Evidence row 1257645

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": "2026-10-30T15:16:10.137359Z",
        "status": "active",
        "statusChangedAt": "2026-10-30T15:16:10.137359Z",
        "updatedAt": "2026-10-30T15:16:10.137359Z"
      }
    },
    "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": "1.5.2",
      "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":"e746c8c0c3a4c5780642dc6e38e8dfd3b22e56db4f8483857413aad3dd1fb2b2","id":1257645,"kind":"listing","method":"sync.mcp_registry/1","observed_us":1793376929920530,"prev":1249658,"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 2026-10-30 (243099 rows).

1. 0xbbba0bbefff85eb2d565860714ca0f5b96331482e950562bfa794dd9a35c2f75
2. 0x0f0e3ee69e8dbfc9496d3f4dac7a2971abb29b2c1aaf2d73befaaf6c9fcb1596
3. 0xcf22439f9ceaa19005b1dc408c5485803cca5435c53baf0000c3e93f3e28e582
4. 0x5314c15c4184749351aa467228e3b7071e78666f800410f956d1159844ad1257
5. 0x3c4ad5a9e45ca8c3aebb69ea250a78e657b8edeb23643261db91f701f13492f6
6. 0xfdb0d9189cd344833a10f379c4524e70f23860042dc0412636088c5ef18a3141
7. 0xc4aebebbd54b62c534a3f78e17680f25fd6c292511a29b2001e9c16c2637e144
8. 0x675dbed62e12729fda0070a330ffa9c06f0469cb88964cfb1ab41a17e0999a7a
9. 0x94731acbe47f546e6b0f54c91ec88aa55788d958f0c74b3558014ea7e69f2b99
10. 0x479838f184d4fda2eab538e5c7930f8fda799f0e66087296d3ae44a47e4ab472
11. 0xe434e81ed0beb4a561dde76c74e9bde7edc8f28962e0a21313f5339952d64803
12. 0xb288b591f483370463f2cb819636251f83f80924cd2bf8511441413218f647fb
13. 0x9284dae9a7e06f703013033011cfbc40fdf815bacecff8ae80861ffbba56d6d6
14. 0x4ac91605f15503f7d7aa9a25d4e54c100a1a62c26e93a7ed87049569e871a9a4
15. 0xa0b1f6bc1eecfaf70581673c1a7f638b96d1769a5c578c460337f7db0dbe963e
16. 0x0c59b8770d2782eb535aefbb9b2f6810bab4757f51b37e00f5147713a1de9481
17. 0x61ef83255d34604cb052882568ca1d1386ac3cfb8284509715bc1734cff77831
18. 0x0c43c73b62a5d49ee1444b5dc4195fc5b16b141d3f4458e2e9fbd5fd6ecb367d

Day root

0x0826c7ad6039e06a2360ca0a4a3a4fe7f2626c6dc19f71a37599386f78b39875

Chained

0x36b4c8a1063758f0b8765fa1bdf75fa92fb543cc183add3e261880ee2bd1f822

Published

On Arc Testnet, block 69923247: 0x8704744146c6967c8abc9e9a99de4db7283b29e840922ea83a69b6fe776e6861