{"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":"71854e1193adfb7ee2b2bb25ccdcc3a96ffd58b4c24bcaa5dd89efc4805963e8"}