[CleanSpark Mined 671 Bitcoins in May, Sold 654] Foresight News reports that Bitcoin mining company CleanSpark released its unaudited operational data for May. The company mined 671 Bitcoins during the month and sold 654 (including 404 through spot sales and 250 through warrant exercises), with an average selling price of approximately $79,934. As of the end of May, the total Bitcoin holdings increased to 13,470.