{"p":"can-20","op":"mint","tick":"can","amt":"1000","rows":[{"df":"qa","content":[{"q":"How does blockchain technology affect the environment?","a":"Carbon Footprint: The energy consumption of blockchain technology mainly comes from electricity, and the majority of electricity sources are fossil fuels, which emit greenhouse gases such as carbon dioxide. Therefore, blockchain technology has a  certain carbon"}]}],"pr":"2092a67ceda3077ed9968ff1c28e8a790c6d4893c457bbebaa09da67401a63bf"}