Abstract

The health problems of this world's population are universal. Everyone nowadays values protecting their personal health information. No one likes to let people in on their vulnerabilities. Electronic Health Records (EHR) were developed as a solution to this issue. However, several writers have pointed out that there are drawbacks with EHR, including as costs, data loss, security threats, and others. In this study, we will explore how blockchain may replace EHR and other healthcare record keeping methods. Blockchain is a distributed ledger that records and verifies all transactions via the use of hash values and referencing of prior blocks. Since blockchain is becoming more popular in the medical industry. Blockchain ensures the confidentiality, availability, auditability, and manageability of health records conveniently. Keyword Blockchain, Smart contracts, PHR (Personal Health Records), healthcare, access control.

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