USDJs are issued by decentralized smart contracts in the wavefield network, and anyone can issue usDJs by mortgating TRX. When USDJ is launched, the price of USDJ is kept at parity with the US dollar through a collateralized bond bond (CDP) and automated feedback mechanisms, thus floating as freely as any other digital asset. USDJ Stable Currency is a digital currency backed by mortgage assets whose price remains stable against the DOLLAR. USDJ will become a necessity in tron DeFi ecology.