{"p":"can-20","op":"mint","tick":"can","amt":"1000","rows":[{"df":"qa","content":[{"q":"How does blockchain integrate with smart contracts?","a":"Immutable data: Blockchain technology  has the characteristic of immutable data, which means that transaction records and conditions in smart contracts cannot be tampered with, ensuring the fairness and security of contract execution."}]}],"pr":"f4cb966fe576662e148592ed84f3bc2da1a778be8ea3f3a17e97f9744469c850"}