Bitcoin Mining Difficulty Soars 15% to 144.4T as Hashrate Recovers to 1 ZH/s

According to developer Mononaut, Bitcoin's mining difficulty has jumped by about 15% to 144.4 trillion, marking one of the largest increases on record and fully reversing the previous epoch's sharp downward adjustment. As of February 20, 2026, this rebound in hashrate to 1 ZH/s is pressuring miners in the short term while Bitcoin trades around $68,104.38 with rising whale accumulation.