{"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":"Traceability: Every transaction in blockchain technology can be traced back to  its source, which helps to track and verify users' identities and behaviors in digital identity authentication."}]}],"pr":"c77c8e39cb8ac0fdeea13403d9a174b838301fde7909c21fa39dbd7bc9a71b31"}