{"p":"can-20","op":"mint","tick":"can","amt":"1000","rows":[{"df":"qa","content":[{"q":"What are the security challenges of blockchain technology at the technical level?","a":"Cryptographic security: Although blockchain technology employs cryptography to ensure the security of data transmission and access, as computing power increases, cryptographic algorithms may face the risk of being cracked. In addition, private key management and protection are also significant challenges for blockchain security."}]}],"pr":"9ebae3508ca027ec720281ac261028b756315201655359479213040cb6d633a5"}