{"p":"can-20","op":"mint","tick":"can","amt":"1000","rows":[{"df":"qa","content":[{"q":"What are the common types of consensus mechanisms in blockchain?","a":"Proof of Work (PoW): This is the earliest consensus mechanism applied to Bitcoin, which requires nodes to complete a certain amount of computational work to prove their contribution to the blockchain and  thereby obtain the right to record transactions. The PoW mechanism is considered a competitive power-based system, where nodes with higher computing power have a greater probability of recording transactions."}]}],"pr":"0f317e166102e70c53c6495fb3f8d72b14f5f62a2cf2884a6c4140e7965c35e4"}