Evidence row 1474665

What was observed

{
  "endpoints": [
    [
      "mcp",
      "https://gateway.pipeworx.io/census/mcp"
    ],
    [
      "web",
      "https://pipeworx.io/packs/census"
    ]
  ],
  "name": "Census",
  "owner_address": null,
  "raw": {
    "_meta": {
      "io.modelcontextprotocol.registry/official": {
        "isLatest": true,
        "publishedAt": "2026-10-31T01:02:27.626432Z",
        "status": "active",
        "statusChangedAt": "2026-10-31T01:02:27.626432Z",
        "updatedAt": "2026-10-31T01:02:27.626432Z"
      }
    },
    "server": {
      "$schema": "https://static.modelcontextprotocol.io/schemas/2025-12-11/server.schema.json",
      "description": "Census MCP — U.S. Census Bureau housing-relevant APIs.",
      "name": "io.github.pipeworx-io/census",
      "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-census",
          "registryType": "npm",
          "transport": {
            "type": "stdio"
          },
          "version": "0.2.1"
        }
      ],
      "remotes": [
        {
          "type": "streamable-http",
          "url": "https://gateway.pipeworx.io/census/mcp"
        }
      ],
      "repository": {
        "source": "github",
        "url": "https://github.com/pipeworx-io/mcp-census"
      },
      "title": "Census",
      "version": "0.2.1",
      "websiteUrl": "https://pipeworx.io/packs/census"
    }
  },
  "source": "mcp_registry",
  "summary": "Census MCP — U.S. Census Bureau housing-relevant APIs."
}

What the leaf hashes

{"body":"9522d7b39bf90f912afccdc536d9267eff1517de1c0d5806788d52b69eea1e70","id":1474665,"kind":"listing","method":"sync.mcp_registry/1","observed_us":1793409345055180,"prev":985745,"subject":"mcp_registry:io.github.pipeworx-io/census","subject_kind":"source_record"}

Proof

Fold these into the leaf in order, hashing each sorted pair with keccak256, to reach the root of 2026-10-31 (246033 rows).

1. 0x5319f76c73c9ab8a9d783658622d4d5e63faf38e8d69e2d544760bf3f81326e8
2. 0x0629211f9953fceaaf6326acebbf493e6701fe13f82b874e5d9dbba12d26b954
3. 0x88103d6b0791f1aa52503456c1ba3d369799f7830842c529f3c1e76e92220aff
4. 0x953f82ac048fc9dc7a1ce18d024750821459db5d0e721c641c7ae06cbb426dae
5. 0xccea596258f0ef0fe6ebb103f7e7e5c2469e77fb5d07c9697e6b898e08c55f6d
6. 0x03638a05becf852296a02c177d950df84775d969d527d8abafb5cf1e2a997bbd
7. 0x30da137498da60eac92472c68d2adac42b0273b913b42438dbc8fb204d9d6d75
8. 0xe2335ff6e6b96c82e8ab2b01827a72ef100a9496f62c2c1af1dc58446ac99798
9. 0x292d7dbf6b59974dae991f0ee20a0a510d8a06c18733a56121eb2bc08924def6
10. 0x2966a7d74e0f5c0bab7722875d3366f9044230dff4edccaaeca0adadf28ba1bf
11. 0x7c2436f8cc21502f4a348d07fbfc8ab45a269b58ef3e532063dfdb97f07429b7
12. 0xb01926e38c14ecddfefcb77ba79ec4b28f3501e3b327ebb8253f3f4e334f812f
13. 0xf3220baf23862f460ba1258a3c10efea5d98488928e1c5c78f65caedb16272da
14. 0xa61ca0b664c5ff2f545d3f92e3125f2b38c2b4e58fd9a71badfd8a85dda4c936
15. 0x37f0ccf90cd9ba8759ef0154382593820880794592760020f095a3628e43fc3f
16. 0xad4540f06e3fdfe46524d8592f8d854d4849e16217bc047eaf024f0abebe34b0
17. 0xa00a931d72706fa2402bfc9b441a12eb7c6a61ff42a542916106e3637177f101
18. 0x59f83f7228f07febe2780660e422e171b0359b8aa031ee3be07e991118130c15

Day root

0x24463725d1c0d9894bd6123691d532547aaa79f0762c0e45aa6a68acf1fd71ab

Chained

0x7d4824ff313dee7252a46f9d5c37b452851deb6c9f24a40c2f74ee0e53c82980

Published

On Arc Testnet, block 70093156: 0xedb7b832f4ebf6781b5ecd2ed241c435b862f4d3761541fa31adc1831b8c44a0