TOKYO -- The U.S. is now the leading country for bitcoin mining, doubling its share in the energy-intensive activity in the four months since China began a cryptocurrency crackdown, according to researchers that track mining activity.
Researchers at the Cambridge Center for Alternative Finance found that the U.S. share of average monthly global hashrate -- the computational power used to mint new bitcoin and process transactions -- grew to 35.4% in August from 16.9% in April.
