Grunspan, C., & Perez-Marco, R. (2018). Double spend races, Int. J. Theor. Appl. Finance, 21(8), 1850053.
Added by: Rucknium (23/08/2023, 16:51) Last edited by: Rucknium (23/08/2023, 16:52)
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Abstract
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We correct the double spend race analysis given in Nakamoto's foundational Bitcoin article and find the exact closed-form formula for the probability of success of a double spend attack using the regularized incomplete beta function. We give the first proof of its exponential decay on the number of confirmations, often cited in the literature, and find an asymptotic formula. Larger number of confirmations are required compared to those given by Nakamoto. We also compute this probability conditional to the knowledge of the time of the confirmations. This provides a finer risk analysis than the classical one.
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