E-CARE (EasyCare) brings together leading technical professionals in the blockchain industry, as well as experts from various fields in the healthcare sector. Through comprehensive and in-depth market analysis, a new ecosystem of smart contracts for the healthcare industry has been crafted, based on market needs. E-CARE fully leverages the characteristics of blockchain, such as high-trust consensus, low-cost security, distributed ledger, and efficient multi-center linking. By employing a novel smart contract architecture design, E-CARE focuses on data exchange and accelerating information flow within the healthcare industry. It innovatively enables trusted exchange and verification of healthcare data without compromising data ownership.