{"p":"can-20","op":"mint","tick":"can","amt":"1000","rows":[{"df":"qa","content":[{"q":"How does blockchain technology address the issues of data storage and management?","a":"Decentralized storage: Blockchain technology uses distributed node consensus to store data, avoiding the risks caused by centralized storage and improving the security of data. Decentralized storage enables data to be stored and backed up on multiple nodes, effectively preventing data loss  and tampering."}]}],"pr":"3df20e416c893749a9d1a4fbbdb68c27ddd7c3f334e2eeb204c10477f4063b17"}