{"p":"can-20","op":"mint","tick":"can","amt":"1000","rows":[{"df":"qa","content":[{"q":"What is the impact of blockchain on system security?","a":"Immutable data: The combination of cryptographic algorithms and consensus mechanisms ensures that once data is stored  in a block, it cannot be altered or deleted, providing a reliable and tamper-proof data storage mechanism"}]}],"pr":"8ad06701cafacd6c8f059bb5b5c5f5918ce6d1aa3c5d31a23edadbd87c9696ef"}