Research on key technologies and development of blockchain

Abstract

Blockchain is considered as a revolutionary technology that has recently fueled extensive attention across many industries. Except for Bitcoin, it has been applied into diverse areas ranging from finance, logistics to food traceability and medical care. It will not take long for blockchain to change the whole society. Although there have been a large number of papers concentrating on blockchain application in a variety of areas, there is lack of a comprehensive survey about blockchain from the perspective of technology and application. To this end, we present a comprehensive overview on the core technologies in blockchain, including cryptography, smart contract and consensus mechanism. In addition, this paper reviews blockchain application and discusses existing problems and bottlenecks in the development of blockchain technology.