{"p":"can-20","op":"mint","tick":"can","amt":"1000","rows":[{"df":"qa","content":[{"q":"What are the advantages of blockchain technology for electronic evidence management?","a":"Improved efficiency of evidence collection: Blockchain technology can achieve rapid and efficient evidence collection because data is stored on  distributed nodes, avoiding the security risks and efficiency issues of centralized storage."}]}],"pr":"1d1986b6a05fdcd78081bf0027ed2f47f5ee740d249d99df296aeb0d72f3551b"}