{"currency":"BTC","spot":81396.69666666667,"total_contracts":26,"exchanges":{"deribit":{"count":12},"okx":{"count":6},"bybit":{"count":8}},"summary":{"spot":81396.69666666667,"regime":"CONTANGO","n_maturities":12,"near_expiry":"2026-10-23","near_carry_pct":8.22,"far_expiry":"2027-09-24","far_carry_pct":5.5,"far_oi":8196426.81,"far_exchange_count":3,"carry_slope":-2.72},"timestamp":"2026-10-18T00:20:48.743087+00:00","preview":true,"signed":true,"note":"Preview only. Paid endpoint returns full per-expiry curve with per-exchange breakdown.","canonical":"v1|TERM-STRUCTURE-PREVIEW|BTC|2026-10-18T00:20:48.743087+00:00","signature":"c3b875b2d9babf3491c30a90a74339d837189ea656f90c1c2d26d6f0f04b0d8dba158bffdcd99f57e0f5b9369fe8c603e73c92c674c8318fbf258fe228e47d08","digest":"fa64f86783b896d45c171f20be1df10909c8f4fde4f5895af0cf68ab18e97c33","pubkey":"7ab07fbe7d08cd16823e5eb0db0e21f3f38e9366d5fd00d14e95df0fb9b51a1a","preview_cached":true,"cache_age_minutes":43}