Evidence row 989684

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": "2026-10-29T03:08:23.412597Z",
        "status": "active",
        "statusChangedAt": "2026-10-29T03:08:23.412597Z",
        "updatedAt": "2026-10-29T03:08:23.412597Z"
      }
    },
    "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": "0.2.0"
        }
      ],
      "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": "0.2.0",
      "websiteUrl": "https://pipeworx.io/packs/ecfr"
    }
  },
  "source": "mcp_registry",
  "summary": "eCFR (Electronic Code of Federal Regulations) MCP."
}

What the leaf hashes

{"body":"e874387d1dcdfb5f06ef3109aa102aa052f25a51eb10bad7c77450bdadb7f48c","id":989684,"kind":"listing","method":"sync.mcp_registry/1","observed_us":1793243565361557,"prev":46445,"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 2026-10-29 (242798 rows).

1. 0x9074b6658b11298bf8c89a81ac3ba4480eb3456b41d8d3036e9457c1a7365d33
2. 0x8fe9626fc5af514bfe675b70c10d84f23d56c182f1480e791dfbb9fce044eb3d
3. 0x26e87424fb79452adef6f2ac8b45297c2f80729ca2957f2a55fe3a4ab2681808
4. 0xe2ca4f7c5fd6ec0062b129f9e7ee51d530112f7ff86d925632723c14f0090e34
5. 0x81d44e1506f3d69940b36eaead86ec5ae8624eb61d89d3654797acf7014e1193
6. 0x74f4824260c307c39c3e2118e743d2d78f3a3167d8c7e4e5fb41544992f84a1e
7. 0xf79d9c6900ae7cc6cc73dbe3e7f87ec0a6e48f9cb33379e14e4477fda8e79383
8. 0x7426faf84e5cf73c8fc3a25b21d8f666d97e2fc670fdb7297c683776981c6fb6
9. 0xb1a6b0410270db7785893004bf0b1b306c57fa8687f5ff0cdbd53f4fc44ca476
10. 0xca6e83993d48f44d24f204f02eabaf6c04d8d37a6bffaf0ff4ff06a76155b1c5
11. 0x2f386b23f0516f5c4d83a4da418ba06fbc5d5d270fd1e0d9a30d7e42cb5d7c7a
12. 0x924a97a5d68012ac776583a7dc748c3226aabfbbbb479e996042842cb6f43fc3
13. 0x834e0aae5de1c77f23e901b21cc37833f72279146f0a5e458548b82d6bed2b7a
14. 0x2ec9677def553f2064a7e34081a129a91f7999a429ef2705c4c539a9602f3bbf
15. 0x09d5ec1c01b0f087fe9f6cc95432188552da9adc88004aed57401ea49f2b56d4
16. 0xe38dc587bc010668982bd78025ac33d7326ffc2587f2de00e848da2718907ecf
17. 0xa1fa2e97e71ad6e802f325afd74bb7095901f2060529c9739182a1233f8804bc
18. 0xe01539ac4c9f9cdf265a9e5c6d99c8da11e70ff0c7175fb23e402d33b9d79785

Day root

0xc050555c6b023f2aefb6536efb9f0760b92c30a0d06c572b7daf63db259ea17c

Chained

0x4cde8bae2042512e1bec11650628f0293556311cc4ea74d99ffddf02b671a7d6

Published

On Arc Testnet, block 69753317: 0x9e85c340732f416e431b111fae72f7624870125f7f379af2732eb6c2ba8cf6a1