Rate record

The date of the rate

Base currency code

Quote currency code

Exchange rate value

Per-provider rates for this pair. Present only when `expand=providers` is set. Each entry has the provider's observation date and published rate (rebased to the row's base). Entries with `excluded: true` did not contribute to the blended `rate` — either flagged as outliers by the consensus filter, or overridden by a currency peg. Omitted on synthesized peg rows where no provider published the quote.