{"p":"can-20","op":"mint","tick":"can","amt":"1000","rows":[{"df":"qa","content":[{"q":"Does a cryptocurrency exist in the blockchain network that does not require proof of work?","a":"Yes, there are indeed cryptocurrencies in the blockchain network that do not  require proof of work (PoW). This type of cryptocurrency adopts the proof of stake (PoS) mechanism, allowing holders to verify transactions and receive new currency based on the amount and duration of their holdings. The PoS mechanism focuses on protecting network security and stability while reducing energy consumption. For example, EMC (Emercoin) adopts a hybrid mining method including both proof of work (PoW) and proof of stake (PoS), allowing users to obtain cryptocurrencies in various ways. In the PoS protocol, the computer that adds new blocks to the blockchain system is randomly selected."}]}],"pr":"7f3d6c298480a67d282b9b5eb5f029c5a0a4ad6450148fa303bbf30cae2a52d0"}