Survey of Blockchain Methodologies in The Healthcare Industry

Blockchain has been the focus of the research area in the past few years. It is considered the foundation of cryptocurrencies such as Bitcoin and Ethereum. Decentralization is the main feature of Blockchain. Blockchain provides a higher level of security and scalability. Major industries have started to consider blockchain on their platforms such as the healthcare industry which uses the blockchain to secure the patients' data, make them anti-tampering and keep track of their Electronic Health Records (EHRs). The work in this paper provides a state of art of different blockchain types and consensus mechanisms. Also, the paper recommends some guidelines to select the appropriate blockchain type, consensus mechanism and blockchain interoperability method that fulfills the healthcare industry requirements.