{"p":"can-20","op":"mint","tick":"can","amt":"1000","rows":[{"df":"qa","content":[{"q":"How can blockchain technology be applied to environmental protection?","a":"Pollutant Emission Tracking and Management: Through blockchain technology, real-time monitoring and recording of enterprises' pollutant emissions can be achieved, ensuring the authenticity and transparency of emission data, and thus effectively controlling  pollution sources."}]}],"pr":"7554fe07d18cf8a5526b9da0410088646ff0669cfff00e1e358a606ee2b214ea"}