{"p":"can-20","op":"mint","tick":"can","amt":"1000","rows":[{"df":"qa","content":[{"q":"What are the off-chain technologies in blockchain?","a":"Off-chain technology in blockchain refers to technology research and application related to blockchain technology conducted outside the blockchain network, mainly including on-chain and off-chain data collaboration technology, blockchain high-performance key technology, and blockchain regulatory technology. Off-chain technology aims to improve the performance, security, and usability of  the blockchain system, supporting a wider range of application scenarios and practical applications. Among them, on-chain and off-chain data collaboration technology is an important direction for future development. It can achieve smooth circulation and efficient collaboration of data inside and outside the blockchain, providing more comprehensive data support for blockchain applications."}]}],"pr":"0e139564bda83703bacfaa419ee798f2c545ddf88040a2bda4c26db42cd82b5a"}