自2020年5月20日，比特币挖矿难度下降了6％，至15.14 T，而一周前，一些业内人士估计本次难度调整会下降2％。4月，比特币挖矿难度从13.91 T增加到14.72 T，然后增加到15.96T。
Since May 20, the difficulty of mining bitcoin has dropped 6% to 15.14t, compared with a week ago when some in the industry estimated the difficulty would drop 2%. In April, the difficulty of bitcoin mining increased from 13.91 T to 14.72 T, then to 15.96T.
The last time the index fell was on March 26th, when it fell by the second-highest 16%, as many miners shut down their machines after the market crashed on March 12th.
This time, the BTC hash rate, or the computing power of the network, fell after a third bitcoin halved, reducing miners' earnings. However, it seems that after an initial drop in difficulty, total computing power (hash rate) is bottoming out. In either case, depending on the current state of the network, mining is expected to get harder again by more than 6 per cent within 15 days, according to the pool.