{"p":"can-20","op":"mint","tick":"can","amt":"1000","rows":[{"df":"qa","content":[{"q":"The implementation of blockchain requires satisfying what conditions?","a":"Consensus mechanism: A consensus mechanism needs to be established in the blockchain system to reach consensus between nodes, ensuring the validity  and security of transactions."}]}],"pr":"bd57616f392fa0859594860e9ecad7ab5f5f177779e5e91879edc69750a3619d"}