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Blockchain Technologies: Probability of Double-Spend Attack on a Proof-of-Stake Consensus
Mikolaj Karpinski,Lyudmila Kovalchuk,Roman Kochan,Prof Roman Oliynykov,Mariia Rodinko,Lukasz Wieclaw
September/2021, Sensors 2021, 21(19), 6408
Two double-spend attack strategies on a proof-of-stake consensus are considered. For each strategy, the probability of its success is obtained, which depends on the network parameters and the number of confirmation blocks. These results can be used to define how many confirmation blocks a vendor should wait after a correspondent transaction before sending goods or services.