Blockchains have received much attention recently since they provide
decentralized approaches to the creation and management of value. Many banks,
Internet companies, car manufacturers, and even governments worldwide have
incorporated or started considering blockchains to improve the security,
scalability, and efficiency of their services. In this paper, we survey
blockchain applications in different areas. These areas include cryptocurrency,
healthcare, advertising, insurance, copyright protection, energy, and societal
applications. Our work provides a timely summary for individuals and
organizations interested in blockchains. We envision our study to motivate more
blockchain applications.Comment: Published in Proceedings of the 2018 International Conference on
Blockchain Technology and Application (ICBTA