Ulbricht, known by the pseudonym “Dread Pirate Roberts,” founded Silk Road in 2011. Its services were available globally and could be accessed via a Tor browser, which protects users’ anonymity.

Ulbricht was given two life sentences, plus 40 years for running a site that allegedly facilitated $183m in drug sales.

President Trump announced Tuesday that he signed a full pardon for Ross Ulbricht, the Silk Road founder who was sentenced to ...