Evidence row 3987130

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": "2026-11-07T21:54:57.17011Z",
        "status": "active",
        "statusChangedAt": "2026-11-07T21:54:57.17011Z",
        "updatedAt": "2026-11-07T21:54:57.17011Z"
      }
    },
    "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": "1.23.5",
      "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":"02e967728f7f1bd32f99aaeb3a83e5d095bd920a39ef39c913bc6f77e1c4f504","id":3987130,"kind":"listing","method":"sync.mcp_registry/1","observed_us":1794090327990337,"prev":3958354,"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. 0x89333af9af471cca3bb1e612b67bf667500c590a171dd9b778346baac95e03f2
2. 0x7888779bc98ec5aaf4c3fdd97f9778adb4968d04b322908bd6214c4fb35eb503
3. 0x7a767d2a168c06ab6bea0ab312c5e870c4d6de704773edb426353b107951db30
4. 0x7ae75f552e98bf81dd823fc132809fc276e463f7d9aa7723640ab2b1ecf5bb8b
5. 0xab6abfe9f9f8e351b7e9c78de00f47fc40a4cb624f8890bab0802e01251c5386
6. 0x718790a68c7397637c5a373aa07a4701c2cb0274c10681c2222e60244e52da3c
7. 0x897fc5e7526e70826dda340a04c046c320ea53e9f9c5ebc2bd77cad753e2239d
8. 0x376d3e2901db8a63182e27c195300b1d2dbf7d354fbb130cfbbbd9db2770fade
9. 0x1fc186f05bc745e7c8c3a996dc89c2fb684296bce59675b85d8bdc572d327530
10. 0xe7c395726676d31532f8dc535ee10cbb763d0763b7d70622f0a5b85f46e11fb6
11. 0x361638af2fd0ccf907db054262ed36e259f0545698dedfae6f2e94e24e8f43e5
12. 0x6029236289c3f232d8a52c70313dc9592ee92ad910140c5200de2b733046a006
13. 0xec49601319806ac4fb8864fe5b58c4d0e2904402b01d96fee8f1e2e36118c30f
14. 0x12c0a392774b845f910669768178b834bb75c37650d35b673c7a7e05ebd31c5b
15. 0xd41994358bb34b15f062df47abfbb736ac4887eb6ef21ce32a5d581e6ae47e6e
16. 0x39ddab61a3a1eeffcb2f54acf6ff87eaec375674f3e77f00c342826d4e1bf071
17. 0x3b69f6d98c91b21287021db092e52491474f0d08438393ac130d6a3c273bcd4a
18. 0xff23fa8a9de3f957315ef0dfe7e8d8f6b1a51dae05fef7615c59794e019ff05c

Day root

0x17da9e85e1b138541355d33543ff34e3503cd3a49d37728fb53643e2a0416a2d

Chained

0xed34bd4af17282643de8cb9591c84d0aa1b39e1e9ae9864941e543f5a15718cb

Published

On Arc Testnet, block 71280839: 0xc3f6784179e0ca32236ba89472473e882a81d03fcc5ce27ca58ded2e01e112aa