Different mechanism, Bitcoin's difficulty adjusts based on how quickly blocks are mined so that on average 1 block is mined every 10 minutes. The protocol adju

Different mechanism, Bitcoin's difficulty adjusts based on how quickly blocks are mined so that on average 1 block is mined every 10 minutes. The protocol adjusts every 2016 blocks, if it takes longer than two weeks (20160 minutes) to mine the 2016 blocks then the difficulty decreases, if it takes less than two weeks to mine 2016 blocks then the difficulty increases.