
Bitcoin's mining difficulty saw a sharp 7.76% drop to 133.79 trillion, the second-largest decline of 2026, as hashrate slipped below 1 ZH/s due to rising energy costs and miner shifts to AI. Block times exceeded targets, triggering the adjustment. Ne

Bitcoin mining difficulty adjusted downward by 7.76% on March 21, 2026, marking the second-largest drop this year as network hashrate fell below 1 ZH/s. Rising energy prices from global tensions and miner shifts to AI/HPC are key factors. Strong oper
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Bitcoin network saw a sharp 7.76% difficulty drop on March 20, 2026, as hashrate fell to ~943 EH/s. Rising energy prices from Iran tensions and miners shifting to AI hosting intensify pressures post-halving.
Bitcoin's network hashrate has climbed back to 1.15 ZH/s following a sharp 7.8% difficulty drop earlier this month. Top pools like Foundry lead with 29% share as miners adapt to low hashprices and pivot toward AI compute.