A Manifesto for Healthcare Based Blockchain: Research Directions for the Future Generation

Blockchain has gained significant interest because of its inherent characteristics—decentralization, integrity, immutability, interoperability, transparency, and trustworthiness. Additionally, Blockchain has the potential to revolutionize the healthcare sector, ushering in a novel era. This survey presents some novel insights into blockchain-based electronic health record systems. Its aim is to present the research discoveries regarding the present state of blockchain technology in diverse healthcare application contexts. This paper presents a theoretical survey of various reputed research papers and white papers representing successful implementation. It helps the researchers to assess and understand blockchain-enabled healthcare systems properly. This detailed survey analysis presents the contribution of existing works from the perspective of identified challenges and their respective solutions. This paper presents a graphical survey analysis based on research findings, which helps identify some future exploratory directions for proper research work.