Evidence row 443171

What was observed

{
  "endpoints": [
    [
      "mcp",
      "https://laposta.usefulapi.io/mcp"
    ],
    [
      "web",
      "https://usefulapi.io/laposta/"
    ]
  ],
  "name": "Laposta MCP by usefulapi",
  "owner_address": null,
  "raw": {
    "_meta": {
      "io.modelcontextprotocol.registry/official": {
        "isLatest": true,
        "publishedAt": "2026-10-27T08:35:09.689763Z",
        "status": "active",
        "statusChangedAt": "2026-10-27T08:35:09.689763Z",
        "updatedAt": "2026-10-27T08:35:09.689763Z"
      }
    },
    "server": {
      "$schema": "https://static.modelcontextprotocol.io/schemas/2025-12-11/server.schema.json",
      "description": "Read Laposta lists, members, campaigns and reports; add members and build campaigns.",
      "icons": [
        {
          "mimeType": "image/svg+xml",
          "sizes": [
            "any"
          ],
          "src": "https://usefulapi.io/icon.svg"
        },
        {
          "mimeType": "image/png",
          "sizes": [
            "256x256"
          ],
          "src": "https://usefulapi.io/icon-256.png"
        },
        {
          "mimeType": "image/png",
          "sizes": [
            "512x512"
          ],
          "src": "https://usefulapi.io/icon-512.png"
        }
      ],
      "name": "io.usefulapi/laposta",
      "remotes": [
        {
          "type": "streamable-http",
          "url": "https://laposta.usefulapi.io/mcp"
        }
      ],
      "repository": {
        "source": "github",
        "subfolder": "servers/laposta",
        "url": "https://github.com/m190/usefulapi-mcp"
      },
      "title": "Laposta MCP by usefulapi",
      "version": "1.1.0",
      "websiteUrl": "https://usefulapi.io/laposta/"
    }
  },
  "source": "mcp_registry",
  "summary": "Read Laposta lists, members, campaigns and reports; add members and build campaigns."
}

What the leaf hashes

{"body":"c7347c83c6a17b3a1b7fb1887e31af9ebaaf100727ff58ef6b1832361f29827b","id":443171,"kind":"listing","method":"sync.mcp_registry/1","observed_us":1793093258432197,"prev":56679,"subject":"mcp_registry:io.usefulapi/laposta","subject_kind":"source_record"}

Proof

Fold these into the leaf in order, hashing each sorted pair with keccak256, to reach the root of 2026-10-27 (273461 rows).

1. 0x943803caf64cbdb5c9cbdfaac2d24a3477e587ab0ef265ba5d94992e50016c86
2. 0x347eaed42a11233c71fd21b983f84f6c6b4479af625044b0265b02aa2b51c2a4
3. 0x95b383871dad0c2b428ad0ac168feff8acbdc8911d8ce54cc8eb7f1f5fe24bd8
4. 0x8c515bdd13870faca17be688f61722c5ba96b03ca7ea9b866c6eb92c0472b5c9
5. 0xfcbd14adfd42667c14f44722bf8dfd2dd6e64bd1b0d7e60e89009c667d5d9a21
6. 0xc4c285c7bf32223976957ebec4e830c8fa398355243058dacedc70fc76d6cb1e
7. 0xc28da430bc97bb215c2f21a87251654e4329e9bdda283bd61b84743a9404aff4
8. 0x38fbc38ec2e334a0716a006e68bb7213f0f7ecc73cac1cef6423ceea555a6586
9. 0x95be16e3f6710770c567f06512177175fca349e1b4a315d73878f8576d0bb1a9
10. 0x2cd6df1b424ca01feabc6fe190b5be1ed5d1b01fcb3f327ec0d4a204f14ab73e
11. 0x62768d685fdf68a23a3746fae9fbbdd9613e343468823ae92676080679a3f19f
12. 0x21b50531db6db8c65523fd5559cda8006afb66474d66107f3c29e6cd41ec3fbe
13. 0x59c5c792b40d9054ce2b84a60af97fa54f2e1a2a369a6a52dc3f45de41128e97
14. 0xa3c9c760ee424c178bab782711c2b9d3e15a80a6fde99165972cb75b306bb8b4
15. 0xb4f7223140c8a36cb87a63d77cf617086d9968dc4658f03e102571ebe06e9ed6
16. 0xfecf3d4646dd4984a13dd715499e842c3fde63692336d97394c2bfd8e877ca5d
17. 0xf30fddbf4811226c58e8f0daf36fddd79fc5f1356b592bb1d99a8061ddbabe66
18. 0x2bf8151e5f157dd183b9de6fa00469551932a7a6e3f33a694895000ac9061197
19. 0x9fc354c0ea3efc3f1b6548bb77ea902a50f2c9647647ea61592efce2bd795699

Day root

0xdd77e5e99da32c3f154180d63e3c3e6fe11e896a2c6896412ef6b5c4bcf7e795

Chained

0x23bb4dfd09f55c15ac3962f53578e02c6114d5bfd9bb451cf8794fb6e2817ef4

Published

On Arc Testnet, block 69414147: 0xb2ebd83aafeb765a0ce66e76aefb133ed06606c98038fd56191e2bcd1dcb77b4