VIC (Vital Index Tracing Chain) is a distributed medical ecosystem based on blockchain technology. Different from the traditional centralized medical system, VIC utilizes blockchain technology and token economic model to realize a high-availability, safe and efficient global comprehensive medical service system, so that every participant can benefit from the medical services built by VIC benefit from the ecology. By introducing and integrating multi-party participants in the medical and health industry, including hospitals, clinics, pharmaceutical companies, research institutes, insurance companies, etc., a reasonable token incentive system is established, and the transparency and security features of the blockchain are used for multi-party data authorization sharing. , so that every user can enjoy global high-quality medical and financial services, and at the same time, service providers can also reach the most matching customer groups, thereby promoting the healthy development of the entire VIC chain ecology.