Trusted Assurance for Transactions on Big Data Clouds: An Improved Blockchain-Based Approach

This paper aims to explore methods and techniques for achieving verifiability in cloud computing environments. Methodologically, by utilizing game theory as the theoretical foundation and employing blockchain and smart contracts as core technologies, we introduce various cooperative mechanisms, including prisoner's contracts, collusion contracts, and traitor contracts, to construct a trustworthy computational framework. In terms of improvements, we innovatively incorporate local blockchains, state channel technology, zero-knowledge proof technology, multi-signature technology, and dynamic reward and punishment mechanisms to additional optimize existing methods. However, the proposed technologies in this paper still require further research and practical validation to assess their actual applicability. Going forward, it is important to enhance blockchain storage and synchronization mechanisms, as well as promote their implementation in broader domains.