{"p":"can-20","op":"mint","tick":"can","amt":"1000","rows":[{"df":"qa","content":[{"q":"What is the role of digital signatures in transactions within the blockchain?","a":"Identity authentication: Digital signatures can ensure the legitimacy of the identity of the transaction initiator, preventing malicious nodes from impersonating legitimate users to conduct transactions. By using a private key to sign transaction information, verifiers can use a  public key to verify the signature, thereby confirming the identity of the transaction initiator."}]}],"pr":"527b4c85dcf6cd62d06e9ce96d6dfd8af6f77a10609164ff72ee7beb5abc3bd3"}