Golden Finance reports that American blockchain payment company Ripple Labs has stepped up testing of its stablecoin RLUSD. Ripple Stablecoin Tracker data shows that Ripple is conducting two simultaneous tests of minting and transferring money on the XRP Ledger protocol, which is the first RLUSD test disclosed so far this month. Over the past few months, Ripple Labs has been testing RLUSD in an effort to join the rapidly growing stablecoin ecosystem. The latest minted XRP Ledger Index is 146 and contains 9,999,700 RLUSD.