Secure Medical Data Sharing Through Blockchain and Decentralized Models

The global health system has been strongly impacted by the events caused by the Covid-19 pandemic, highlighting and amplifying several critical issues. To contrast a global pandemic, it is necessary to have tools that can offer an integral vision of the situation to act in a timely manner on any possible case. In this regard, technologies based on decentralized systems, such as Blockchain, can be helpful, as they are global, real-time, and can be implemented to respect people's privacy. This work aims to investigate the use of decentralized networks to develop a system that can solve the problem of management and collaborative analysis of sensitive data. A general framework has been proposed that is mainly dedicated to healthcare organizations, such as hospitals and research centres, which first had to face the difficult situation caused by the Covid-19 pandemic. It has been highlighted how decentralized systems can effectively improve communications between these entities, promoting the fair exchange of knowledge in real-time without compromising citizens’ privacy.