{"p":"can-20","op":"mint","tick":"can","amt":"1000","rows":[{"df":"qa","content":[{"q":"How to ensure the security of a blockchain network?","a":"Blockchain technology adopts a decentralized network architecture, wherein there is no single central node in the data storage and transmission  process, thereby reducing the success rate of hacker attacks."}]}],"pr":"1ba63ee6555677ea2d8b68d1f62dd711c40bd85355eee8123b0e18553ec19f2e"}