Odaily Planet Daily News: According to the official announcement, BitMart will list Ardor ($ARDR) at 13:00 on May 19 (UTC+8). The ARDR/USDT trading pair will be launched. Ardor is a proof-of-stake (PoS) based multi-chain blockchain platform featuring a unique parent-child chain architecture. The security of the entire network is provided by the Ardor main chain, while the interoperable child chains possess all the rich functionalities.