Bitcoin mining difficulty declined 7.76% to 1.3379 quadrillion, marking the second-largest decrease this year. Previously, Bitcoin mining difficulty had dropped significantly by 11.16% in early February. This decline reflects extended average block times and a structural shift, as major listed miners including Core Scientific, Bitdeer, and Riot Platforms are moving infrastructure from Bitcoin mining to more profitable AI workloads. Currently, Bitcoin network hashrate remains below the 2025 peak, while current hashrate prices are approximately $32/hour/day, approaching or falling below the break-even point for many operators.