The Credit And Arbitration Mechanism Of Blockchain For Crowdsourcing

Crowdsourcing is a distributed business service model brought about by the Internet,which can realize the effective matching of large-scale service supply and demand,which can never be realized in the traditional offline service market.However,traditional crowdsourcing systems are centralized and still have problems such as user security and system reliability.More importantly,the work attitude of the receivers and the evaluation fairness of task solutions in the crowdsourcing system have always been the main problems of crowdsourcing.Therefore,this paper needs to establish a safe and reliable crowdsourcing decentralized system that can motivate the receivers to work hard and ensure the fairness of the evaluation.Blockchain is characterized by collective maintenance and distributed storage transaction ledger.This paper proposes to combine it with crowdsourcing to effectively solve user security and system reliability problems.Firstly,as a distributed ledger technology,blockchain will not interrupt service even if a node in the system fails,which improves the reliability of crowdsourcing system.Secondly,due to the anonymity of the blockchain,in the crowdsourcing system based on the blockchain,users only need to provide identity description information for registration,instead of providing mobile phone number,real name and other private information,which protects the privacy of users and improves the security of the system.Finally,the blockchain technology is applied to the crowdsourcing business,and the entire crowdsourcing process is automatically performed through smart contract.Users no longer pay expensive service fees to the traditional crowdsourcing platform,but only pay a small amount of transaction fees,which reduces the economic cost of users.Although the combination of blockchain technology and crowdsourcing has improved the reliability of the system,the security and cost of users,the work attitude of the receivers and the fairness of task solution evaluation have not been solved.Based on the blockchain technology,this paper realizes the whole crowdsourcing process through smart contract,and proposes the credit mechanism and arbitration mechanism applicable to the general online service industry.Specifically,the credit mechanism defines each user 's historical credibility through credit score,and uses it as an important indicator for the crowdsourcing platform to identify and punish malicious receivers,and provides a standard for the selection of members of the arbitration institution.On this basis,this paper also uses the repeated game method based on the credit score calculation model to encourage receivers to complete crowdsourcing business seriously.The arbitration mechanism refers to the arbitration of task solutions submitted by receivers through a decentralized and credible arbitration institution rather than senders or the crowdsourcing platform,which guarantees the fairness and impartiality of the solution evaluation.