The top executive of a New York City-based Bitcoin company is scheduled to plead guilty Thursday to federal criminal charges.
The case against Charlie Shrem of Manhattan grew from the government's shutdown of the black market website Silk Road.
Shrem was chief executive officer of BitInstant and vice chairman of a foundation that promotes the Bitcoin currency system when he was arrested earlier this year.
He was accused of conspiring to sell more than $1 million in Bitcoins to criminals who wanted to sell narcotics on Silk Road between December 2011 and last October.
Authorities have said Silk Road's San Francisco operator generated more than $1 billion in illicit business from January 2011 through last September on the website.
It used Bitcoin, a tough-to-track digital currency, before being shut down.