AOS grabs the opportunity to grow into a leading public blockchain, focusing on smart contracts that combine with privacy technology. In fact, we had combined the programming technology based on zero-knowledge proof with smart contracts, which turned out to be a big success in testing. It is the flexible Account model adopted by AOS that allowed us to launch the technology in a short time cycle. This subtle combination is the most successful solution at the moment and is available for developers to utilize at will in a short time.