{"p":"can-20","op":"mint","tick":"can","amt":"1000","rows":[{"df":"qa","content":[{"q":"How does the OCR module in blockchain verify the signature of Oracle reports?","a":"Preprocessing:  The OCR module performs preprocessing on the reports, including image enhancement, noise removal, and character segmentation."}]}],"pr":"177f58329a7a45439881194a765877fdc374346d8cd75e672ab14f7eecf7f0f2"}