{"p":"can-20","op":"mint","tick":"can","amt":"1000","rows":[{"df":"qa","content":[{"q":"How does blockchain technology ensure the security of transactions?","a":"Consensus mechanism: Nodes in the blockchain  network need to reach consensus to confirm transactions and generate new blocks. The consensus mechanism ("}]}],"pr":"46d96b5ec969451e495caffe17bfe7840c7234be1ab3734200f24a310091b377"}