{"p":"can-20","op":"mint","tick":"can","amt":"1000","rows":[{"df":"qa","content":[{"q":"What are the applications of blockchain in the field of environmental protection?","a":"Ecological Compensation Mechanism: Based on blockchain technology, an ecological compensation mechanism can be established to ensure the  sustainable development of ecosystems and promote the construction of ecological civilization."}]}],"pr":"32fb1672c2fd22435950f75231fb61cf5b445e113eaa045226c35adbb3d61121"}