Bitcoin mining has totally recovered from the Chinese crypto crackdown that took more than half the world's miners offline virtually overnight earlier this year. The recovery is measured is by looking at hashrate, an industry term used to describe the computing power of all miners in the bitcoin network. China had long been the epicenter of this industry, with past estimates indicating that 65% to 75% of the world's bitcoin mining happened there. But after Beijing effectively banished the country's cryptocurrency miners in May, more than 50% of bitcoin's hashrate dropped off the global network. As of Friday, data from…