Evidence row 443173

What was observed

{
  "endpoints": [
    [
      "mcp",
      "https://laudus.usefulapi.io/mcp"
    ],
    [
      "web",
      "https://usefulapi.io/laudus/"
    ]
  ],
  "name": "Laudus MCP by usefulapi",
  "owner_address": null,
  "raw": {
    "_meta": {
      "io.modelcontextprotocol.registry/official": {
        "isLatest": true,
        "publishedAt": "2026-10-27T08:35:10.251528Z",
        "status": "active",
        "statusChangedAt": "2026-10-27T08:35:10.251528Z",
        "updatedAt": "2026-10-27T08:35:10.251528Z"
      }
    },
    "server": {
      "$schema": "https://static.modelcontextprotocol.io/schemas/2025-12-11/server.schema.json",
      "description": "Read Laudus ERP customers, sales, purchases, stock and accounting reports; create customers.",
      "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/laudus",
      "remotes": [
        {
          "type": "streamable-http",
          "url": "https://laudus.usefulapi.io/mcp"
        }
      ],
      "repository": {
        "source": "github",
        "subfolder": "servers/laudus",
        "url": "https://github.com/m190/usefulapi-mcp"
      },
      "title": "Laudus MCP by usefulapi",
      "version": "1.1.0",
      "websiteUrl": "https://usefulapi.io/laudus/"
    }
  },
  "source": "mcp_registry",
  "summary": "Read Laudus ERP customers, sales, purchases, stock and accounting reports; create customers."
}

What the leaf hashes

{"body":"5820623b6590e787d97b5f5b6781b1fbc4da48f3779eb2c7b80b413443484e47","id":443173,"kind":"listing","method":"sync.mcp_registry/1","observed_us":1793093258436869,"prev":56681,"subject":"mcp_registry:io.usefulapi/laudus","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. 0x29056f5fd7b3ee0f2828016d756af519906590b9c16eec0ec19b6f19dd1b7a3f
2. 0x746281075cfce7a887c62416a6a8a6b82dcb6ad4ecae88923baab9125a39147c
3. 0xc147580fd126787ae60ca3d74884c5b987c03065c0dd397cf20d8daa10d19fad
4. 0xca36233e149683550261ef45d2a1ec982c6e0a082494ebc8e3dd2703e3df8605
5. 0xe61510214a6e9203eafee89317d0524dff6c3902ea37c0155a6da7892005fba6
6. 0x0404345a31a9375f509213a919faad92f8ad9a25023cf7f343fa64b60c3586d9
7. 0x9e004270e7c09558ae7cbe4984c7799c0adfcc99ba86a137df7f32857fd9bac6
8. 0xaa20334abab3fed61e306767293e113b7b06188cc63660f57ae614d2e75b8df9
9. 0x2d6333e3620f52445fa8332fc770cff9ef3b36d0353b01b5be448037adfc6109
10. 0x119d4c62f2467379b4ad8ecee541493dc0dff08b8e9843267888bcc9adfb14af
11. 0x64977be4349e1af29930fcfd7d89ebbb219bc4a1a076ecb37395cda952cbeb6b
12. 0x53be2d72842ed384672ee78d06cbad599558474b78db9065a3b26f87d53522fa
13. 0x28be2f2303fcac4decdb6323b0f4ee8f8a31038beb758eaafc604a98626292e4
14. 0x8ff18b1523f9fbdd16a5796cbe184b46854c06256508af8de5509b598370c725
15. 0xa383a1cfe9b3f6af67eb4c7642564b9424d46d7fca90e7ba175d549f8b67dd0c
16. 0x52efa60e0c3d8525486d2310eb3b6b566c9677c64fd1f819edb072cf101bcbdb
17. 0x22c1fb9487ee0b9732fa017a0cc321eb27a60c08450d112f755089796e12cb1c
18. 0xa20d48798a34aba12eb9c7297722982d910f06c148f5e27ac59307422964a585
19. 0x9fc354c0ea3efc3f1b6548bb77ea902a50f2c9647647ea61592efce2bd795699

Day root

0xdd77e5e99da32c3f154180d63e3c3e6fe11e896a2c6896412ef6b5c4bcf7e795

Chained

0x23bb4dfd09f55c15ac3962f53578e02c6114d5bfd9bb451cf8794fb6e2817ef4

Published

On Arc Testnet, block 69414147: 0xb2ebd83aafeb765a0ce66e76aefb133ed06606c98038fd56191e2bcd1dcb77b4