Evidence row 1541065

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": "2026-10-31T21:45:10.232504Z",
        "status": "active",
        "statusChangedAt": "2026-10-31T21:45:10.232504Z",
        "updatedAt": "2026-10-31T21:45:10.232504Z"
      }
    },
    "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": "1.5.0",
      "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":"497fe7c049ca2928ffa48a358714fb09c34cd4dd82505598bef5066fb234aa39","id":1541065,"kind":"listing","method":"sync.mcp_registry/1","observed_us":1793485021003197,"prev":1537654,"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. 0x0c4993ae38b185be02a905b6aa31ed2319534c6dbe9a3574667b96092d731cc6
2. 0x986f3ce8115b6e8519ac550f0be0a39c81b268ebab2658b3c6ca9a773edf502a
3. 0x0c997ecd1765f0f4ab0653356e49736236aca4a06de589c9b813804bb3997a14
4. 0xcd0b17d9d10ac01044bdf7d92237c774cf444984e2da244ec3a7dcb5f660f428
5. 0x72f65e4755359df1e9a1627906bafae391b3720b687c878e80bb6f40ecbf7501
6. 0xb462649f3af0804c784cd70490fc5d7539391a7d95c476c88223fb675f8fdfe6
7. 0x4cc8b8a08c5d6ecaa49f03a561e393cb17dba90aca71329de20b4bf651468d72
8. 0x5e89d64cf69a2cf63077cd9cff10c176f40b1d11967aeecffb4182e9019e4228
9. 0x390db889c151df0ce495834e1a20d80529dffa7ba0a1a9e08d789c0593560c2e
10. 0xdcc72be04e3c6429c69953c6d07fef454a10b9eba9d307d5a1d7b052c3ae0412
11. 0x84bc3321c25b2b93e3cc858538fd0f13b7dae893f6f62cd87c66a4ab49ed06d6
12. 0x0e7c19f6e7bd242049d24eac9ffa226a36b32ea4e4fee5c033e0fbf08ae0b65e
13. 0x232f8590881ea4921512fc0756dcc829d8993faf60aefe4803b3883808832315
14. 0x5f01ce2f7be13617b127cba8dfc54bc12d54dc74dbe1632c8104af22668fd4f3
15. 0x72fbe549c493739bb99e38209648de550f136f904e61b4f7609a937c2630a055
16. 0x2bca4aa3c59fe9209016c64bd8b706423477e3407201a00165afde9abf6fee2b
17. 0x37f13582abb3c002d51c2f190c312129cbc3a39754618fee2c75c2441bb1eb94
18. 0x59f83f7228f07febe2780660e422e171b0359b8aa031ee3be07e991118130c15

Day root

0x24463725d1c0d9894bd6123691d532547aaa79f0762c0e45aa6a68acf1fd71ab

Chained

0x7d4824ff313dee7252a46f9d5c37b452851deb6c9f24a40c2f74ee0e53c82980

Published

On Arc Testnet, block 70093156: 0xedb7b832f4ebf6781b5ecd2ed241c435b862f4d3761541fa31adc1831b8c44a0