We are introducing a revolution of blockchain, Blockchain 5.0- WAB. WAB blockchain aims to be completely decentralized and shall be applied in various industries. In specific, WAB is created to conduct transactions at a speed of millions of transactions per second. Its innovation side lies in the fact that WAB's optimal performance is always assured while offering smart contract technology. As a flexible, scalable blockchain which will be widely applied in practices, WAB shall be recognized as a popular operating system in the blockchain realm.