HOTCS is a big health intelligent ecological public chain aimed at utilizing blockchain technology to record personal health data, create personal health records, and develop safe and controllable health applications. HOTCS hopes to use blockchain technology to integrate personal health data and health diagnosis and treatment data and digitize them, and achieve the security, privacy, accuracy, and scalability of personal health data through encryption technology. Make full use of smart contracts, create personal health data NFTs, and build an integrated digital health ecosystem that integrates individuals, medical institutions, artificial intelligence, insurance, and other companies to operate and maintain. This will make participants' personal health data safer, more reasonable, and accurately applied in medical security, promoting the development of the health and medical industry and fissuring its industrial value....