Decentralized USD is a digital currency that operates on blockchain technology and is not under the control of any one bank or government. Its purpose is to maintain the value of the US Dollar, but transactions are completely transparent, secure, and borderless. Decentralized USD operates through smart contracts, where there is no third party involved, resulting in lower fees and higher speed. This system provides users with greater financial freedom and is used for payments, savings, and lending within the DeFi (Decentralized Finance) ecosystem.