The Federal Reserve chair said "the more direct route" would be to regulate stablecoins.
Brian Armstrong is listed on the central bank's calendar, public records show.
Federal Reserve Chairman Jerome Powell testified before the U.S. Senate, about inflation and the possible rollout of a digital dollar.
While a Senate Banking Committee hearing ostensibly focused on central bank digital currencies, bitcoin’s role in the ecosystem drew much of the attention.
Maintaining users' privacy is a key design focus, according to Massad. "We're not China."
