The YKChain project mainly serves large-scale health and wellness projects. The main purpose is to solve the difficulties encountered by health care enterprises in the process of business development, such as difficulty in user data statistics, poor payment methods, duplicate payments, and cross regional consumption. This project uses DApp to provide real-time and reliable data support for the platform, so that enterprises can reasonably collect Health data that customers care about in real time and feed it back to users, issue tokens, solve repeated payments, cross regional consumption and other problems, so that users can realize the convenience of one-time payment nationwide....