A Russian engineer has been fined for using one of the country's most powerful supercomputers to mine Bitcoin at a top-secret nuclear lab in the closed city of Sarov. Several scientists at the Sarov nuclear center 400 kilometers from Moscow were arrested last year on suspicion of using a workplace supercomputer to mine the cryptocurrency. The institute, where the first Soviet nuclear weapon was produced in 1949, is home to some of Russia’s most powerful supercomputers. The Sarov city court has fined Denis Baykov, an employee at the nuclear center, 450,000 rubles ($7,000) for attempting to mine Bitcoin on one of the ... (full story)