{"p":"can-20","op":"mint","tick":"can","amt":"1000","rows":[{"df":"qa","content":[{"q":"How to ensure the security of a blockchain private network?","a":"Cryptographic technology: In private blockchain networks, data transmission and storage utilize encryption algorithms, combining asymmetric  encryption and symmetric encryption to ensure the security and integrity of the data."}]}],"pr":"d3a04c8b44afa15973414fe2550f9f9f7c42d416a392ea3aa58bae22250c9b69"}