[Retracted] Blockchain in Secure Healthcare Systems: State of the Art, Limitations, and Future Directions

Table 3

Storing patient’s data.

Name	Location	What they do
FACTOM	Austin, Texas	It develops technologies which assist the healthcare system in keeping personal electronic documents on the industry’s blockchain network, which is exclusively available to doctors and healthcare professionals. Physical documents can be outfitted with unique alternative for conventional safety circuits that save patient health information as private data which only allow users to visit. It secures electronic medical files by employing blockchain-based system.
MEDICALCHAIN	London, England	Its blockchain maintains data reliability of medical files while having a new point of truth. Clinicians, hospitals, and laboratories can all require patient records that are traceable and the patient’s condition is safeguarded from prying eyes. Its blockchain-based infrastructure keeps records of origination and safeguards patient identification.
GUARDTIME	Irvine, California	It is assisting healthcare community organizers in using blockchain into their information security strategies. The organization was instrumental in the implementation of blockchain in Estonia’s medical systems, and in recent times it secured an agreement with such a private health professional in the United Arab Emirates to introduce data protection systems to it. It makes use of blockchain for network security domains such as healthcare.