{
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "$id": "https://pmf.finance/peril-markets/downloads/rhine-ladder.schema.json",
  "title": "Provisional Rhine low-water duration ladder",
  "type": "object",
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    "observation_period": {"type": "string"},
    "measurement": {"type": "string"},
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    "operator": {"const": ">="},
    "weights_percent": {"type": "array", "prefixItems": [{"const": 10}, {"const": 10}, {"const": 10}, {"const": 10}, {"const": 10}, {"const": 10}, {"const": 10}, {"const": 10}, {"const": 10}, {"const": 10}], "minItems": 10, "maxItems": 10},
    "basket_maximum_percent": {"const": 100},
    "currency": {"const": "EUR"},
    "unit_payout": {"const": 1},
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    "additionalProperties": false
  }
}