A French national has been sentenced to federal prison after pleading guilty to using cryptocurrency to facilitate drug deals on the dark web.

Gal Vallerius was sentenced by U.S. District Judge Robert N. Scola Jr. to 20 years in prison on Monday. The proceedings, which took place in the Wilkie D. Ferguson Jr. U.S. Courthouse, followed Vallerius’ entry of a guilty plea on charges of conspiracy to distribute narcotics as well as conspiracy to commit money laundering in June.