Proton (XPR) traded 1.5% lower against the U.S. dollar during the twenty-four hour period ending at 0:00 AM ET on May 31st. One Proton coin can currently be purchased for $0.0010 or 0.00000004 BTC on popular cryptocurrency exchanges. During the last week, Proton has traded down 0% against the U.S. dollar. Proton has a total […]