{"p":"can-20","op":"mint","tick":"can","amt":"1000","rows":[{"df":"qa","content":[{"q":"How does blockchain ensure data security?","a":"Decentralization: Blockchain uses a distributed node consensus mechanism, which does  not rely on a central node for storage and management, thus reducing the risk of single-point failure."}]}],"pr":"a8e2b778bd66a7f2c6eedda95f521bd8f530592a2e2a06c9aa206afb03052924"}