A rational delegating computation protocol based on reputation and smart contract

Abstract

The delegating computation has become an irreversible trend, together comes the pressing need for fairness and efficiency issues. To solve this problem, we leverage game theory to propose a smart contract-based solution. First, according to the behavioral preferences of the participants, we design an incentive contract to describe the motivation of the participants. Next, to satisfy the fairness of the rational delegating computation, we propose a rational delegating computation protocol based on reputation and smart contract. More specifically, rational participants are to gain the maximum utility and reach the Nash equilibrium in the protocol. Besides, we design a reputation mechanism with a reputation certificate, which measures the reputation from multiple dimensions. The reputation is used to assure the client’s trust in the computing party to improve the efficiency of the protocol. Then, we conduct a comprehensive experiment to evaluate the proposed protocol. The simulation and analysis results show that the proposed protocol solves the complex traditional verification problem. We also conduct a feasibility study that involves implementing the contracts in Solidity and running them on the official Ethereum network. Meanwhile, we prove the fairness and correctness of the protocol.

EGQCY: A smart contract-based scientific big data system approach for incentive sharing and transaction on the cost of data quality

“…Smart contracts can verify the identity of users through code to achieve legal regulation for the authorized use and sharing of data on the blockchain. As such, smart contracts are seen as cracking the big data risk control puzzle [29] In dealing with information sharing and transactions, game theory is widely used in the design of smart contracts, encompassing prisoner contracts, complicity contracts, and betrayal contracts [30]. Smart contract operation replaces trusted third parties as an auditable and fair payment protocol, providing an efficient data transaction.…”