{"p":"can-20","op":"mint","tick":"can","amt":"1000","rows":[{"df":"qa","content":[{"q":"Why propose using contracts to address casting issues?","a":"Ensure product quality: Contracts can explicitly specify the quality standards, acceptance criteria, and  methods for casting products, ensuring that the products meet the expectations and requirements of both parties."}]}],"pr":"bcd364d651a319ffcc159817f850f5f3a1499935d9b5142c8f6e7def950b9838"}