Evidence row 3413969

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": "2026-11-05T13:38:47.09153Z",
        "status": "active",
        "statusChangedAt": "2026-11-05T13:38:47.09153Z",
        "updatedAt": "2026-11-05T13:38:47.09153Z"
      }
    },
    "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": "1.7.3",
      "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":"ea47cc99ebac6160770f7d821f6f9cd7823bb1c87eedb7fd79819a253ce184ae","id":3413969,"kind":"listing","method":"sync.mcp_registry/1","observed_us":1793888494930938,"prev":3395719,"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 2026-11-05 (322504 rows).

1. 0xa7f5c8e3f5f40b8000008b782b8a8d7a08b862ed4403f617fec65b9f16e6aae7
2. 0xfcf135693e65c68a14f5ae0860af38c8a31793b42967f22d6599a3286776378b
3. 0x4bfb737401f995eb7effa94cdef9b64788f70f860158340191171790b28c0771
4. 0xc8d039bb1170e5812b42b2ead599c90e0bcace803f6dfb9321af3a98106e4694
5. 0xc187f47fc4e36f20dd0c5d0d705e7ada03eaf2a182b6185b32991db211936734
6. 0x60e76dfda55f947419ff9fd45e0f74d1f173ffedee30e25d09c40b03277c2add
7. 0xd459aa5ce0988a14006368f7c23348249015ac3f7be4124eda120b8629a9226e
8. 0x0e7dfac3e5597877ae8024faa914b28f045476ad91747cad47bf2cb3cac99749
9. 0x47f5804181d7998df94a3f2b290b1aa86f46b49eb3f3d3a18cb99ac65ffafa93
10. 0x52e4f738196d62b6126175affb8b7d8035c9e11a9421bcb0193146ab698f5b65
11. 0x1b71825c9547de15875bbc91c862190903fc855635b9a0003ffeec61dd5f70f7
12. 0xf528dedb007608bf062acc66d6170b88ae8f4af2805b598d1a1de82f74abb0b1
13. 0x57cf19d44d9e81bc14fc4685e033394f8b05fbd0eb27f3965637ef52d2d4b40b
14. 0x9b9fcbddc5e61cd56d284bbf85f74d7b6024baa4338a1e4f6406e8c01db66d25
15. 0x1c65721edf79939e1513441d5a9e3be301d6801a492ba436ec3148b4e982f044
16. 0x94ca8b6a95491be1f3ac6de55d756552e3d7dcdd3a530f60ac239342f2227667
17. 0x25f3843b1f8d3ded906cf440101c0137d8f897b0b72f946f0d5bc12c3da6b136
18. 0xfb4e1f4d701ae273fb0cd57757f659e327608e5561a752b2099b436618493c84
19. 0xf72fe7c4860b9addb17aac4a00b8afc2f8085836173f10f31697c3d192df119b

Day root

0x9f0215efb0252701dc86d5600ce95f276cccc716759bf112525ae863f698d128

Chained

0xc54ddff800630c6cd9656f99e7d6a61adce99bf1cea37121600598b0a9a720d2

Published

On Arc Testnet, block 70942081: 0x88f612ad94ca63af4e4e9faab9f34b665b41f03828afac1571ad013cc62bba94