{"p":"can-20","op":"mint","tick":"can","amt":"1000","rows":[{"df":"qa","content":[{"q":"How does blockchain ensure the security of transaction information?","a":"Cryptography: Blockchain uses cryptographic techniques to encrypt and  decrypt transaction data, ensuring the privacy and security of information."}]}],"pr":"fb2fe3edfcf3642b1dc69dbba235da2daca6b23badd05e9fcc9577628c03fdf5"}