YU Token is a blockchain-based payment solution designed to empower small and medium-sized enterprises and consumers through fast, low-cost and decentralized transactions. The project is built on the Solana blockchain and provides high-speed processing and extremely low fees, making it ideal for practical scenarios such as retail payments, loyalty rewards and location services. In addition, the project also integrates DePIN (Decentralized Physical Infrastructure Network) to connect the physical environment with blockchain technology to achieve functions such as QR Code payment and smart device integration.