{"p":"can-20","op":"mint","tick":"can","amt":"1000","rows":[{"df":"qa","content":[{"q":"What are the characteristics of the Secure Proof of Stake (SPoS) consensus mechanism in blockchain?","a":"Environmental protection and energy saving: Compared to Proof of Work (PoW), SPoS does  not require complex calculations, reducing energy consumption and being beneficial to environmental protection."}]}],"pr":"483939d0eb6c4fde674b2e8878c7901d13f682f3b9d049c9e7291142b5242fad"}