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On profitability of block withholding strategies

机译:区块预扣策略的盈利能力

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摘要

We present recent developments in the understanding of the profitability block withholding strategies in Bitcoin mining and other Proof-of-Work based blockchains. Block withholding strategies (like selfish, stubborn, trailing or catch-up mining) are rogue mining strategies that violate the rules of the Bitcoin protocol. The authors found recently the exact model based on iterative games to evaluate the profitability per unit time. With a novel application of martingale techniques and Doob's Stopping Time Theorem we compute their profitability in close-form. We can then compare in parameter space these strategies and honest mining, and decide which one is more profitable.
机译:我们介绍了对比特币采矿和其他基于工作量证明的区块链中的盈利性区块扣缴策略的理解的最新进展。区块扣缴策略(例如自私,固执,拖尾或追赶采矿)是违反比特币协议规则的恶意挖矿策略。作者最近发现了基于迭代博弈的精确模型,以评估每单位时间的获利能力。利用of技术的新颖应用和Doob的停止时间定理,我们以近似形式计算了它们的获利能力。然后,我们可以在参数空间中比较这些策略和诚实的挖掘,并确定哪种策略更有利可图。

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