currency minor unit audit derived

{
  "input": {
    "body": {
      "amounts": [
        {
          "id": "A-1",
          "amount": "19.99",
          "currency": "AUD"
        },
        {
          "id": "A-2",
          "amount": "1250.50",
          "currency": "JPY"
        },
        {
          "id": "A-3",
          "amount": "12.345",
          "currency": "KWD"
        },
        {
          "id": "A-4",
          "amount": 0.1,
          "currency": "USD"
        },
        {
          "id": "A-5",
          "amount": "0.00000001",
          "currency": "Bitcoin"
        },
        {
          "id": "A-6",
          "amount": "19.990",
          "currency": "AUD"
        }
      ],
      "permitted_currencies": [
        "AUD",
        "USD",
        "JPY",
        "KWD"
      ]
    },
    "type": "http",
    "method": "POST",
    "bodyType": "json"
  },
  "output": {
    "type": "json",
    "example": {
      "limits": {
        "maxEntries": 20000,
        "maxAccounts": 5000,
        "maxFindings": 500,
        "maxLinesPerEntry": 500,
        "maxStatementLines": 20000
      },
      "passed": false,
      "amounts": [
        {
          "id": "A-1",
          "amount": "19.99",
          "currency": "AUD",
          "minor_units": 2,
          "decimal_places": 2,
          "arrived_as_number": false
        },
        {
          "id": "A-2",
          "amount": "1250.5",
          "currency": "JPY",
          "minor_units": 0,
          "decimal_places": 1,
          "arrived_as_number": false
        },
        {
          "id": "A-3",
          "amount": "12.345",
          "currency": "KWD",
          "minor_units": 3,
          "decimal_places": 3,
          "arrived_as_number": false
        }
      ],
      "complete": true,
      "findings": [
        {
          "id": "A-2",
          "code": "AMOUNT_TOO_PRECISE_FOR_CURRENCY",
          "detail": "A-2 is 1250.5 JPY, which needs 1 decimal place(s) and JPY has 0. That currency has no sub-unit at all, so the fraction cannot be paid or recorded.",
          "currency": "JPY"
        },
        {
          "id": "A-4",
          "code": "AMOUNT_ARRIVED_AS_A_NUMBER",
          "detail": "A-4 arrived as a JSON number rather than a decimal string. A binary double cannot hold most two-place decimals exactly, so by the time the value is here the digits may already differ from what was wri...",
          "currency": "USD"
        },
        {
          "id": "A-5",
          "code": "CURRENCY_NOT_A_THREE_LETTER_CODE",
          "detail": "A-5 names the currency \"Bitcoin\", which is not a three-letter uppercase code, so no minor unit can be looked up for it with confidence.",
          "currency": "Bitcoin"
        }
      ],
      "currencies": [
        {
          "amounts": 2,
          "currency": "AUD",
          "minor_units": 2,
          "most_places_used": 2
        },
        {
          "amounts": 1,
          "currency": "JPY",
          "minor_units": 0,
          "most_places_used": 1
        },
        {
          "amounts": 1,
          "currency": "KWD",
          "minor_units": 3,
          "most_places_used": 3
        }
      ],
      "request_id": "example-request",
      "service_id": "currency_minor_unit_audit",
      "assumptions": [
        "Two decimal places is the default because most currencies have two, and the currencies where the answer is zero, three or four are listed in a table published with every response. A caller-supplied ov...",
        "An amount arriving as a JSON number is reported as a finding rather than a nuisance: a binary double cannot hold most two-place decimals exactly, so by the time it arrives the digits may already diffe...",
        "Precision is measured on the value rather than on its formatting, so a trailing zero is not a finding: 19.990 and 19.99 are the same amount and both fit two places."
      ],
      "limitations": [
        "Whether the amounts supplied can be represented in the currency each one names. Not accounting advice: whether an amount is correct, or whether a currency is the right one for a transaction, is outsid...",
        "representable is true only when every amount fitted its currency and every currency was permitted."
      ],
      "observed_at": "2026-10-02T00:00:00.000Z",
      "amount_count": 6,
      "not_examined": [],
      "finding_count": 5,
      "representable": false,
      "currency_count": 5,
      "service_version": "1.0.0",
      "findings_by_code": {
        "CURRENCY_NOT_PERMITTED": 1,
        "AMOUNT_ARRIVED_AS_A_NUMBER": 1,
        "AMOUNT_TOO_PRECISE_FOR_CURRENCY": 2,
        "CURRENCY_NOT_A_THREE_LETTER_CODE": 1
      },
      "minor_unit_table": {
        "BHD": 3,
        "BIF": 0,
        "CLF": 4,
        "CLP": 0,
        "DJF": 0,
        "GNF": 0,
        "IQD": 3,
        "ISK": 0,
        "JOD": 3,
        "JPY": 0,
        "KMF": 0,
        "KRW": 0,
        "KWD": 3,
        "LYD": 3,
        "MGA": 0,
        "OMR": 3,
        "PYG": 0,
        "RWF": 0,
        "TND": 3,
        "UGX": 0,
        "UYW": 4,
        "VND": 0,
        "VUV": 0,
        "XAF": 0,
        "XOF": 0,
        "XPF": 0
      },
      "default_minor_units": 2
    }
  }
}