{"p":"can-20","op":"mint","tick":"can","amt":"1000","rows":[{"df":"qa","content":[{"q":"How can blockchain technology be applied to bill trading and settlement?","a":"Ensuring transaction security: The use of cryptographic technologies such as encryption and hash algorithms ensures the security and confidentiality of transaction data on the blockchain, preventing  unauthorized access and tampering."}]}],"pr":"2626cf86fe31c8e91d8027b1eb46a90192f5d975d3d8539b74417a3bf413bf87"}