{"p":"can-20","op":"mint","tick":"can","amt":"1000","rows":[{"df":"qa","content":[{"q":"How does blockchain technology solve the problem of data tampering and forgery?","a":"Distributed  consensus mechanism: Blockchain employs a distributed consensus mechanism to reach agreements on the validity of transactions and data"}]}],"pr":"922656940419131240854b1e2afd1ab2e692f165b0a2cd147b0d60cfb214b61c"}