The vision of the HCE platform is to combine the blockchain technology to create an innovative digital healthcare ecosystem that combines blockchain with medical big data to address many of the current problems in the medical big data industry. The HCE platform gives users the highest level of authority to manage their own data, allowing users to control their own medical information, including who has access, what information to access and the time limit for access, and the entire process is based on security and transparency. To avoid unauthorized access, use, disclosure,destruction, modification, destructi.