An overview on cross-chain: Mechanism, platforms, challenges and advances

【Author】 Ou, Wei; Huang, Shiying; Zheng, Jingjing; Zhang, Qionglu; Zeng, Guang; Han, Wenbao

【Source】COMPUTER NETWORKS

【影响因子】5.493

【Abstract】After years of in-depth development of blockchain, various blockchains with different characteristics and suitable for different application scenarios coexist in large numbers. Due to the isolation of blockchains and the high degree of heterogeneity between chains, value transfer and data communication between existing blockchains are facing unprecedented challenges, and the phenomenon of value isolated island is gradually emerging. The cross-chain technology of blockchain is an important technical means to realize the interconnection of block -chains and improve the interoperability and scalability of blockchains. In this paper, the development and application of blockchain cross-chain technology are studied, the background and significance of cross-chain technology are described, the research status of cross-chain technology is expounded, the current mainstream cross-chain technologies and cross-chain projects are introduced, the mentioned cross-chain technologies and cross-chain projects are analyzed and compared. In addition, this paper also summarizes the difficulties existing in the current cross-chain technology and provides solutions for reference, so as to lead to the discussion of the development trend of cross-chain technology, and finally complete the summary of the research content of the full text and the prospect of cross-chain technology. It is hoped that the relevant summary results can help relevant researchers and practitioners quickly grasp the research progress in the field of blockchain interoper-ability, and obtain relevant knowledge and application methods in this field.

【Keywords】Cross -chain; Interoperability; Value transfer; Notary; Sidechain; Hash -locking

【发表时间】2022 DEC 9

【收录时间】2022-11-30

【文献类型】综述

【主题类别】

区块链技术-核心技术-跨链与多链