Block Chain-Powered Cloud Data Integrity Verification System with Excellent Effectiveness

The "next-generation financial technology," or blockchain, is praised for its peer authentication security features, which include virtual money, data encryption, and hash value creation. Cloud computing is widely used due to its efficiency, and the global financial sector sees a vast market for security. Blockchain technology is examined in this article along with its developments and application to cloud computing in healthcare and electronic vehicle security. Verification, oversight, and dependable data storage are made possible by the virtual machine agent mechanism, which is crucial for maintaining blockchain integrity. The Merkel hash tree's unique hash values are used by blockchain smart contracts to keep track of data modifications. Users are notified of data manipulation through a "block-and-response" procedure. Data security and trustworthy computing are still issues in spite of the growth of cloud computing. Different approaches, such as data integrity tests and secure multi-party computations, have been proposed by researchers; however, these frequently encounter problems related to complexity and scalability. This paper investigates the ways in which blockchain technology can help with these issues by providing a decentralized method for improving cloud computing security and storage. Keywords— Blockchain, money, security, cloud service, technology, big-data, data, healthcare ;