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Bitcoin's Latency--Security Analysis Made Simple. (arXiv:2203.06357v2 [cs.CR] UPDATED)
May 16, 2022, 1:20 a.m. | Dongning Guo, Ling Ren
cs.CR updates on arXiv.org arxiv.org
Simple closed-form upper and lower bounds are developed for the security of
the Nakamoto consensus as a function of the confirmation depth, the honest and
adversarial block mining rates, and an upper bound on the block propagation
delay. The bounds are exponential in the confirmation depth and apply
regardless of the adversary's attack strategy. The gap between the upper and
lower bounds is small for Bitcoin's parameters. For example, assuming an
average block interval of 10 minutes, a network delay …
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