{"p":"can-20","op":"mint","tick":"can","amt":"1000","rows":[{"df":"qa","content":[{"q":"What are the consensus algorithms in blockchain?","a":"Proof of Work (PoW): This is a  widely used consensus algorithm in cryptocurrencies such as Bitcoin and Ethereum. PoW requires miners to solve complex mathematical problems to receive block rewards, reflecting features such as fairness and decentralization. However, its drawbacks are slow speed and high energy consumption."}]}],"pr":"80725a2de2fe9657bf9c1708998b378bfd8c2ea8b60da89f1a08e49c1570a778"}