Covid-19 Contact Tracing and Vaccine Validation Using Blockchain Technology

The fourth industrial revolution (Industry 4.0) has prompted new and innovative solutions that are reliant on Artificial Intelligence (AI) and contemporary technological advancements. Secure, intelligent, and on-demand healthcare services for patients is one of the core pillars of Industry 4.0. Patient medical data security and privacy is a crucial part of electronic healthcare systems. Disease diagnosis and treatment are highly dependent on the authenticity and security of patient data, both when stored and communicated. Blockchain technology plays a vital role in transaction authentication and secure decentralized immutable data storage. With that said, in this paper, we present an interactive healthcare information system that enables COVID-19 contact tracing and vaccine certificate validation for users. The solution uses a blockchain technique to validate the certificates. The implementation and evaluation details of the system are presented together with result findings.