Background: This research reviews the state-of-the- art blockchain based decentralized identity management for healthcare applications. Authors provide viewpoints on how blockchain based decentralized identity frameworks can be
utilized for virtualized healthcare applications including evaluating identity management systems based on seven criteria: autonomy, authority, availability, approval, confidentiality, tenacity and interoperability.
Seven blockchain-based identity management systems were included and evaluated including: Ethereum, Hyperledger Indy, Hyperledger Fabric, Hedera and Sovrin blockchains