{"p":"can-20","op":"mint","tick":"can","amt":"1000","rows":[{"df":"qa","content":[{"q":"Can blockchain technology be used to address global environmental protection and climate change issues?","a":"Carbon emissions trading: Blockchain technology can be used to build carbon emissions trading platforms, ensuring the transparency and authenticity of carbon emissions data,  thus better facilitating the transaction and allocation of carbon emissions rights."}]}],"pr":"ac6d43bf415497cb7830ff8900599fd6a8376e41992bd701bda0d89e8e742ea9"}