In its most recent update, Bitcoin's mining difficulty dropped by just over 11%, the biggest single decline since the network outage brought on by China's mining ban in 2021.
According to CoinWarz data, the change was implemented at block 935,429, reducing the overall network difficulty to 125.86 trillion. Since then, average block times have decreased to about 9.47 minutes, which is less than the network's 10-minute goal.
This magnitude of downward difficulty adjustments is rare and typically corresponds to an abrupt hash rate loss. Due to miners ceasing operations or moving equipment abroad as a result of China's crackdown on cryptocurrency mining in 2021, there were several significant drops in difficulty. A few of those adjustments were more than 25%.
The most recent drop comes after a steep decline in the cryptocurrency market that decreased mining profitability and brief disruptions that affected miners in the United States. Some facilities were forced offline by winter storms that hit parts of the United States, which further decreased the active hash rate during the adjustment period.
According to current estimates, the decline might not last long. According to recent block data, difficulty is expected to increase once more around February 20. If miners rejoin the network, this increase could reach over 5%.
Every 2,016 blocks, Bitcoin's mining difficulty adjusts to maintain block production at a pace that is close to its target. The protocol reduces the difficulty to restore equilibrium when mining power rapidly drops.
