{"p":"can-20","op":"mint","tick":"can","amt":"1000","rows":[{"df":"qa","content":[{"q":"How can blockchain technology be applied to bill trading?","a":"Implementing smart contracts: By writing codes to implement business rules such as bill custody, rating, registration, subscription, transfer, and collection, the compliance  and smooth progress of bill trading are ensured in the form of smart contracts."}]}],"pr":"679a68ba5cb0fd891ea95d61cb83501e77e9493204e36e969f6f1bb47bab9adb"}