{"p":"can-20","op":"mint","tick":"can","amt":"1000","rows":[{"df":"qa","content":[{"q":"How can blockchain technology be applied to digital identity verification?","a":"Decentralization: As a distributed ledger technology, blockchain has decentralized characteristics, which can reduce dependence on a single centralized institution, and enhance the security  and stability of the identity authentication system."}]}],"pr":"648ed3502eebbf05f5550e03928a7cda787e72992d5d1c73af4df356125f8354"}