@type t() :: %Sidereon.GNSS.Distribution.ProductIdentity{
  analysis_center: String.t(),
  campaign: String.t(),
  date: Date.t(),
  family: String.t(),
  filename_version: non_neg_integer(),
  format: String.t(),
  format_version: String.t() | nil,
  issue: String.t(),
  official_filename: String.t(),
  prediction_horizon_days: non_neg_integer() | nil,
  publisher: String.t(),
  sample: String.t(),
  solution_class: String.t(),
  span: String.t()
}