Prosecutors also took 17 of his ATMs and about $23,000 in cash, according to a statement from the Justice Department.

Kais Mohammad, 37, who also went by “Superman29,” was sentenced Friday by a federal judge in Santa Ana. He pleaded guilty last year to operating an unlicensed money transmitting business, money laundering and failing to maintain an effective anti-money laundering program, according to a statement by the U.S. attorney’s office in Los Angeles.

In an emailed statement, Mohammad’s lawyers, Michael A. Goldstein, and Hagop Kuyumjian, said they thank the court for recognizing the circumstances that reduced his prison time “significantly below the government’s recommendation.”

Mohammad was required to forfeit 18.4 Bitcoin and 222.5 Ethereum. Bitcoin is currently valued at about $37,500; Ethereum at $2,500. The U.S. has seized cryptocurrency through forfeiture for years, periodically conducting auctions to sell it off.