{"p":"can-20","op":"mint","tick":"can","amt":"1000","rows":[{"df":"qa","content":[{"q":"What are the digital identity authentication technologies in blockchain?","a":"Decentralized Identity Authentication: Based on blockchain technology, users can undergo identity verification through a decentralized  identity authentication system, avoiding reliance on centralized authentication institutions and improving the security and reliability of identity authentication."}]}],"pr":"4932f4bba1638f028becdcfc61d6460afdd90df9eafbf1a615e7e03ddaf82b33"}