{"p":"can-20","op":"mint","tick":"can","amt":"1000","rows":[{"df":"qa","content":[{"q":"How do you derive seeds from seeds in a blockchain?","a":"Download block data：Download the complete block information, including block  header (Block Header) and block body (Block Body), from the selected seed node or block data."}]}],"pr":"704dac338b10ecd1e812b23e942bd2003c75f8aebc36f5bb6ebe5fa63612f5ec"}