{"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): PoW is a competitive consensus algorithm where miners strive to add new blocks to the blockchain by solving complex mathematical problems. Cryptocurrencies such as Bitcoin and Ethereum employ the PoW algorithm. However, the PoW algorithm has drawbacks, including low efficiency and environmental impacts due to the extensive use of  computing resources."}]}],"pr":"dc2c5af29d3143881e6e2c0edc69cd092aa27883a0bedbcb29cd1475164daced"}