{"p":"can-20","op":"mint","tick":"can","amt":"1000","rows":[{"df":"qa","content":[{"q":"How can blockchain be applied to public services?","a":"Identity authentication: By utilizing the decentralized nature of blockchain, a secure, efficient, and transparent identity authentication system can be constructed. For example, by  chainizing personal information, educational background, certificates, and other data, the verification of personal identity can be realized, avoiding forgery and tampering."}]}],"pr":"98797057783cc46531426a86d29f135f8139b7a5de3801953f88f54361690b59"}