利润滞后和交替网络挖掘
Profit lag and alternate network mining
摘要：
对于挖矿策略，我们将“利润滞后”定义为在那一刻之后盈利所需的最短时间。我们计算封闭形式的利润滞后和收益率的策略“自私的挖掘”和“间歇性自私的挖掘”。这证实了一些早期的数值模拟和澄清文献中的盈利能力的误解。我们还研究了使用相同的挖掘算法挖掘PoW加密货币对，通常来自分叉。这代表了一个攻击向量，可以使用我们定义的“备用网络挖掘”策略进行利用。我们计算了该策略的收益滞后和收益率的封闭形式，该策略比自私挖掘和间歇性自私挖掘更有利可图。它也更难应对，因为它不依赖于难度调整公式中的缺陷，而该缺陷是其他策略盈利的原因。
英文摘要：
For a mining strategy we define the notion of "profit lag" as the minimum time it takes to be profitable after that moment. We compute closed forms for the profit lag and the revenue ratio for the strategies "selfish mining" and "intermittent selfish mining". This confirms some earlier numerical simulations and clarifies misunderstandings on profitability in the literature. We also study mining pairs of PoW cryptocurrencies, often coming from a fork, with the same mining algorithm. This represents a vector of attack that can be exploited using the "alternate network mining" strategy that we define. We compute closed forms for the profit lag and the revenue ratiofor this strategy that is more profitable than selfish mining and intermittent selfish mining. It is also harder to counter since it does not rely on a flaw in the difficulty adjustment formula that is the reason for profitability of the other strategies.
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。
