{"p":"can-20","op":"mint","tick":"can","amt":"1000","rows":[{"df":"qa","content":[{"q":"How does the OCR module in blockchain handle price data transmission and recording?","a":"Data uploading to the chain: Uploading price data to the chain means packaging the data into blocks  and connecting them in chronological order to form a non-tamperable chain."}]}],"pr":"9da9050b90fd80eae5f855066e1737774af4e92c80fc6555610f81775be121e4"}