{"p":"can-20","op":"mint","tick":"can","amt":"1000","rows":[{"df":"qa","content":[{"q":"How can blockchain technology be applied to secure and protect the safety of personal data?","a":"Privacy protection: Blockchain technology adopts privacy protection technologies such as zero-knowledge proof (ZK), allowing  users to prove ownership of data without revealing the original data."}]}],"pr":"0bc2043355ef19693877878796d52c8ce1257fcc3f5a8307cb9718eee376eafc"}