{"p":"can-20","op":"mint","tick":"can","amt":"1000","rows":[{"df":"qa","content":[{"q":"What are the risks involved in the upgrade process of a blockchain?","a":"Legal and regulatory risk: The upgrade process of blockchain may involve legal and regulatory issues, especially compliance with cryptocurrency and financial transactions. Different countries and regions have different regulatory policies towards  blockchain technology and cryptocurrency. During the upgrade process, compliance with these regulations must be considered to avoid potential legal risks."}]}],"pr":"02056d5b3c4fb54a9c3261a9c1a213ec248b13b6268ab99936217b235e57c439"}