Evidence row 3395719

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": "2026-11-05T11:42:06.886683Z",
        "status": "active",
        "statusChangedAt": "2026-11-05T11:42:06.886683Z",
        "updatedAt": "2026-11-05T11:42:06.886683Z"
      }
    },
    "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": "1.7.2",
      "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":"75f093f857cdbe5d7777629f90c71573fa3f743a550bd68fdfc065bd8bca0a5b","id":3395719,"kind":"listing","method":"sync.mcp_registry/1","observed_us":1793881286919142,"prev":2726160,"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. 0x51cd130a3aa343e64e0b0b77cf1692add9d03d4f291f2c5b8f0fd081f881b7dc
2. 0xe6a30d2b8a75bca688c5565d09bec45eb0c8a45c96a5029c26f5218ff0fe95f9
3. 0x032b0a371b0ea91c7563eeea2300df879a32b1e489a4e42cb613b741c052f055
4. 0x81898de8b68302449e50fcd2ef00bc1c6c366af234794c9aefff20d09ed0d53b
5. 0xb30de69fb2253397c146d889431e53a8fde1c65b5c7b92d5b846dc8cdb214cd8
6. 0x251eca377916706fb583fb8251a868d80b4c16121cf3640a965079b02523cdaa
7. 0x13dbae15fa4a42c4c669fea9be12a5c13c1de8587252d5a065eed386e705088a
8. 0x56542f8712be0dc91a9e86e13687d63328ba1f543229e214d2a75474294ff2e6
9. 0xceecde186154091a7ca7f93d33ab7a493ed4449c0a809ca33b8f2e73a47b0666
10. 0x73ac9395161a28aa70c865846d565999049defccdb5a1b2a9c2d36f09f176f7a
11. 0xe964bd9a205d792aad43a3557d31ebf7a6884bc507beb064a4d06b7c0584b18b
12. 0x1583fd67b8e3b1d8876304f232270c77647f41936a37024d54488f675538a2f3
13. 0xff04f88f01db14dd3ab75ae4ad845f5913e27709edbc0eb6237c5c128a69b491
14. 0xc7c9a02b10652443317f29964cb3f80c8edb43f84b67644463046121ae250d1c
15. 0x20ca3add72ff47f6497449b7ee3adf1c6f2cdbedf8b5a49a56da543bf096a5fe
16. 0x01716548fb56e8e74ac29a1a638626afc662ed7e187bafcf089344de82365b83
17. 0xddde0b0de5219c91c717b03cab5216193dc0f26fb006aa8ba17020a71dbd997a
18. 0xa9caf228b42660818160afb416ff04cb014f57c4d8ee75ea3452fb76c3d8c645
19. 0xf72fe7c4860b9addb17aac4a00b8afc2f8085836173f10f31697c3d192df119b

Day root

0x9f0215efb0252701dc86d5600ce95f276cccc716759bf112525ae863f698d128

Chained

0xc54ddff800630c6cd9656f99e7d6a61adce99bf1cea37121600598b0a9a720d2

Published

On Arc Testnet, block 70942081: 0x88f612ad94ca63af4e4e9faab9f34b665b41f03828afac1571ad013cc62bba94