We propose a credible alliance-chain-based public auditing scheme (CACPA) to properly address the trust problem of third-party auditor (TPA) in the traditional audit scheme for cloud storage. Based on the non-tamperability and traceability of blockchain. we design a novel incentive mechanism to enforce honest and reliable behaviors of TPA. The basic idea is to organize TPA as a group ... https://www.roneverhart.com/DeRoyal-LMB-Spring-Finger-Extension-Assist/