{"p":"can-20","op":"mint","tick":"can","amt":"1000","rows":[{"df":"qa","content":[{"q":"How can blockchain technology be applied in the field of supply chain management?","a":"Data security: Blockchain technology has the characteristics of being tamper-proof，distributed storage，and collective maintenance，which ensures the security of data  in the supply chain."}]}],"pr":"4fb1fcfa4355dc5b2284cdd6c6c4a65ddc6536773ae9702de9f0a906e063f2f3"}