{"p":"can-20","op":"mint","tick":"can","amt":"1000","rows":[{"df":"qa","content":[{"q":"How does blockchain apply to bill trading?","a":"Immutable data: Based on the  immutability of information on blockchain, once the bill transaction is completed, there will be no defaults, thus avoiding phenomena such as multiple sales of a single bill and misaligned endorsements, effectively preventing risks in the bill market."}]}],"pr":"9407dc8a47d73adb1ff6d7e8f4035281ef371562ae1660c21dae35a8ca729a18"}