Evidence row 3958354

What was observed

{
  "endpoints": [
    [
      "mcp",
      "https://smartbill.usefulapi.io/mcp"
    ],
    [
      "web",
      "https://usefulapi.io/smartbill/"
    ]
  ],
  "name": "SmartBill MCP by usefulapi",
  "owner_address": null,
  "raw": {
    "_meta": {
      "io.modelcontextprotocol.registry/official": {
        "isLatest": true,
        "publishedAt": "2026-11-07T18:03:55.605022Z",
        "status": "active",
        "statusChangedAt": "2026-11-07T18:03:55.605022Z",
        "updatedAt": "2026-11-07T18:03:55.605022Z"
      }
    },
    "server": {
      "$schema": "https://static.modelcontextprotocol.io/schemas/2025-12-11/server.schema.json",
      "description": "Read SmartBill series, taxes, stock, clients and products; draft and issue invoices and estimates.",
      "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/smartbill",
      "remotes": [
        {
          "type": "streamable-http",
          "url": "https://smartbill.usefulapi.io/mcp"
        }
      ],
      "repository": {
        "source": "github",
        "subfolder": "servers/smartbill",
        "url": "https://github.com/m190/usefulapi-mcp"
      },
      "title": "SmartBill MCP by usefulapi",
      "version": "1.23.4",
      "websiteUrl": "https://usefulapi.io/smartbill/"
    }
  },
  "source": "mcp_registry",
  "summary": "Read SmartBill series, taxes, stock, clients and products; draft and issue invoices and estimates."
}

What the leaf hashes

{"body":"0ca6a75b746075b02cf427dc5f33dfa350bff96f62371f6849082f3c96229e0e","id":3958354,"kind":"listing","method":"sync.mcp_registry/1","observed_us":1794075907350395,"prev":3945507,"subject":"mcp_registry:io.usefulapi/smartbill","subject_kind":"source_record"}

Proof

Fold these into the leaf in order, hashing each sorted pair with keccak256, to reach the root of 2026-11-07 (195826 rows).

1. 0x47ba5085636608626eebe2ebbed624f2519a87a09c6f5356522a22be4e6a9ca1
2. 0x145cce3443043d26d32ed70b04a90a805e7290a7470b438282ed3b4e2f3c14e0
3. 0xc745a9a1e0c456128bc466c12ea843d5e4adbce6d92dfba6b39f5c17e24cc324
4. 0x3760689556281a1c592fe563efb0d320752b3cc65644fbbefe00e8bee45f92d8
5. 0x44eef5c0af9e9a232cdecafa4e6762aa363d221fa8e6c1d7d28770275ffcf871
6. 0xbac4cdf194e48ddd20c5aeb3fb7ddfb85c0481ceda1d74d48fd20fb2967fbad7
7. 0xeb52322f0491f6efc2d470b9628f2e6b44cb8a55b6188d8ae3d4ffc4ab1d45f9
8. 0xbc0351f3f3b0b0a4aa99c4943455e585e3bbfbff4f2f08eba5c6084cdb3c40c4
9. 0xfc02c66e5920ca41c349d39b277d7de471ddd1ac3da3ce5583132352459a155d
10. 0xb2cd02ef2ddefb64e891c63a30b53c4109e63f6275008e71bc91bdcd5e3d9bbe
11. 0xdcef6acba9d37bab74a50c8fd6e5d76714bd581b30091a3ce8c633f1c9636e5d
12. 0x7fa0c6c6e1a9c83e2499d02f17ed9f86e34e12e026ca9d7690e468391f79b500
13. 0x2581262e285739180c2a2399a20b661474ed5d555cb7236b3270458825248da2
14. 0x62f69e19a85a01019b04cf82cf89e7ecaed4f1828e18c1a83c33f808b13e077f
15. 0x1440bd4864ece4f3cb1a2fc48e88ddbd78cefd359ae16ceeb69a13e36b55021a
16. 0xf0a56561418cd0342a328707933cc222d8fa725efff7ffd081e0226ee8c46c0b
17. 0x54292a94f447f1fd33c01b5c99da465043f11022958626a2ea562c457fef697a
18. 0xff23fa8a9de3f957315ef0dfe7e8d8f6b1a51dae05fef7615c59794e019ff05c

Day root

0x17da9e85e1b138541355d33543ff34e3503cd3a49d37728fb53643e2a0416a2d

Chained

0xed34bd4af17282643de8cb9591c84d0aa1b39e1e9ae9864941e543f5a15718cb

Published

On Arc Testnet, block 71280839: 0xc3f6784179e0ca32236ba89472473e882a81d03fcc5ce27ca58ded2e01e112aa