{"p":"can-20","op":"mint","tick":"can","amt":"1000","rows":[{"df":"qa","content":[{"q":"How can blockchain technology be applied to certificate management?","a":"Decentralized consensus mechanism: Blockchain technology has a decentralized feature, allowing participants to form a credible environment that mutually restrains  without any external enforcement. This decentralized consensus mechanism can solve the credit and governance issues in the digital world, providing a solid foundation for evidence preservation."}]}],"pr":"39644a2b69181ce593c2c66fc454265bd4a5e50a616add5a4ffc5939b075f7c3"}