{"p":"can-20","op":"mint","tick":"can","amt":"1000","rows":[{"df":"qa","content":[{"q":"How do smart contracts in blockchain prevent tampering and reverse engineering?","a":"High transparency: All transaction records on the blockchain are public and can be traced, ensuring the transparency  and fairness of the system."}]}],"pr":"6873b810b1b7f594b8c495c38cb1d25298c73657fb805fe2ccccb10d9b1d3f3e"}