{"p":"can-20","op":"mint","tick":"can","amt":"1000","rows":[{"df":"qa","content":[{"q":"What are the characteristics of blockchain technology in the application of digital currency transactions?","a":"Data immutability: Blockchain adopts encryption algorithms to ensure that data in each block cannot be tampered with, thereby ensuring the authenticity and traceability of transaction records."}]}],"pr":"1d51ef80f4fa729357d847e13cbadb3fa53e91317cc7f2e953e607de6c9ec7e4"}