Evidence row 1537540

What was observed

{
  "endpoints": [
    [
      "mcp",
      "https://gateway.pipeworx.io/data-calgary/mcp"
    ],
    [
      "web",
      "https://pipeworx.io/packs/data-calgary"
    ]
  ],
  "name": "Data Calgary",
  "owner_address": null,
  "raw": {
    "_meta": {
      "io.modelcontextprotocol.registry/official": {
        "isLatest": true,
        "publishedAt": "2026-10-31T20:54:17.418768Z",
        "status": "active",
        "statusChangedAt": "2026-10-31T20:54:17.418768Z",
        "updatedAt": "2026-10-31T20:54:17.418768Z"
      }
    },
    "server": {
      "$schema": "https://static.modelcontextprotocol.io/schemas/2025-12-11/server.schema.json",
      "description": "DataCalgary MCP — Calgary open data (data.calgary.ca, Socrata SODA API).",
      "name": "io.github.pipeworx-io/data-calgary",
      "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-calgary",
          "registryType": "npm",
          "transport": {
            "type": "stdio"
          },
          "version": "0.2.1"
        }
      ],
      "remotes": [
        {
          "type": "streamable-http",
          "url": "https://gateway.pipeworx.io/data-calgary/mcp"
        }
      ],
      "repository": {
        "source": "github",
        "url": "https://github.com/pipeworx-io/mcp-data-calgary"
      },
      "title": "Data Calgary",
      "version": "0.2.1",
      "websiteUrl": "https://pipeworx.io/packs/data-calgary"
    }
  },
  "source": "mcp_registry",
  "summary": "DataCalgary MCP — Calgary open data (data.calgary.ca, Socrata SODA API)."
}

What the leaf hashes

{"body":"4edeedaf5c60ee83beca84844fa070d6867c7029fcdfa1b2aa19a8617ddaa398","id":1537540,"kind":"listing","method":"sync.mcp_registry/1","observed_us":1793481415158315,"prev":989554,"subject":"mcp_registry:io.github.pipeworx-io/data-calgary","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. 0xca46f14ff655461f7d73482314a27c73fa6334107768391ae5707769f8ae5c03
2. 0xab9177fcdaed7f8d332195a2b0be51362d5ce14608ebb4d0b1aa760f01374cd1
3. 0x86d5caf19771b8ef5dfe546e6ffa83ad70408bb11d6b18c21422aa96f373dcc3
4. 0x2f86c4389206412afbbbde561a6c142e1c5027381a35f1d334d94278616c8c5e
5. 0xfdd2554d9c137448435c3b32f04f87555f8b862020e1a10bc086fb4153fb8191
6. 0x2b4e1b91f797d9d6fc7b1853f81479e95561b68dec257acad84a406b17b081cc
7. 0x93707761b493df8edd5721d992e1d11da9d0482528c364bacedf57087795d9b4
8. 0xbb078a601f37137beb04e8dcfec38c342acc7668fe576b0d59af086cdabcc988
9. 0xc97132afc3906f92d7e19b4029aabd446197eae70ba60b06bb27e95892a5b445
10. 0x5c18899a0a932422388777952587fe574296dd8dfe50f5f0ffde843c9e4a49d6
11. 0xb17a403877dcdc345ee81cf1442485e3669e95c38222898256ba5deb61606e50
12. 0x9848da3b6eec1297925b29887f5848a0e34a120f4f695768d01669f03318e24c
13. 0xe0d6e3ecef4b18411e0b397b43270df35fb812a3310b2887db923fb26c7ba65e
14. 0x9b9c034ab0236a2e232e78d82d298819198dd0da36f638cae5260bb378f14798
15. 0xdd44ee37f508e0be8213cd488d246afd8e10e6e73374cc6074077c37270cda1e
16. 0x2e1cd25ce4079da9bfa6219d7ffec992149add4cd7d5c5b2cfee9908c1c8a5dd
17. 0x50003b3c3045b653f8be4232e95e80582cf5c54c14c509ba0a9a197b9e5005cb
18. 0x0504a25438f3c7932125463198ca74c5064f23f71a5c92763b3fc96a98cc8b57

Day root

0x24463725d1c0d9894bd6123691d532547aaa79f0762c0e45aa6a68acf1fd71ab

Chained

0x7d4824ff313dee7252a46f9d5c37b452851deb6c9f24a40c2f74ee0e53c82980

Published

On Arc Testnet, block 70093156: 0xedb7b832f4ebf6781b5ecd2ed241c435b862f4d3761541fa31adc1831b8c44a0