Evidence row 985706

What was observed

{
  "endpoints": [
    [
      "mcp",
      "https://gateway.pipeworx.io/boston-calendar/mcp"
    ],
    [
      "web",
      "https://pipeworx.io/packs/boston-calendar"
    ]
  ],
  "name": "Boston Calendar",
  "owner_address": null,
  "raw": {
    "_meta": {
      "io.modelcontextprotocol.registry/official": {
        "isLatest": true,
        "publishedAt": "2026-10-29T01:54:30.843309Z",
        "status": "active",
        "statusChangedAt": "2026-10-29T01:54:30.843309Z",
        "updatedAt": "2026-10-29T01:54:30.843309Z"
      }
    },
    "server": {
      "$schema": "https://static.modelcontextprotocol.io/schemas/2025-12-11/server.schema.json",
      "description": "The Boston Calendar MCP.",
      "name": "io.github.pipeworx-io/boston-calendar",
      "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-boston-calendar",
          "registryType": "npm",
          "transport": {
            "type": "stdio"
          },
          "version": "0.2.0"
        }
      ],
      "remotes": [
        {
          "type": "streamable-http",
          "url": "https://gateway.pipeworx.io/boston-calendar/mcp"
        }
      ],
      "repository": {
        "source": "github",
        "url": "https://github.com/pipeworx-io/mcp-boston-calendar"
      },
      "title": "Boston Calendar",
      "version": "0.2.0",
      "websiteUrl": "https://pipeworx.io/packs/boston-calendar"
    }
  },
  "source": "mcp_registry",
  "summary": "The Boston Calendar MCP."
}

What the leaf hashes

{"body":"4a07bdb7fe5f5593883e0ecd7bbbd0b5bd36582c19a4bfb982dabdf6e45e1a3d","id":985706,"kind":"listing","method":"sync.mcp_registry/1","observed_us":1793239962835841,"prev":46071,"subject":"mcp_registry:io.github.pipeworx-io/boston-calendar","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. 0x38444cbabd610c5a036cdb13174aa2ffd215911d3de84e307d3c45a2f907da19
2. 0x1aec8ca06817d9bc1a072e78b78eaca23380641be37d35b956fdfc9c8d81b979
3. 0xeb3505c51873fbdc26f6cf39afe91864572ab85bda9eec4be907ba344ca5c053
4. 0x7cfd83a9e422d1c1ce82916dbf1dc54b4a0be42cd04ff1af2880279a1a86e2e9
5. 0xf2c727550b7680cb3fcbbdc549c559410a585cf4f7f9d447959c00c4db74a431
6. 0xf84880abb0ab8e969d234cf7852975c03d6b6488c4b4659f6db43c89faa4e6d2
7. 0xc56ad5fbee8a2ffbf7f7ec216892c4471c1b9489789258f83700f2d019b3cb70
8. 0x93168cf232342b3c991f58f0a004956c62c069025946b44393bdb3863d152c6d
9. 0x5028581f917daba6c41efa68bdfa87fc80f90c08c2d246ad64f33c3c5f09b9cc
10. 0xc24400aacbb6093b17f85e6bf3ca3760f72b8250ea60d938aa5798b539086f29
11. 0x0a9f6ee1d60e16f1b3ac9c020d7cdfa4bc33c2f0841c932f14e69a27093a7083
12. 0x323c003b20088ff5fc994bd02dcef5bb060fb6e3c817a34b4c86849e5240cf52
13. 0x4b7bfa7784180e2ff8d66e25e97761344643b8692c744c82acf0f77be5670a82
14. 0x14b86aca7e0af6917fa29c5b89b8f3eab1f2340a671c3d06e6ac6a34fd3a07ee
15. 0xa03bd318a195be3bd16f335c7e189443bea4f1f439087a7ac19afec9fa97f9be
16. 0x1c3764b490d23b94e5ac838c89f8d3850dedb0819196f367da2479c7a88bf2c0
17. 0xd76435ead496863d8b0bfab3434f54cd11da3c49d104fc4064b9cb3381567bbd
18. 0xd56e61af23709ed9f460471e3c08400c0142ee83e1fd9057e46350d12edf9c07

Day root

0xc050555c6b023f2aefb6536efb9f0760b92c30a0d06c572b7daf63db259ea17c

Chained

0x4cde8bae2042512e1bec11650628f0293556311cc4ea74d99ffddf02b671a7d6

Published

On Arc Testnet, block 69753317: 0x9e85c340732f416e431b111fae72f7624870125f7f379af2732eb6c2ba8cf6a1