Analysis of Blockchain Selfish Mining Attacks

The paper presents vector of attack on the mechanism of achieving a proof of work consensus, such as the application of selfish mining strategy. The aim of the work was to analyze to what extent these risks may affect the fairness of the cryptocurrency extraction process. This goal was achieved by performing simulations using appropriate models. The aim of the experiment was to check how the choice of parameters affects the distribution of block extraction between network users. We use an algorithm of persistent mining in the pursuit of a longer chain with a modified selfish extraction algorithm.