58aeac5af7da316c001672e94082bee35c5e6d229a31b3277b7eda498d07
7. 0x15f932472a7d56804e16f80329d7d490c41499979fe074750a0c0814eba62061
8. 0x651806af3fcc1714f5680b7c9916e16fd09a490d432dc805f9745229a3b07f2d
9. 0xb2410b56d6f8a1acf13b437d6cbd8a6754e0ed4c3d8ba7de1e4ecc6b824af77f
10. 0xe0fde3e0858952b62f3fa46774e38ba8685f8b01bfe426b4f1a288761999723a
11. 0x41a2797d62a78b46090b5b145e71175540ff928d4f5c46c4cb9f02124f6b4646
12. 0x5479d0928635d1e2c29333ea5f06d1b79d0f3e7c81e270ef89caed1eb06fcbb7
13. 0x4d3d9020d1e2b76c6f3e7026770b57c7f8eb1d9a7979369bb6db7c1fbe7607d4
14. 0xf2a2a0157f28bf3255c9b6847cbe675ba213d3983bbfe1c0848c216c57838e54
15. 0x7c66173839ef153f08dfd346f7ea956e9226e1b7ff05bf4c6cf27436953f336b
16. 0xc1f6e8dd182b37cbb6e04d0e69486bd40d440934f8e373b9bae8cb78de508bba
17. 0x97f6f39e601b6ef0e47b730aa0488b718c0d7882ad840342bbd7d3a705a1b3a2
18. 0x1973893697931b7512ae5dc1a3c92ef92f633ae3574dce9029a35b5e94d2d364
19. 0x3315fd2757fdd435852cc277377234a3f3909a6d2a089d0e36f6d59aacfda910

Day root

0x7fa2cba1cf3d6b35630896f5fe1a650adb307ea2c376e80a5f2d9276b7cb5ab3

Chained

0x577ff89ba012beeff3197bcff7fa86752074bdf54205a24359cc437be2a952a4

Published

On Arc Testnet, block 70262758: 0x435bc1b9331471d72e1998f2e420983b5189d4da65ffbd6f27ef40daf5e1ea90