Evidence row 1478723

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": "2026-10-31T05:47:28.917998Z",
        "status": "active",
        "statusChangedAt": "2026-10-31T05:47:28.917998Z",
        "updatedAt": "2026-10-31T05:47:28.917998Z"
      }
    },
    "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": "1.1.0",
      "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":"4ae0e600e93e642b740822298f0339f4ec8427006df590c3f0b17d1e628add29","id":1478723,"kind":"listing","method":"sync.mcp_registry/1","observed_us":1793427350739932,"prev":null,"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. 0x81105a8c48a70281980e394faa1a931d6458fb393c78e4e0f248e975402a9003
2. 0x38856570149a0ea1ee71319344059ae72b50daa1d626ab5f07721ed61d04d7ea
3. 0xaa5ff2ab323370629faac417f9ad3f79ad0faf7421758b94fb0dcd8e631f5cb0
4. 0x723abd08731232e3e243eb7e50cba11e96a550a124e5113105c755b112c7352d
5. 0x0cad9778be35a63adc692d5c6e5a69e4d71bb6a91a15f40f1862df511a3424ac
6. 0x6fc30ecd76669fad56d31df4392825d5ef4f802e93200d0d63dd044f48b7d27e
7. 0x5cd8a80723b90bb45996ab1564a8f9e6c351e06ec76cc91408fe23b4038b91f5
8. 0x46c6ad149fc932cd5a15ee90fa98b2987fbdc907191b870bd277b8ea7d3f7043
9. 0x8d3a292fa9a39bcf456127057013c7f3af6c1569f73376d49a566e0080dd823e
10. 0xc36b5ced622c26bf9e870426edc95c0bcfadd5802e553856ebc8ebe2b1b41d89
11. 0x510bad1c2b93dacfbc3d0ef167811c74cafe473d14a976dd7b688b217eb045e2
12. 0xdfffa337c1b796d703a06a3c278ecc1115120a9e96b1b674c0942b855e8c05d1
13. 0x5da98004d63a664b48fb1cbdd3411495870573c4cdf283e78b4657e393085211
14. 0xa59dc4109e7747a67ff1c74b854a6a84d4177b254204f0623f549d72e4be7445
15. 0xb553c856ad5fb96dd995dd0c40f65a2d8efc7b7f254a1ac0f2c104350e544985
16. 0x919f237dec4df392868ab95f1d4300b185479ae64464cbc2e7385ad1fd6ab390
17. 0xa00a931d72706fa2402bfc9b441a12eb7c6a61ff42a542916106e3637177f101
18. 0x59f83f7228f07febe2780660e422e171b0359b8aa031ee3be07e991118130c15

Day root

0x24463725d1c0d9894bd6123691d532547aaa79f0762c0e45aa6a68acf1fd71ab

Chained

0x7d4824ff313dee7252a46f9d5c37b452851deb6c9f24a40c2f74ee0e53c82980

Published

On Arc Testnet, block 70093156: 0xedb7b832f4ebf6781b5ecd2ed241c435b862f4d3761541fa31adc1831b8c44a0