{"p":"can-20","op":"mint","tick":"can","amt":"1000","rows":[{"df":"qa","content":[{"q":"What are the technical principles of private blockchain networks?","a":"Cryptographic Protection: The private  network employs cryptographic techniques such as asymmetric encryption and hashing algorithms to encrypt and decrypt data, safeguarding secure data transmission and privacy protection."}]}],"pr":"9a53051653a5e2815d0661e32b1f3a66fe36b626d81cca59499a0a24e1ab3dc7"}