论文标题
地理分布和采矿池对区块链的影响：以太坊的研究
Impact of Geo-distribution and Mining Pools on Blockchains: A Study of Ethereum
论文作者
论文摘要
鉴于无许可区块链的巨大采用和经济影响，基础系统的复杂性以及它们运营的对抗性环境的复杂性，正确研究和了解这些系统的新兴行为和特性是至关重要的。我们从几个地理位置分散的观察点对以太坊网络进行详细的一个月研究中描述了我们的经验。我们利用多个地理位置点来评估以太坊的关键支柱，即地理分散，网络效率，区块链效率和安全性以及采矿池的影响。除其他新发现外，我们还确定了以前没有证件的自私行为形式，并表明强大的采矿池的普遍性加剧了对块传播延迟的地理影响。此外，我们提供一组开放的测量和处理工具以及收集的测量数据集，以促进对理解无许可区块链的进一步研究。
Given the large adoption and economical impact of permissionless blockchains, the complexity of the underlying systems and the adversarial environment in which they operate, it is fundamental to properly study and understand the emergent behavior and properties of these systems. We describe our experience on a detailed, one-month study of the Ethereum network from several geographically dispersed observation points. We leverage multiple geographic vantage points to assess the key pillars of Ethereum, namely geographical dispersion, network efficiency, blockchain efficiency and security, and the impact of mining pools. Among other new findings, we identify previously undocumented forms of selfish behavior and show that the prevalence of powerful mining pools exacerbates the geographical impact on block propagation delays. Furthermore, we provide a set of open measurement and processing tools, as well as the data set of the collected measurements, in order to promote further research on understanding permissionless blockchains.
