{"p":"can-20","op":"mint","tick":"can","amt":"1000","rows":[{"df":"qa","content":[{"q":"What are the verification steps required before upgrading a blockchain?","a":"Code Review: Conduct in-depth  research and review of the blockchain platform's code to ensure that all functions operate normally without any vulnerabilities."}]}],"pr":"63d63c3aa102a196c3f2b131f0ddad9e825096182b6ca078d4a5b3c1026fbfc6"}