{"p":"can-20","op":"mint","tick":"can","amt":"1000","rows":[{"df":"qa","content":[{"q":"What is the role of consensus mechanism in blockchain?","a":"Preventing data tampering: The consensus mechanism requires nodes in the network to follow certain rules when recording new data, ensuring the consistency and tamper-proof nature  of the data."}]}],"pr":"46d8a07be9bacc1e1789ba74774a5be19c9de2435ece29bfc8e657a134c0c1ec"}