This week on #BlockchainCentral:br - Facebook unveils the #Libra project and their Calibra subsidiarybr - VISA plans to use a DLT solution to enter the $125tn B2B transaction marketbr - #XRP will be used in a new partnership between Ripple and Moneygrambr - Bitcoin soars to a 17 month ATH of ~$13,800br br June was a huge month for cryptocurrency and blockchain, so we've put all the biggest stories together in one video for you to catch up.