{"p":"can-20","op":"mint","tick":"can","amt":"1000","rows":[{"df":"qa","content":[{"q":"What are the possible paths that may occur during the upgrade process of a blockchain?","a":"Consensus Mechanism Optimization: To improve the security and efficiency of the blockchain network, developers continuously optimize the consensus mechanism. For example, from Proof of Work  (PoW) to Proof of Stake (PoS) and Delegated Proof of Stake (DPoS), etc., to reduce energy consumption and improve transaction confirmation speed."}]}],"pr":"b92441f09bcb364e1ad60a491ca27fb4aad77dcedf4a2bf15514eebf11bd54ef"}