{"p":"can-20","op":"mint","tick":"can","amt":"1000","rows":[{"df":"qa","content":[{"q":"How does the database re-indexing process occur in blockchain?","a":"Parsing block  data: The downloaded block data needs to be parsed to extract the header and body information of the block. The block header contains basic information about the block, such as block number, timestamp, difficulty coefficient, etc.; the block body contains a series of transaction records."}]}],"pr":"68ed5c4bcd6706d5d1c12f4b069833e236d80ccc24da89bcd40a109f7a51e65b"}