Abstract:In order to solve the problem of authority deception or lacking of trust in the incentive mechanisms, the blockchain technology is used due to its decentralization, openness, immutable and anonymity. However, existing incentive mechanisms based on blockchain has design defects or lack of evaluation. To solve the above problems, a distributed incentive architecture based on blockchain was proposed, which can provide guidance and evaluation basis for the design of incentive mechanism. In this architecture, an incentive mechanism was considered as a transaction in the blockchain, and the basic and additional requirements of the incentive mechanisms based on blockchain were formulated from the three aspects of payment flow, payment method and payment amount of the transaction, including the entire process of incentive transactions. Then, a three-stage blockchain-based incentive mechanism framework for scene adaptation, payment strategy, and effect evaluation was designed. In the scene adaptation stage, the interests of the participants were extracted by analyzing the role relationship of the scenario to apply to the difference of transaction verification and payment flow in different scenarios. The payment strategy stage provided the characteristics and functions of various cryptocurrencies, pricing strategies and payment methods to guide the selection of cryptocurrency, the design of pricing strategy and the determination of payment method. The effect evaluation stage was used to analyze the effect of the incentive mechanism from the aspects of security and credibility, privacy protection, scalability, etc., so as to give a more comprehensive evaluation. Finally, the architecture was used to design and evaluate the incentive mechanism of the crowdsensing application. The evaluation results show the optimization effect of the incentive design scheme in terms of security and truthfulness, privacy protection, and efficiency improvement, thereby verifying the effectiveness of the architecture.