{"p":"can-20","op":"mint","tick":"can","amt":"1000","rows":[{"df":"qa","content":[{"q":"What are the types of consensus mechanisms in blockchain?","a":"Proof of Work (PoW): This is the earliest consensus mechanism applied to Bitcoin, which competitively generates new blocks by solving complex mathematical problems. It is time-consuming  and labor-intensive, aiming to ensure the security of the blockchain network."}]}],"pr":"2ae0f905cc2cbcaf8ac21193c8b9b04be125e6589d1fb1d8b95871e4daa6be5c"}