{"currency":"ETH","spot":1841.2833333333335,"total_contracts":56,"exchanges":{"deribit":{"count":12},"okx":{"count":6},"bybit":{"count":38}},"summary":{"spot":1841.2833333333335,"regime":"CONTANGO","n_maturities":12,"near_expiry":"2026-07-24","near_carry_pct":5.27,"far_expiry":"2027-06-25","far_carry_pct":3.33,"carry_slope":-1.94},"timestamp":"2026-07-17T23:32:32.178743+00:00","preview":true,"signed":false,"note":"Preview only. Paid endpoint returns full per-expiry curve with per-exchange breakdown. Data cached — may be up to 60 minutes old.","preview_cached":true,"cache_max_age_minutes":60}