地理分布与矿池对区块链的影响：以 Ethereum 为例的研究
Impact of Geo-distribution and Mining Pools on Blockchains: A Study of Ethereum
AI总结：
本文从多个地理观测点对 Ethereum 网络进行为期一个月的研究，评估其地理分散性、网络效率、安全性及矿池影响，发现了未记录的自私行为，并证实强大矿池加剧了区块传播延迟，同时开源了测量工具与数据集。
摘要：
鉴于无许可区块链的广泛采用与经济影响，其底层系统的复杂性及所处的对抗环境，深入研究并理解这些系统的涌现行为与属性至关重要。我们描述了从多个地理分散的观测点对 Ethereum 网络进行为期一个月的详细研究经验。我们利用多个地理观测点来评估 Ethereum 的关键支柱，即地理分散性、网络效率、区块链效率与安全性，以及矿池的影响。在其他新发现中，我们识别出此前未记录的自私行为形式，并表明强大矿池的盛行加剧了地理分布对区块传播延迟的影响。此外，我们提供了一套开源的测量与处理工具，以及收集到的测量数据集，以促进对无许可区块链的进一步研究。
英文摘要：
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.
机构、总结、中文摘要均由AI分析而来，可能存在错误，请以论文正文为准。
