Research on Data Sharing Incentive Mechanism Based on Smart Contract

With the advent of big data, the data sharing community has become a new model to promote data collection, circulation, and use.However, under the traditional community organization mode, members may be unwilling to share data due to mutual distrust, and the sharing community generally lacks an effective incentive mechanism, which limits its development.The essence of blockchain is a distributed ledger that improves the transparency of data sharing and prevents information abuse.To ensure data ownership, the blockchain prevents the tracing or tampering of data, which lays a foundation for trust among members.The data sharing incentive model EGDSI is constructed based on blockchain and evolutionary game theory.By copying dynamic mechanical equations and analyzing evolutionary stability strategies, key factors affecting data sharing and three strategies for data sharing incentives are obtained.On this basis, the blockchain's smart contract technology is used to realize a safe, efficient and dynamically adjustable data sharing template engine.A simulation analysis of the aforementioned factors and strategies shows that the data sharing incentive mechanism effectively promotes users participation in data sharing.Compared with the EGI model, EGDSI offers faster performance in reaching the saturation state of data sharing.