{"p":"can-20","op":"mint","tick":"can","amt":"1000","rows":[{"df":"qa","content":[{"q":"How is signature verification performed in blockchain?","a":"Signing: First, the user uses their own private key to process the hash value of  the information to be sent, generating a signature."}]}],"pr":"03b19adb56296aa7cca04a2eb6139584e242f703ba880aeb74c18c04e6e886c1"}