{"p":"can-20","op":"mint","tick":"can","amt":"1000","rows":[{"df":"qa","content":[{"q":"How does blockchain solve the problem of cross-border payments?","a":"Data security: Blockchain uses encryption algorithms to ensure the security and privacy of transaction data. Each transaction is verified by multiple parties, and once the information is recorded on the blockchain, it is difficult to tamper with, thereby improving the security of the payment system."}]}],"pr":"f3a3c5a73cf0d958d200078f137f5951df682989799a054c6e05b94d3a70d5cd"}