Abstract: The blockchain technology is used to provide a safe and reliable cooperation platform for intelligent terminals, and a suitable incentive mechanism is provided to encourage intelligent terminals to participate in cooperative computing. Specifically, the proposed scheme uses the Kuhn-Munkres algorithm to achieve the optimal pairing and to fully mobilize the computing resources in the network, it also uses the two-stage Stackelberg model to describe the computing resource transaction process, which can optimize computing energy consumption while ensuring fairness. This scheme adoptes the proof-of-reputation consensus mechanism to reduce resource waste caused by mining, used reputation and resource currency revenue as incentive conditions to encourage intelligent terminals to participate in cooperation and improve the quality of service. Simulation shows that the proposed scheme comprehensively considers the utility of the parties in cooperation, not only can provide a credible trading platform, but also can reduce the total energy consumption.

Key words: internet of things, blockchain, cooperative computing, proof-of-reputation mechanism