Bitcoin Miners Navigate Wild And Extreme World Of Power Hunting A Bitcoin mining rig is usually made up of thousands of computers, specially built to run the complex calculations that maintain the cryptocurrency's network Updated: July 14, 2021 9:35 am IST Miners also want confidence they won't wake up to news that their business has been outlawed again One weekend in late June, hundreds of gloomy Bitcoin miners crowded into a luxury hotel in Western China. They had a big problem: Just weeks earlier, the Chinese government banned cryptocurrency mining over concerns about illicit coal mining and underlying financial risks. Now they had to figure out how to move millions of computers out of the country.