Bitcoin rose 6.54% to $57,098.08 on Friday, adding $3,504.11 to its previous close. Bitcoin, the world’s biggest and best-known cryptocurrency, is up 105.9% from the year’s low of $27,734 on Jan. 4. It is down 12% from the year’s high of $64,895.22 on April 14. Ether , the coin linked to the ethereum blockchain network, […]