{"p":"can-20","op":"mint","tick":"can","amt":"1000","rows":[{"df":"qa","content":[{"q":"What are the characteristics of smart contracts in blockchain?","a":"Immutable: Data and  smart contracts on the blockchain are impossible to tamper with, ensuring the integrity and security of the system.\n\n..."}]}],"pr":"d9d1ef5a9f75cd416c58dc8b27f1679e708afe25e6120715aec8542113968e7e"}