Sentinel Protocol (CURRENCY:UPP) traded down 3.7% against the dollar during the 24 hour period ending at 0:00 AM ET on February 23rd. In the last seven days, Sentinel Protocol has traded 20.5% lower against the dollar. One Sentinel Protocol token can currently be bought for about $0.0135 or 0.00000138 BTC on cryptocurrency exchanges including GDAC, […]