论文标题
比特币网络中流氓采矿策略盈利能力的新展望
A New Outlook on the Profitability of Rogue Mining Strategies in the Bitcoin Network
论文作者
论文摘要
关于流氓采矿策略的盈利能力的许多最近的著作都取决于一个称为$γ$的参数，该参数衡量了攻击者在其叉子之上吸引诚实网络的比例。这些作品，请参阅Arxiv：1808.01041和Arxiv.1805.08281，根据错误地对待$γ$恒定的前提提出了结论。在本文中，我们将$γ$视为一个随机过程，并试图通过马尔可夫分析找到其分布。首先，我们对伽马的行为做出了强有力的假设，然后继续数学地翻译它们，以便将它们应用于马尔可夫环境中。上述两个不同的模型在两个不同的场合执行。此外，我们对比特币网络进行建模，并从数值中得出一个限制分布，从而通过似然分析测试了模型的相对准确性。最后，我们得出的结论是，即使控制了总桥梁的20％，诚实采矿也是强烈的统治策略。
Many of the recent works on the profitability of rogue mining strategies hinge on a parameter called $γ$ that measures the proportion of the honest network attracted by the attacker to mine on top of his fork. These works, see arXiv:1808.01041 and arXiv.1805.08281, have surmised conclusions based on premises that erroneously treat $γ$ to be constant. In this paper, we treat $γ$ as a stochastic process and attempt to find its distribution through a Markov analysis. We begin by making strong assumptions on gamma's behaviour and proceed to translate them mathematically in order to apply them in a Markov setting. The aforementioned is executed in two separate occasions for two different models. Furthermore, we model the Bitcoin network and numerically derive a limiting distribution whereby the relative accuracy of our models is tested through a likelihood analysis. Finally, we conclude that even with control of 20% of the total hashrate, honest mining is the strongly dominant strategy.
