Evidence row 993166

What was observed

{
  "endpoints": [
    [
      "mcp",
      "https://gateway.pipeworx.io/epa-regulations/mcp"
    ],
    [
      "web",
      "https://pipeworx.io/packs/epa-regulations"
    ]
  ],
  "name": "Epa Regulations",
  "owner_address": null,
  "raw": {
    "_meta": {
      "io.modelcontextprotocol.registry/official": {
        "isLatest": true,
        "publishedAt": "2026-10-29T03:16:17.245136Z",
        "status": "active",
        "statusChangedAt": "2026-10-29T03:16:17.245136Z",
        "updatedAt": "2026-10-29T03:16:17.245136Z"
      }
    },
    "server": {
      "$schema": "https://static.modelcontextprotocol.io/schemas/2025-12-11/server.schema.json",
      "description": "EPA Regulations MCP — US Environmental Protection Agency regulations (40 CFR).",
      "name": "io.github.pipeworx-io/epa-regulations",
      "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-epa-regulations",
          "registryType": "npm",
          "transport": {
            "type": "stdio"
          },
          "version": "0.2.0"
        }
      ],
      "remotes": [
        {
          "type": "streamable-http",
          "url": "https://gateway.pipeworx.io/epa-regulations/mcp"
        }
      ],
      "repository": {
        "source": "github",
        "url": "https://github.com/pipeworx-io/mcp-epa-regulations"
      },
      "title": "Epa Regulations",
      "version": "0.2.0",
      "websiteUrl": "https://pipeworx.io/packs/epa-regulations"
    }
  },
  "source": "mcp_registry",
  "summary": "EPA Regulations MCP — US Environmental Protection Agency regulations (40 CFR)."
}

What the leaf hashes

{"body":"61cc6692956e3433c28928830146b370a4a46172c2014b71d149482481a51ba5","id":993166,"kind":"listing","method":"sync.mcp_registry/1","observed_us":1793247166642896,"prev":46488,"subject":"mcp_registry:io.github.pipeworx-io/epa-regulations","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. 0x3d82012936068bc310ae654a2626b31fe7df2ade18d936da22f61ab627d01759
2. 0x235a02c86101ed37821b6f301a7faa99c53ea08f09f3ac3f95e5f19c2585635b
3. 0xcae6de5e5242563bb6e844c61ccb6ceb27ca611d238ade9af22e3070ccd53e6a
4. 0x84b46cbec682372cb9ecb83133bcef6e3f3987bee339a56ecb9daeefc488a064
5. 0xb9a6c3c9ea6197b4c7f1140a33465691e364bc948aded25fec45f837fef304d9
6. 0x67f6412901750930485bfe2245613f2d6d8f72d8524589110bcbe8591285318f
7. 0x67f4beee5560851b790b711ab4bf564e145e6973c0a82a16b442e77c87bb2f8f
8. 0x02b926646f03eef08d2070bc53d53987a728b65a8a30f74ad7bfde1002db78b5
9. 0x17858a821c66c068813397f3c27a230974f8673569abd677bc2c9575bc756120
10. 0xfb03b0deeec1e0755f33a45c810ba1086fa68bf91a97d990a2dc50868286cc1f
11. 0x65387020709c1ed98655f54065605d60ea9d4b311fa99056a4ba7dd472cc315c
12. 0xc9b2281e71b9618ff588d4b1f9f066722a3518175e923005872c17568e1670ae
13. 0x1650f053e7c17563e375049a822d3f2ee03ea31ce2893a0e80a48747f738f1ca
14. 0xfd10c7ee22418679d618a048206ccbf1219e97c4af44a5180884b0b3d02c18e8
15. 0xa03bd318a195be3bd16f335c7e189443bea4f1f439087a7ac19afec9fa97f9be
16. 0x1c3764b490d23b94e5ac838c89f8d3850dedb0819196f367da2479c7a88bf2c0
17. 0xd76435ead496863d8b0bfab3434f54cd11da3c49d104fc4064b9cb3381567bbd
18. 0xd56e61af23709ed9f460471e3c08400c0142ee83e1fd9057e46350d12edf9c07

Day root

0xc050555c6b023f2aefb6536efb9f0760b92c30a0d06c572b7daf63db259ea17c

Chained

0x4cde8bae2042512e1bec11650628f0293556311cc4ea74d99ffddf02b671a7d6

Published

On Arc Testnet, block 69753317: 0x9e85c340732f416e431b111fae72f7624870125f7f379af2732eb6c2ba8cf6a1