An overview of blockchain technologies: Principles, opportunities and challenges

Abstract

Blockchain is a recently emerging technology that has the potential to revolutionize the way society interacts and trades between each other. The main advantage this technology provides is its ability to exchange transactions without relying on a trusted third party entities of any means. It can also provide data integrity, in-built authenticity and user transparency. Blockchain is envisioned to be the new internet on which many revolutionary applications will be based. In this work, we provide an overview of blockchain technologies including their principles, opportunities and challenges ahead.