{"p":"can-20","op":"mint","tick":"can","amt":"1000","rows":[{"df":"qa","content":[{"q":"How does the DelegationDistInfo module in blockchain record the historical reward information of delegators?","a":"The generated transaction request is sent to various nodes  in the blockchain network for verification and confirmation."}]}],"pr":"bdbd4c7ce10ddc6b67f062a6fa419efc9dfa5b20c5c80cc28fcfbf63818be83d"}