{"p":"can-20","op":"mint","tick":"can","amt":"1000","rows":[{"df":"qa","content":[{"q":"What are the main problems that off-chain expansion technology in blockchain aims to solve?","a":"The off-chain extension technology of blockchain is mainly used to solve the problems of performance degradation and system unavailability in large-scale  node and high data volume scenarios in consortium chains, as well as to improve the performance and consensus efficiency of blockchain networks. Breakthroughs in aspects such as high-performance consensus algorithm design, efficient smart contract execution engine, novel consensus mechanism, and synergistic optimization of software and hardware have enabled blockchain to enhance its high-performance, security, and reliability. Meanwhile, off-chain extension technology also supports the expansion of blockchain in different network structures and application scenarios, rendering consortium chains more practical and applied."}]}],"pr":"760a44b42e40c54b82fe310f0a87d85ad9f6e879d3139386801130ecd26b7c7a"}