{"p":"can-20","op":"mint","tick":"can","amt":"1000","rows":[{"df":"qa","content":[{"q":"How does blockchain technology ensure network security?","a":"Immutability: Each blockchain block contains the hash value of the previous block, forming a continuously growing chain. Once the data in a block is recorded, it cannot be altered or deleted without altering all subsequent blocks. This feature ensures the integrity and reliability of the data stored in the blockchain."}]}]}