PayYoda is a secure, transparent, and professional decentralized payment application ecosystem. Supported by blockchain technology and utilizing the advantages of blockchain distributed storage, openness, fairness, transparency, traceability, and non tampering, PayYoda will greatly reduce payment costs, reduce intermediate links, and improve circulation efficiency. As the most adaptable decentralized payment infrastructure in the world, PayYoda will integrate industry application systems with blockchain platforms through the combination of DeFi concepts, achieving seamless integration of new technologies with traditional industries and existing application systems, thereby breaking through the technical bottlenecks of traditional payment platforms and implementing its unique payment business logic in blockchain smart contracts....