Evidence row 985745

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": "2026-10-29T02:03:46.348974Z",
        "status": "active",
        "statusChangedAt": "2026-10-29T02:03:46.348974Z",
        "updatedAt": "2026-10-29T02:03:46.348974Z"
      }
    },
    "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": "0.2.0"
        }
      ],
      "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": "0.2.0",
      "websiteUrl": "https://pipeworx.io/packs/census"
    }
  },
  "source": "mcp_registry",
  "summary": "Census MCP — U.S. Census Bureau housing-relevant APIs."
}

What the leaf hashes

{"body":"fab5da142b7fdbc8f4f1fafb04602e28298ed14f31c82c3144951de8e0e93b32","id":985745,"kind":"listing","method":"sync.mcp_registry/1","observed_us":1793239962925318,"prev":46128,"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 2026-10-29 (242798 rows).

1. 0x3b8e3e49c6d13194c9b0154f98cc8a1eb7b5e2048e358cc0a1d6df81f34350cc
2. 0x76b6800bf1e601b19618723097ac1a43cb3b0e44c851a62ab118694041df93c8
3. 0x790e45a47cdbf13d1ff1af48225c4682607fce53266e539771cb66282751eafb
4. 0x61045d28982ebe9778b69cb4fd7341f787a92d0581b3997798244e90e7656ff4
5. 0x4b5a4bc03e859c196e1fe7a5b1dd7273840f964bc4b4bef187c8638a1a256757
6. 0xc27d4c9bdbb8dd86d5351e00769638a28400a99b28e42ff9162dfd62e43faec6
7. 0x6206d750441b5abe738ce29c36bd150f7ac4321213a17387f2fb1551f33e5d3c
8. 0x215d51318dd2a41c2ad242439f51b86623fe9b30058c0c5604038a16247fdd98
9. 0x92bbb7867e50777eb13902fa9d759038c5bff210a4308d143f7bd0f7d370f7d5
10. 0x03bd32aab394f62cef03cc98ba866c46e3292ac0911fa6684787d8892c337dae
11. 0x853f103729d99836ee1ef1a02de2579a83b2aa43eb243d98905b9f47c43fa4b6
12. 0x73b0c34a2502527d8c7609c5da7a71dcb3793d6cae59114605cfdaa89bb04995
13. 0x4b7bfa7784180e2ff8d66e25e97761344643b8692c744c82acf0f77be5670a82
14. 0x14b86aca7e0af6917fa29c5b89b8f3eab1f2340a671c3d06e6ac6a34fd3a07ee
15. 0xa03bd318a195be3bd16f335c7e189443bea4f1f439087a7ac19afec9fa97f9be
16. 0x1c3764b490d23b94e5ac838c89f8d3850dedb0819196f367da2479c7a88bf2c0
17. 0xd76435ead496863d8b0bfab3434f54cd11da3c49d104fc4064b9cb3381567bbd
18. 0xd56e61af23709ed9f460471e3c08400c0142ee83e1fd9057e46350d12edf9c07

Day root

0xc050555c6b023f2aefb6536efb9f0760b92c30a0d06c572b7daf63db259ea17c

Chained

0x4cde8bae2042512e1bec11650628f0293556311cc4ea74d99ffddf02b671a7d6

Published

On Arc Testnet, block 69753317: 0x9e85c340732f416e431b111fae72f7624870125f7f379af2732eb6c2ba8cf6a1