{"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":"Cryptographic authentication: Blockchain  uses cryptographic algorithms to authenticate and validate the data stored in each block, ensuring the integrity and security of the data."}]}],"pr":"08a3b9f590fa1a4dd2414237715e3d74636f45004e1fa05bf1076686e6bc3709"}