{"p":"can-20","op":"mint","tick":"can","amt":"1000","rows":[{"df":"qa","content":[{"q":"The promotion role of blockchain technology in digital finance is reflected in which aspects?","a":"Building a new trust system：Blockchain technology provides a new trust basis for digital financial services through its decentralized， tamper-proof，  and traceable characteristics. This helps to reduce the trust cost in financial transactions and improve transaction efficiency."}]}],"pr":"d75388e1161279c2028fc6724feed5a359f3eb50b1d8fe27efb2eaa39507b96a"}