RESS: A Reliable and Effcient Storage Scheme for Bitcoin Blockchain Based on Raptor Code

【Author】 Shi Dongxian; Wang Xiaoqing; Xu Ming; Kou Liang; Cheng Hongbing

【Source】CHINESE JOURNAL OF ELECTRONICS

【影响因子】1.019

【Abstract】The Bitcoin system uses a fully replicated data storage mechanism in which each node keeps a full copy of the blockchain. As the number of nodes in the system increases and transactions get more complex, more and more storage space are needed to store block data. The scalability of storage has become a bottleneck, limiting the practical application of blockchain. This paper proposes a node storage scheme, called RESS, to integrate erasure coding technology into the blockchain to encode multiple blocks. Under the proposed block grouping method, nodes can reduce the times of coded block decoding. In addition, the coding scheme based on Raptor codes proposed in this paper has linear coding and decoding complexity. The rateless feature of Raptor code helps to achieve high decentralization and scalability of the Bitcoin network. RESS ensures data availability, efficiency and blockchain robustness based on achieving storage space scalability. Experimental results show that the proposed scheme reduces the storage requirements of nodes by nearly an order of magnitude.

【Keywords】Bitcoin blockchain; Storage scalability; Erasure coding; Raptor code

【发表时间】2023 MAY

【收录时间】2023-09-25

【文献类型】实验仿真

【主题类别】

区块链技术-核心技术-存储策略