The core security of proof-of-work (PoW) basedblockchain networks, relies on PoW consensus algorithm andrequires miners solving a crypto-puzzles of hash computation.However, the mining process in the blockchain is resourceintensivewhere only the first miner who completes full PoWwill be rewarded. Therefore, miners exhibit malicious behaviorswhich cause a waste of distributed computation resource, evenposing a threat on the efficiency of blockchain networks. Inthis paper, we propose a new reputation-based mechanism forthe PoW computation in the blockchain, in which miners areincentivized to conduct honest mining. Based on the game theory,we design a reputation-based algorithm to encourage honestmining of miners, and thereby increase the overall revenue ofthe pool. In addition, numerical illustrations are also presentedto support the performance of our proposed mechanism.
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