Evidence row 3723250

What was observed

{
  "endpoints": [
    [
      "mcp",
      "https://acube.usefulapi.io/mcp"
    ],
    [
      "web",
      "https://usefulapi.io/acube/"
    ]
  ],
  "name": "A-Cube MCP by usefulapi",
  "owner_address": null,
  "raw": {
    "_meta": {
      "io.modelcontextprotocol.registry/official": {
        "isLatest": true,
        "publishedAt": "2026-11-06T12:09:31.297166Z",
        "status": "active",
        "statusChangedAt": "2026-11-06T12:09:31.297166Z",
        "updatedAt": "2026-11-06T12:09:31.297166Z"
      }
    },
    "server": {
      "$schema": "https://static.modelcontextprotocol.io/schemas/2025-12-11/server.schema.json",
      "description": "Read Italian invoices, receipts and SDI notices; validate, prepare and submit agreed drafts.",
      "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/acube",
      "remotes": [
        {
          "type": "streamable-http",
          "url": "https://acube.usefulapi.io/mcp"
        }
      ],
      "repository": {
        "source": "github",
        "subfolder": "servers/acube",
        "url": "https://github.com/m190/usefulapi-mcp"
      },
      "title": "A-Cube MCP by usefulapi",
      "version": "1.7.4",
      "websiteUrl": "https://usefulapi.io/acube/"
    }
  },
  "source": "mcp_registry",
  "summary": "Read Italian invoices, receipts and SDI notices; validate, prepare and submit agreed drafts."
}

What the leaf hashes

{"body":"a12e2b0aa361303257390e61bb6a33744142568e46dbf628cc5e8f88ac3f3dcd","id":3723250,"kind":"listing","method":"sync.mcp_registry/1","observed_us":1793967736219350,"prev":3413969,"subject":"mcp_registry:io.usefulapi/acube","subject_kind":"source_record"}

Proof

Fold these into the leaf in order, hashing each sorted pair with keccak256, to reach the root of 2026-11-06 (303443 rows).

1. 0x6f5b4b91ff4bbabfb2b6269738ac0297c3c60ba8adf9a618f094e08af8b0fd5f
2. 0x10e5c60730ec311fb2fa2922994e620ff6f67dff2d893d675495ea7b2df43ab6
3. 0x698bb628298b1c3c75bbfbc2435441b1b073c45896e440452fe5f0f970c266a7
4. 0xad51562fb78ae41e8d1c138383c165f0d2b101d4353fe916bfcbec769dc17196
5. 0x04995bb491c7202eefc65c50898104c9a3311d41b48b7233245350382abc2184
6. 0xc8af3bc3b956df16654ba92cbdeddcaf59d467aaab7d26618a624612507c7e91
7. 0x34041ce6c225d814a9698c96fc19d5e3db8615c5dde4329446d24f7691d85b5e
8. 0x520008ca857ca33e49f71997c2cdaa5af05fee1daca7210fd167fecfc3d89588
9. 0x0d922d350db86f73a60d635649d6b0ebc2ee89e566c12fe6699fbde27d1f7ffa
10. 0x7174aa5981dea8dd6e5ae98f7fc95eeda8f193b9f57a6f8a2e7e02bce642a192
11. 0x98c7fe96abdf3ab33bba791d4bf6590c5cd28cc845d343f47002ac465aa0a7e3
12. 0x4092077bc27d3aaff9a0e6f5102e2cba1b449ddc82c585e89d1fd755282a3000
13. 0x4bdc3c91420724e924497ba1567e5ea70ec605a97ebac60412342e656a06f913
14. 0x9d64f8255961253ea4f756bf8c6a5a4a57b070af0bf9a71a9871268a306d0024
15. 0x76ebf1850cd69318e55f7c76c298e951486d7eb89da9726d99a973873bd3e0a8
16. 0xa020619e8f130eeb03f3c2beaba0422017bd8b95688ddf44db1c31cf0fd40a6a
17. 0xe98c6c6b56a21a2fc4c1edfe2563812e690a6a4336d11aef772ac1799d1ee7ca
18. 0xd422a75f6c3780ed53eca52b50bf40b8f17dc14cffb804142e44fc9f2672029d
19. 0xc0d08d48601d1be90bcfc025e66bcaa0030120d688dd9c919b36c2c4446f4948

Day root

0xb30ccefe7182c6f767e1fcbfb5f64ffd649da831f665f65c5ff39cd40512284f

Chained

0xc383f7ef68d2914082484765aa09e42c12c59a74a096ae64127c562618c506d3

Published

On Arc Testnet, block 71111178: 0xfba13cb7ee4ada7f2fee3702a786a2201596be2ffea37dfc281ab4c8e9942fe1