区块链技术与应用前瞻综述

Blockchain is a decentralized,untrustworthy distributed database technology.The database is collectively maintained by all the nodes involved in the system,and has the features of decentralization,tamper-resistance,transparentness and security.The emergence of blockchain technology thanks to the Bitcoin applications.Blockchain is the underlying technique support of Bitcoin system and is the fundament of the Bitcoin system.Since Blockchain technology is a promising technology,the key technologies,components,principles,limitations,applications and prospect were introduced,and the related research issues was discussed.