{"p":"can-20","op":"mint","tick":"can","amt":"1000","rows":[{"df":"qa","content":[{"q":"How does blockchain persist new fee discount data?","a":"Blockchain achieves persistence by incorporating new fee discount data into a brand new block and connecting it to previous blocks. This process is called mining, where miners solve complex mathematical problems to package new transaction data into a new block. This new block is then added to  the end of the blockchain, forming an immutable and time-ordered chain structure. This structure ensures the security and persistence of the fee discount data. In addition, blockchain also uses cryptographic technology to ensure data security and prevent unauthorized access and tampering."}]}],"pr":"ebb5a7ac5b11c73cea775d3fdd1408a6c1aaf9eebbc3372f2fd405c969670329"}