{"p":"can-20","op":"mint","tick":"can","amt":"1000","rows":[{"df":"qa","content":[{"q":"What are the types of consensus mechanisms in blockchain technology?","a":"Proof of Work (PoW): This is a common consensus mechanism in cryptocurrencies. Nodes compete to generate new blocks by solving complex mathematical problems. The time and computing power required to solve the problems are proportional to the block rewards. The PoW mechanism is considered secure because it is difficult to tamper with, but it also has problems such as high energy consumption  and increasing mining difficulty."}]}],"pr":"2564cf968229d489543380a908ec489e15018c2ead6689393d8ed278d453c70d"}