A System for Decentralized and Securely Sharing Patient Data using Blockchain Technology

In today's digital age, the repository and sharing of patient health records is of utmost significance. However, it can be challenging to maintain the privacy of this data, as its daily transactions carry the threat of privacy breaches. Furthermore, some have raised concerns regarding the performance and privacy of blockchain-based applications, which are often used to store health data. To address these matters, this study offers an immune and privacy-conserving patient data-sharing system enabled by the blockchain technique. To assure the utmost security of patient health records stored on the blockchain, this design employs a cutting-edge access controller based on hash-256, including transaction signatures. Additionally, a consensus policy is implemented to safeguard sensitive information further. Patient health data is stored safely and securely by implementing these measures. The use of blockchain technology also assures the privacy, integrity, and scalability of health records. This study evaluates the data transaction performance while maintaining confidentiality in handling patient health records. It exhibits the average transactional time and allowable latency for accessing such health records.