Evidence row 1537654

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": "2026-10-31T20:57:32.086995Z",
        "status": "active",
        "statusChangedAt": "2026-10-31T20:57:32.086995Z",
        "updatedAt": "2026-10-31T20:57:32.086995Z"
      }
    },
    "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": "1.4.0",
      "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":"31ad52cf41a5b019691e0e580adb252b11f041bac549a2f4c8abad01de04a07d","id":1537654,"kind":"listing","method":"sync.mcp_registry/1","observed_us":1793481416042958,"prev":1499990,"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 2026-10-31 (246033 rows).

1. 0x24540d769917b5b68107ce9e2fe3c9fed5b3c895c20d4d24c1c473c7f2711506
2. 0x9614f49ed4a35f144fef72819ee7c39fc607de9a45cb6e3a69c632e8fdf44997
3. 0xf74a70568154e4cd5f3d0564b5c8cff6e198e0e4045270294165d255edf926db
4. 0xe6a31399ebfdf355f23b889b410bd695ff2b54d6a3233fc860d99c42e9c10596
5. 0x2df9abbc5777478d215aadd91dfcc720031ecc2e5585ef0ab41b7e2cad505c7c
6. 0xa55b9115a438b9c0619c2dccf79acd38bdda4d959ea35d46f0f5a57a2137a01c
7. 0xdfa136caab4566638b73458cf5e2c38e747ec673d005cfa6599e2570caaf19ee
8. 0x5f6d8b1c5579fce2f11a26a4052614a1164127de960a48cac0762c7c5c0587a2
9. 0xea0656f6e309610d3bc9d66875efd2034508014e7b2ac59b9177af77e4a23d97
10. 0xb013e2eb5f81ff56171f0ab0e64574c5bce0f3a75014ccff26a2621b5e2b9d6a
11. 0x6d05988ea249d9bdf7c3d9fb320e6a61673630ebb7f8c94225aa70a52c0692e2
12. 0x2825fdfbf632f2356fba98871bc763c31e265d033d9382197173c7357fdeb5c9
13. 0x1f697283f41d2425268978efdad1b5ce0e4fee30f5bc2fba2c8f832307b40721
14. 0x4c7bf6d7d7c379b3c87447200f991359af0970fc33642e540cd6032a5a5b24f6
15. 0x5212e7c531721a66b1d21d8222c94df019d60ce8150c25bfebe2e6eb1dd39726
16. 0x24ea73817c2ff07f87a42be89aff36ac5fe49b64420a647cd406ee60e6a77f70
17. 0x37f13582abb3c002d51c2f190c312129cbc3a39754618fee2c75c2441bb1eb94
18. 0x59f83f7228f07febe2780660e422e171b0359b8aa031ee3be07e991118130c15

Day root

0x24463725d1c0d9894bd6123691d532547aaa79f0762c0e45aa6a68acf1fd71ab

Chained

0x7d4824ff313dee7252a46f9d5c37b452851deb6c9f24a40c2f74ee0e53c82980

Published

On Arc Testnet, block 70093156: 0xedb7b832f4ebf6781b5ecd2ed241c435b862f4d3761541fa31adc1831b8c44a0