{"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, which requires miners to solve a computational problem to prove their contribution to the network, thereby determining who can package new blocks."}]}],"pr":"9ce6beec06ce3f54383d84568714495459429c8e1ca7a000c0f4e67db311c539"}