Both in the design and deployment of blockchains many configuration choices need to be made. Investigating different implementation and design choices is not feasible or practical on real systems. Therefore, we propose BlockSim as a framework to build discrete-event dynamic system models for blockchain systems. BlockSim is organized in three layers: incentive layer, connector layer and system layer and is implemented in Python. This paper introduces BlockSim, with a particular emphasis on the modeling and simulation of block creation through the Proof of Work consensus algorithm.
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Alharby et al. (2019) studied this question.
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