The most common method of payment for purchase is cash deposit. BitStamp is one of the world’s largest and most well-known Bitcoin exchanges. On the other hand, the five most expensive states to mine Bitcoin in the U. Government Accountability Office reported that the pseudonymity in VCs makes it difficult for the government to detect money laundering and other financial crimes, and it may be necessary to rely on international cooperation to address these crimes. However, the exchange rate against other currencies can be very volatile. Another payment option for US customers is using a connected bank account. Otherwise all purchases cost 1.