{"p":"can-20","op":"mint","tick":"can","amt":"1000","rows":[{"df":"qa","content":[{"q":"What are the roles of consensus mechanisms in blockchain?","a":"aintaining decentralization: The consensus mechanism encourages collaboration between nodes, reducing their  dependence on centralized institutions, and making the blockchain more decentralized and democratic."}]}],"pr":"9cc98c0d3beee48ee28a6426574755c4a2c36a0a8114a4b31195ca716a15d376"}