Evidence row 23498

What was observed

{
  "endpoints": [
    [
      "mcp",
      "https://headerguard.mike-tusa.workers.dev/mcp"
    ],
    [
      "web",
      "https://headerguard.mike-tusa.workers.dev/"
    ]
  ],
  "name": "HeaderGuard",
  "owner_address": null,
  "raw": {
    "_meta": {
      "io.modelcontextprotocol.registry/official": {
        "isLatest": true,
        "publishedAt": "2026-10-09T12:17:36.206354Z",
        "status": "active",
        "statusChangedAt": "2026-10-09T12:17:36.206354Z",
        "updatedAt": "2026-10-09T12:17:36.206354Z"
      }
    },
    "server": {
      "$schema": "https://static.modelcontextprotocol.io/schemas/2025-12-11/server.schema.json",
      "description": "Scan a website's HTTP security headers (HSTS, CSP, framing, COOP/CORP, cookies). Score + fixes.",
      "icons": [
        {
          "mimeType": "image/svg+xml",
          "sizes": [
            "any"
          ],
          "src": "https://headerguard.mike-tusa.workers.dev/favicon.svg"
        }
      ],
      "name": "dev.workers.mike-tusa.headerguard/headerguard",
      "remotes": [
        {
          "headers": [
            {
              "description": "Optional. 'Bearer HDRG-…' (HeaderGuard Pro license) for higher limits. Works without a key.",
              "isSecret": true,
              "name": "Authorization"
            }
          ],
          "type": "streamable-http",
          "url": "https://headerguard.mike-tusa.workers.dev/mcp"
        }
      ],
      "title": "HeaderGuard",
      "version": "0.4.0",
      "websiteUrl": "https://headerguard.mike-tusa.workers.dev/"
    }
  },
  "source": "mcp_registry",
  "summary": "Scan a website's HTTP security headers (HSTS, CSP, framing, COOP/CORP, cookies). Score + fixes."
}

What the leaf hashes

{"body":"01312c4dd98f07ef2c8251ff6d49d899a552e4e562e506a490448265d5005e80","id":23498,"kind":"listing","method":"baseline/1","observed_us":1793025350875333,"prev":null,"subject":"mcp_registry:dev.workers.mike-tusa.headerguard/headerguard","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. 0xc1681a07d3ae1114bd4ad4113f8220b12603ee191cbd2221afec6faf03edb742
2. 0x190209cd1ec91170bc9ad2961182ce5b452571ad4c4b86f81baeaa193d84aa2e
3. 0xee03167a8c8aa3e0fddc3f4fb7167ac7fa33e924627ef000ab70cd4b065616ba
4. 0x0a4f7438ecba2855f48ccf95c05d77c2b3a7bf423b3dc8e5a320eb650c3fd414
5. 0xd31b23567435245cd53db4b243dde71d80efcbe57e546f61c5a17318be0ae51d
6. 0x622475170ec3f7482ac2e4896a09c7ba222721e6367340b23e237adf9b6c0ab2
7. 0xfb227a8eb182a1095eb3edf3fa36652f8ffe74da917b847bd957b033c82fb8f3
8. 0xb2704534ec5e3cf350150a20ed35f388b9eb0484ceaf9a0094b99284d38f503b
9. 0x091243e4069dfd2eeb0b8dc6581a268965484e278ee245186f03e870f550fec2
10. 0xdb630840559ca98efe4caba77a155e418f81e1eb0b7bac122b345364c8b871dd
11. 0xf4fdcce8aa5f97c7e98aeab4ad558743dfee0aa6d4d12415896a148aee663b17
12. 0x111576180a2fecebcaf560e6b72ed8cefedaacb8c607539ece417b7465831f66
13. 0x96eae331a78c1c9248bc58130ff83d31b884760a51fe7191de2a39105ae7c072
14. 0xdbe2e8dd65ea1248b2936612538f18268abd5cf27ebdab3737694571ad496004
15. 0x9f68b5e15459cb62b8c0cd4c124fa61c74147b4a5755a200fbecd21a581635d1
16. 0x123ec8bee20ddc55223eeef5a4f4d6c4b6416515adbb911c56759f5cde56e452
17. 0xd0651cb9bc8155eb52b5247d506e74b8a935057dc190ba52091702ac25ed3a40
18. 0x9a9024edb5069d88a324facb310a5ce8e495214bbaa968f077bede437390194f
19. 0x9b9ce5b74b9bab5121612ef6b64920a8d453cbf311096a423eef9702747e868a

Day root

0xf43e8dcc3d451a4788b26be904c55e8c4c0fa75c9666796c51db38d37e2c0df8

Chained

0x702d5ac508f08b0d1accf36af25822d8e5660367494edd17a642fb61e158a57a

Published

On Arc Testnet, block 69251483: 0x495162f8936e19f0039918feebe6c307f327cd6bf8c37219620b1970041fa9ae