{"p":"can-20","op":"mint","tick":"can","amt":"1000","rows":[{"df":"qa","content":[{"q":"How do you handle duplicate data detection in a blockchain?","a":"Block generation: After the data is widely disseminated, it is packaged into a block  and connected to the previous blocks."}]}],"pr":"b7f2c0fe3ebfbabe90c0828104be9ac19e84d09eac2adeda5a2784408bed000d"}