The wallet address, previously identified as belonging to the German Federal Criminal Police Office (BKA) by Arkham, moved 6,500 BTC to the address “bc1q0unygz3ddt8x0v33s6ztxkrnw0s0tl7zk4yxwd” and then back to itself. Transactional data shows that a tranche of $32 million worth of bitcoin was deposited on crypto exchange Kraken and a similar amount on Bitstamp.