Resolves Yes if BTC-USD on Coinbase prints strictly below $90,000 at any time in November 2025 (PT: Nov 1, 12:00 AM → Nov 30, 11:59 PM). Any Coinbase tick/trade below $90,000 counts—including wicks or momentary lows visible in Coinbase’s trade history. Otherwise resolves No. Source: Coinbase official historical trade data.