{"p":"can-20","op":"mint","tick":"can","amt":"1000","rows":[{"df":"qa","content":[{"q":"How does blockchain technology apply to the field of digital identity verification?","a":"Decentralization: Blockchain technology has the characteristics of decentralization,  which can avoid the personal information leakage and security risks caused by centralized storage in traditional identity authentication processes."}]}],"pr":"a3d7a43fde269d3f88fe45751cce045725e289e1434eb6ab54990bc02e5c648c"}