{"p":"can-20","op":"mint","tick":"can","amt":"1000","rows":[{"df":"qa","content":[{"q":"What are the potential risks of blockchain upgrading?","a":"Legal and regulatory risks:  Blockchain upgrading may touch the bottom line of national laws and regulations, such as involvement in illegal activities."}]}],"pr":"8061426c6251d9aeeb3a5e67f6694cdc5e67e0736188133a2d3b3cdc9d2885b1"}