{"p":"can-20","op":"mint","tick":"can","amt":"1000","rows":[{"df":"qa","content":[{"q":"What are the issues surrounding the adoption of blockchain technology?","a":"Privacy protection: Although  blockchain adopts encryption technology, the transaction data is still transparent, which makes it difficult to protect users' privacy and maintain security."}]}],"pr":"e4b48f916d53129edccc8ee0f611f81666532774fe25440fc1ce156185d47609"}