The study of blockchain technology may focus on the fundamentals of distributed ledgers and how to implement it in the fields of finance, real estate, logistics, and e-commerce. The focus can include the history of blockchain, why it is important today and how it can revolutionize the future of the financial industry.

The PhD is a doctoral degree, specifically called a "doctor of philosophy" degree. This is misleading because PhD holders are not necessarily philosophers (unless they earned their degree in philosophy!). That said, PhD recipients are able to engage in thought experiments, reason about problems, and solve problems in sophisticated ways.