Evidence row 45754

What was observed

{
  "endpoints": [
    [
      "mcp",
      "https://databutler.dev/api/mcp/calendar"
    ],
    [
      "web",
      "https://databutler.dev/api"
    ]
  ],
  "name": "io.github.physics-star-cat/databutler-calendar",
  "owner_address": null,
  "raw": {
    "_meta": {
      "io.modelcontextprotocol.registry/official": {
        "isLatest": true,
        "publishedAt": "2026-10-04T15:58:02.531626Z",
        "status": "active",
        "statusChangedAt": "2026-10-04T15:58:02.531626Z",
        "updatedAt": "2026-10-04T15:58:02.531626Z"
      }
    },
    "server": {
      "$schema": "https://static.modelcontextprotocol.io/schemas/2025-12-11/server.schema.json",
      "description": "Public holidays (UK, US, DE, FR), tax-year dates and DST switches for 2026-2028.",
      "name": "io.github.physics-star-cat/databutler-calendar",
      "remotes": [
        {
          "type": "streamable-http",
          "url": "https://databutler.dev/api/mcp/calendar"
        }
      ],
      "repository": {
        "source": "github",
        "url": "https://github.com/physics-star-cat/databutler"
      },
      "version": "1.0.0",
      "websiteUrl": "https://databutler.dev/api"
    }
  },
  "source": "mcp_registry",
  "summary": "Public holidays (UK, US, DE, FR), tax-year dates and DST switches for 2026-2028."
}

What the leaf hashes

{"body":"7b21539b268686cd09e58127713600752ecd06005e2e1980ac3dfcbeeb9dcaa7","id":45754,"kind":"listing","method":"baseline/1","observed_us":1793025406960756,"prev":null,"subject":"mcp_registry:io.github.physics-star-cat/databutler-calendar","subject_kind":"source_record"}

Proof

Fold these into the leaf in order, hashing each sorted pair with keccak256, to reach the root of 2026-10-26 (296695 rows).

1. 0xe51337fc2a11158d521f5db35752d274dc8349228914f244531783614b66cae0
2. 0xc21e5141afde90c2921c95056b5b05fbbedf936d32d4b61c4b9bd247bec5d6bb
3. 0x5f49657abe39ea545a22154d6d70f92e673f9809e8174a533a567b58df178d0e
4. 0x58ecae95e8b543ca7c1f0243f928e28bccf8d5904d2628e20b6846f0d52cae88
5. 0x7cc70411baee773df0f0e6be3c50272692986b1ca7c68a005b0cfa6eff9c5ecc
6. 0x9e07fbf7f7e79e9b0b600262a4704d13c0643711b1c709b5d829215ce03c6779
7. 0x58b6f769bdfaf524b65e5419d3c57bbba0ec27567e93058abcc62cdcdcf94937
8. 0x2fedc9e46dc6b214a1d33497f3f68b1acbac5ec1e452b17ef635c99233e426b1
9. 0x13310043ba03cba1d49faed238d6649837f256fc92211e77729a02015628249b
10. 0xae20f858f8c4842e59d76c7757bc2292fa50be5cf7697b284a497ee9ef7b2958
11. 0x29ce97b519f8e4dff85ae3006efb1220983d391295891bc9cbd27db51c46ec37
12. 0x2fc38b57208d692aab1ee89b6e26917df292126314027c27360c5644a63fd0bc
13. 0xc0924a0807e534382f518663123231c317124338831a2b310de2c17b09677086
14. 0x9bc5fc98278b9f6dc18c66c6e162aefd5244be03170d41bc5161f58ad11beed7
15. 0x95657a7d540ed6cac0bde9995782333b2562a9a6641853269ac95148827410f0
16. 0x5fb5dda563336cd1bc1b9f44c52b76237ae72ed2145cb9290f39f304ca7dd678
17. 0x74a0a08e4e7ab9aa5bfbead33dec7e1c7e8e364cff69a63720d764bbe987aadc

Day root

0xf43e8dcc3d451a4788b26be904c55e8c4c0fa75c9666796c51db38d37e2c0df8

Chained

0x702d5ac508f08b0d1accf36af25822d8e5660367494edd17a642fb61e158a57a

Published

On Arc Testnet, block 69251483: 0x495162f8936e19f0039918feebe6c307f327cd6bf8c37219620b1970041fa9ae