Research On Fair Scenario Applications Based On Blockchai

Blockchain technology has the characteristics of decentralization,non-tampering,traceability,etc.,and is widely used in various fields of social life.This article mainly discusses the application of blockchain in fairness scenarios from the angle of auction and contract signing.With the rapid development of the Internet and e-commerce,auction scenes are no longer limited to offline,and more and more participants choose to participate in online auctions.However,the existing mainstream auction platforms mostly rely on centralized third-party intermediaries to realize the management of the entire auction process and the settlement of auction results.A centralized third party can collude with a party in the auction to destroy the fairness of the auction process.Therefore,the transparency and safety of the auction process cannot be effectively guaranteed.At the same time,due to the lack of an effective supervision mechanism,it is not known whether the auction process will proceed in accordance with the regulations.In order to solve the above problems,this article chooses to introduce blockchain technology into the auction scene.Both auction parties pre-set jointly approved auction rules in advance,and ensure the effective implementation of the rules in the form of smart contracts to ensure the fairness and transparency of the auction process.On this basis,this article introduces the concepts of margin and guarantee statement into the smart contract to increase the default cost of both parties to the auction,so as to further restrict the behavior of both parties.In addition,in order to ensure that buyers and sellers can truthfully settle the settlement according to the auction results after the auction process is over,this solution adds a contract signing step after the auction ends.In this step,the two parties who have reached the auction intention can only be withdraw the margin after the contract is signed.Bidders who have not reached a deal can immediately withdraw the margin.In the existing contract signing scheme,the parties signing the contract cannot fairly exchange their respective signatures on the contract,which may result in a situation where only one party gets the signature of the other party during the contract signing process,which obviously violates the fairness of contract signing.In order to solve the problem of unsatisfactory fairness in the existing contract signing schemes,this paper proposes a blockchain-based fair contract signing scheme,which combines a fair exchange scheme based on simultaneously valid signatures and smart contracts to enable contract signing Both parties can get the other’s signature at the same time or neither can get the signature of the other party,which ensures the fairness of the contract signing.The solution proposed in this paper implements the blockchain-based online auction and contract signing process in the simulated environment Ganache.The experimental results show that this solution can effectively monitor the dishonest behavior of both parties in a fair scenario to ensure the reliability of the transaction,thereby verifying The feasibility of this program.