Bitcoin (BTC) mining difficulty is increasing by roughly 11% on Jan. 9, according to data from BTC.com. This marks the biggest increase in nearly four months that will put the metric over 20 trillion for the first time ever.
"Hashrate is on a tear!" commented popular pseudonymous Bitcoin trader hodlonaut three days ago. "When difficulty readjusts in 3 days, it will crush through 20T for the first time in Bitcoin history."