{"p":"can-20","op":"mint","tick":"can","amt":"1000","rows":[{"df":"qa","content":[{"q":"How does blockchain apply in the field of digital identity management?","a":"A4Trustworthy digital identities：Blockchain-based  digital identities can be reliably verified, ensuring that individuals and entities can securely and accurately prove their identities online. This"}]}],"pr":"6e1ced0142726b32713b4fb2ca4a62c8b714c660149361fc8ad50ae5c9f2e6c5"}