论文标题
了解DPOS的分散化：来自数据驱动分析EOSIO的观点
Understanding the Decentralization of DPoS: Perspectives From Data-Driven Analysis on EOSIO
论文作者
论文摘要
最近，许多基于授权的股份证明（DPO）的区块链已被广泛用于分散的应用程序，例如Eosio，Tron和Binance Smart Chain。与传统的基于POW的区块链系统相比，这些系统获得了更高的交易吞吐量，并且非常适合日常应用中的大型场景。权力下放是区块链网络中的关键要素。但是，对于基于DPOS的区块链网络中权力中心化的演变知之甚少。在本文中，我们对DPO的权力下放进行了系统分析，该数据在EOSIO中从135,000,000个块中进行了数据，这是第一个成功的基于DPOS的区块链系统。我们表征了DPO中两个阶段的权力演化，即阻止生产者选举和阻止产量。此外，我们以类似的投票行为研究选民，并提出了发现EOSIO中异常相互投票行为的方法。分析结果表明，我们的方法可以有效地捕获系统中的权力下放化演化和异常投票现象，这对其他基于DPOS的区块链也具有参考意义。
Recently, many Delegated Proof-of-Stake (DPoS)-based blockchains have been widely used in decentralized applications, such as EOSIO, Tron, and Binance Smart Chain. Compared with traditional PoW-based blockchain systems, these systems achieve a higher transaction throughput and are well adapted to large-scale scenes in daily applications. Decentralization is a key element in blockchain networks. However, little is known about the evolution of decentralization in DPoS-based blockchain networks. In this paper, we conduct a systematic analysis on the decentralization of DPoS with data from up to 135,000,000 blocks in EOSIO, the first successful DPoS-based blockchain system. We characterize the decentralization evolution of the two phases in DPoS, namely block producer election and block production. Moreover, we study the voters with similar voting behaviors and propose methods to discover abnormal mutual voting behaviors in EOSIO. The analytical results show that our methods can effectively capture the decentralization evolution and abnormal voting phenomena in the system, which also have reference significance for other DPoS-based blockchains.
