Evidence row 1537538

What was observed

{
  "endpoints": [
    [
      "mcp",
      "https://gateway.pipeworx.io/data-boston/mcp"
    ],
    [
      "web",
      "https://pipeworx.io/packs/data-boston"
    ]
  ],
  "name": "Data Boston",
  "owner_address": null,
  "raw": {
    "_meta": {
      "io.modelcontextprotocol.registry/official": {
        "isLatest": true,
        "publishedAt": "2026-10-31T20:51:39.673147Z",
        "status": "active",
        "statusChangedAt": "2026-10-31T20:51:39.673147Z",
        "updatedAt": "2026-10-31T20:51:39.673147Z"
      }
    },
    "server": {
      "$schema": "https://static.modelcontextprotocol.io/schemas/2025-12-11/server.schema.json",
      "description": "DataBoston MCP — City of Boston open data (data.boston.gov, CKAN API).",
      "name": "io.github.pipeworx-io/data-boston",
      "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-data-boston",
          "registryType": "npm",
          "transport": {
            "type": "stdio"
          },
          "version": "0.2.2"
        }
      ],
      "remotes": [
        {
          "type": "streamable-http",
          "url": "https://gateway.pipeworx.io/data-boston/mcp"
        }
      ],
      "repository": {
        "source": "github",
        "url": "https://github.com/pipeworx-io/mcp-data-boston"
      },
      "title": "Data Boston",
      "version": "0.2.2",
      "websiteUrl": "https://pipeworx.io/packs/data-boston"
    }
  },
  "source": "mcp_registry",
  "summary": "DataBoston MCP — City of Boston open data (data.boston.gov, CKAN API)."
}

What the leaf hashes

{"body":"10f28aa5e32956470a8cfabd82081905a55c40924d7b23bdf64a58c490e5b6e1","id":1537538,"kind":"listing","method":"sync.mcp_registry/1","observed_us":1793481415151965,"prev":1225297,"subject":"mcp_registry:io.github.pipeworx-io/data-boston","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. 0x75a511a8d6764beb4dac8968e43876fdd8f2b06245fdeee7a6915c5de3ef2c32
2. 0x54d957ff27617bbdb0d7d379b972cf4ec86acbd0dc605a9eb33636bc4ed5924a
3. 0x1b316905ebfe93d0bcbe7a6d3402879c4025574c4074c8dcd958272e8904e2c2
4. 0xcb1b6bff46a73dc006aa7d39ff9ebe3612a3079a9371395031ebdc0594166640
5. 0xd949bac1b374b5f75f215d1723330e995f3cdc3dac7ef1a4d2ecaa5aa953c7e3
6. 0x922542dd2c17fff3b7081c2990b726bbe8b88a13f01df5ffdcc1abd4b9683e80
7. 0x9e0bafd72b7ea0908f2f3e0f3ce59d8d180b86b4e8fecd60ff6e0aa0ca31ded3
8. 0x792b58911e7125f32e8d9046aa463052c6d3f7a601e63894ced5044b72478d4c
9. 0x5308e08eb5ff42a5e85a7de5aa2d793e8b6c3956a513f3661c4d8b8f819b27ba
10. 0x78a54e97e0da1d9c980fbcc755d5f3769374eaa5f05a87ed897b0142d2eae18e
11. 0x0bcaecfc8a073ee75c4969022a8fe8a3e005dc5f1bfd784c509b0fe6764084b7
12. 0xbb0395dbc0c03d70156bada5bbe4138a6a061a440cb8ced1ced624a1d0bd9439
13. 0xcd5e7734bd8848fcbd68ddd77d7fb326e0e8f4beccfaf7423728dad7030eeb6f
14. 0x41e1f7c43ac5b235ed2b70fcc7418dedf8f488e17dfa6d5347558c4b213497ea
15. 0xda82240eda32eeb01478d5898342fa15b35b5682549347c7a22660b37913617f
16. 0x919f237dec4df392868ab95f1d4300b185479ae64464cbc2e7385ad1fd6ab390
17. 0xa00a931d72706fa2402bfc9b441a12eb7c6a61ff42a542916106e3637177f101
18. 0x59f83f7228f07febe2780660e422e171b0359b8aa031ee3be07e991118130c15

Day root

0x24463725d1c0d9894bd6123691d532547aaa79f0762c0e45aa6a68acf1fd71ab

Chained

0x7d4824ff313dee7252a46f9d5c37b452851deb6c9f24a40c2f74ee0e53c82980

Published

On Arc Testnet, block 70093156: 0xedb7b832f4ebf6781b5ecd2ed241c435b862f4d3761541fa31adc1831b8c44a0