{"p":"can-20","op":"mint","tick":"can","amt":"1000","rows":[{"df":"qa","content":[{"q":"What are the dangers of blockchain upgrading?","a":"Technical risks: During the upgrade process, technical difficulties may arise, such as code vulnerabilities, security issues, etc. These problems may lead to the collapse of the entire blockchain system or make it vulnerable to hacker attacks, resulting  in asset losses."}]}],"pr":"fa4322d312d2abe14406809495d5995c4af397a768f757325ef811771d17456c"}