Cardano's ADA price has surged over 20% in the last 7 days.Cardano founder expresses optimism about growth and potential integration of Bitcoin DeFi through BitcoinOs Network.New DeFi project Remittix (RTX) attracts investors with its blockchain-based crypto-to-fiat payment platform.Market watchers predict further rallies for Cardano, with price potentially replicating the 2021 bull season.