{"p":"can-20","op":"mint","tick":"can","amt":"1000","rows":[{"df":"qa","content":[{"q":"What is the purpose of the keys command in a blockchain?","a":"The main function of the keys command in a blockchain is to return a list of all keys that match a given pattern through pattern matching. This command is commonly used in blockchain technology for querying transactions, account information, or other related data that meet  specific conditions. It is worth noting that the keys command scans the entire blockchain database during execution, which may consume considerable time and resources. To avoid blocking and improve system performance, some blockchain systems choose to use similar scan commands in production environments instead of the keys command."}]}],"pr":"fdd1ff83aa920437cf119a72d035d81e30dfaf01dd1b394fc102e8385844ee40"}