ARDR is available on GJ.com on February 3, 2019.
Opened transaction pairs: ARDR/BTC
ARDR is made from the Ardor parent chain, which is a service system including all the child chains and transactions. Some transactions happens on the parent chain, such as trading ARDR. In order to keep parent chain stable and make block not to be overstaffed, many features is disabled. ARDR’s main chain adopts 100% POS mechanism. Which means it doesn't need miners, and new token can not be created.