Evidence row 2708745

What was observed

{
  "endpoints": [
    [
      "web",
      "https://postmarkr.com/"
    ],
    [
      "mcp",
      "https://postmarkr.com/api/mcp"
    ]
  ],
  "name": "Postmarkr",
  "owner_address": null,
  "raw": {
    "_meta": {
      "io.modelcontextprotocol.registry/official": {
        "isLatest": true,
        "publishedAt": "2026-11-03T19:23:42.528731Z",
        "status": "active",
        "statusChangedAt": "2026-11-03T19:23:42.528731Z",
        "updatedAt": "2026-11-03T19:23:42.528731Z"
      }
    },
    "server": {
      "$schema": "https://static.modelcontextprotocol.io/schemas/2025-12-11/server.schema.json",
      "description": "Prepare physical letters and check their status. Review and pay on Postmarkr before mailing.",
      "icons": [
        {
          "mimeType": "image/png",
          "sizes": [
            "256x256"
          ],
          "src": "https://postmarkr.com/brand/directory/logo-256.png"
        }
      ],
      "name": "com.postmarkr/letters",
      "remotes": [
        {
          "type": "streamable-http",
          "url": "https://postmarkr.com/api/mcp"
        }
      ],
      "title": "Postmarkr",
      "version": "0.1.0",
      "websiteUrl": "https://postmarkr.com"
    }
  },
  "source": "mcp_registry",
  "summary": "Prepare physical letters and check their status. Review and pay on Postmarkr before mailing."
}

What the leaf hashes

{"body":"ef529f1c4192b035121878d5966342c54810df5b06b6472a88628cb03e1efa28","id":2708745,"kind":"listing","method":"sync.mcp_registry/1","observed_us":1793737185116642,"prev":null,"subject":"mcp_registry:com.postmarkr/letters","subject_kind":"source_record"}

Proof

Fold these into the leaf in order, hashing each sorted pair with keccak256, to reach the root of 2026-11-03 (425475 rows).

1. 0x50e7259bef35dfa2b6511aa4762ae6860187126877dd2bcd81cf32db9d4a92a7
2. 0x4d25a09863a957527cb1f18e4f06027a9720c22806a8149943dcef9ed8293627
3. 0x4673531d1e327d26878089348853d6108fb5aed3d130d5ceecbdf3677aabac09
4. 0xdb5b58ed3bae3bd4078db07cd5db9c707f071e5d1458ea948acf18512b83a200
5. 0xc939c4f3759c8692929557565828d8353612013ab6b87ac185cd0855d37beb95
6. 0x795525dcf91e711f831f0829f634199fbf07401da5e81ab6424e4bf2cbf4a586
7. 0x256a6a71e925000424d206556213bed6bbf76edd07001d1cfb57ce29bed3f549
8. 0x358194c58528e6cad76b7a9c57f4acfbfc433ca1c68950b4df147a31e05e35d7
9. 0xf480fe56ebbd03dd0448e961a559ab34a79cfcb7d42567ca58aa886b0c18042a
10. 0x283e10f41b06d325f58d694af998dd93bae0b294594bb6a777e1cb8f34b86620
11. 0xe4f083b851a52131508ff36b467574b2481901b815ca2e6b3e6affb3eb418349
12. 0x962accc532b8bb0d6c9cac258a25ac9d23aa091875ae918d830b485f55c7adc3
13. 0x94187c120b8099d2990297ee88e8eb9a21573805f8105e5ec8b85c062f211c25
14. 0x4b9907277e91efb1f7d9761806af6ae068cc26782473322e3d536248ba73fc2e
15. 0xda5db54125314643afd2553cc06bcc66d4fe0ce60c8998f4ce0b19c465813b51
16. 0xd3872af0d8c282b0d088e008b24701ec7576ad8e40ceab245546a2e300818868
17. 0x3ef2d6c56d2bc5990e646c07605e90ed24d1c642cbcca8f60a35422b8b7981ee
18. 0x717b5d7cbc24826c5b1f7b7433bf30b76e9ba1370476af4e1b494a5211897cc3
19. 0xe35032d4b064b015fe60638756eeb0bc24e7c7943586468d33349341ee0ed3d6

Day root

0xb646ffa569e24bf8336b0a15a9d98d0a2f1239f58e10c2b18a9d22e43343566a

Chained

0x35e926359fd19031c6b5e08fb3b44f2524386a57c8fdd353336c185603f53d43

Published

On Arc Testnet, block 70601990: 0xa5f9dadba13cde129126b950e64b815e6833cb8ff53b75026c9dbe769c3768c7