Bitcoin’s mining difficulty just logged its second sizeable cut of 2026, easing conditions for remaining miners as competition from artificial intelligence data centers rises.
Bitcoin’s mining difficulty fell by around 7.7% at the latest adjustment on March 20 to 133.79 trillion at block 941,472, the sharpest drop since February, according to CoinWarz data.
The latest move takes difficulty down from around 145 trillion in mid-March and roughly 148 trillion at the start of the year. A lower difficulty means it takes less computational work to earn the same block reward, slightly improving revenue per unit of hashrate for firms that stay online.
The adjustment followed slower-than-target block production over the prior 2,016 blocks. CloverPool data showed average block times at about 12 minutes 36 seconds, well above Bitcoin’s 10-minute target, forcing the network to recalibrate lower.
