HashKey HSK announces the official launch of its mainnet HashKey Chain, using OP-Stack technology to significantly improve transaction speed and reduce fees, providing users with an efficient and convenient trading experience. OP-Stack is an open-source framework that supports the Optimism mainnet, simplifying L2 blockchain construction and allowing developers to customize L2 networks while accessing Ethereum's shared security. HashKey Chain has also launched a $50 million Atlas Grant program to support high-quality Web3 projects and promote rapid growth in the application layer and user base.