{"p":"can-20","op":"mint","tick":"can","amt":"1000","rows":[{"df":"qa","content":[{"q":"How is signature verification performed in blockchain?","a":"Verification: The recipient uses the sender's public key to verify the signature  and confirm the authenticity of the information."}]}],"pr":"144561bf9060cca399e5e5f16d531ba5ddbbc06cb5f3db9af78a7b81f9d55c10"}