Solutions to Scalability of Blockchain: A Survey Article Swipe

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Blockchain Scalability Cryptocurrency Computer science Database transaction Proof-of-work system Computer security Distributed computing Database

Qiheng Zhou , Huawei Huang , Zibin Zheng , Jing Bian ·

YOU? · · 2020 · Open Access · · DOI: https://doi.org/10.1109/access.2020.2967218 · OA: W3000385461

Blockchain-based decentralized cryptocurrencies have drawn much attention and been widely-deployed in recent years. Bitcoin, the first application of blockchain, achieves great success and promotes more development in this field. However, Bitcoin encounters performance problems of low throughput and high transaction latency. Other cryptocurrencies based on proof-of-work also inherit the flaws, leading to more concerns about the scalability of blockchain. This paper attempts to cover the existing scaling solutions for blockchain and classify them by level. In addition, we make comparisons between different methods and list some potential directions for solving the scalability problem of blockchain.