service based on biometric data that started with the belief that "the world is made safer and healthier through the eyes." Because the iris has a lot of health information, it uses this iris information to measure and prevent the health of the customer's life cycle from time to time so that they can live a "quality of life healthy and long" rather than just a long life. Sensitive personal healthcare information has been blockchain to eliminate anxiety factors such as personal information leakage. Customers can now measure and manage their own health in the ecosystem of the IRIS Chain and lead a high-quality, healthy, long-lasting life with other customers. IRIS services can accurately prevent the health of customers through proprietary iris analysis technology and machine learning (A.I learning). This technology is designed to provide optimal services to help customers manage their health on their own by providing continuous care and additional services, rather than just one-time information provision of information. Blockchain and storage of this continuously managed data can provide security benefits, and a unique ecosystem platform that both platforms and customers operate together by providing separate tokens for customers who provide and use information.