Resolves Yes if BTC-USD on Coinbase prints strictly below $80,000 at any time in January 2026(PT: Jan 1, 12:00 AM → Jan 31, 11:59 PM). Any Coinbase tick/trade below $80,000 counts—including wicks or momentary lows visible in Coinbase’s trade history. Otherwise resolves No. Source: Coinbase official historical trade data.