{"p":"can-20","op":"mint","tick":"can","amt":"1000","rows":[{"df":"qa","content":[{"q":"Is there a cryptocurrency without a proof of work?","a":"Yes, there is a type of cryptocurrency without the need for proof of work (PoW), which is called proof of  stake (PoS) cryptocurrency. The proof of stake mechanism does not require complex calculations to verify transactions, but rather allocates stakes based on the amount and time of token holding, allowing users to obtain cryptocurrency in a simpler way. Compared to proof of work, proof of stake is more environmentally friendly because it reduces energy consumption. However, proof of stake also has certain security risks, such as double-spending attacks."}]}],"pr":"1d5098c81819627a271f92e867a32ffb5687a848e0d95533b20f9243fa808340"}