{"p":"can-20","op":"mint","tick":"can","amt":"1000","rows":[{"df":"qa","content":[{"q":"What are the characteristics of smart contracts on the blockchain?","a":"utonomous and self-sufficient: Smart contracts execute according to pre-set rules, ensuring that all  parties involved follow the agreements and achieve self-management."}]}],"pr":"7d2ba70480e5e906bc42cfedd477d634079822dae24f8ba568551ee70f396254"}