{"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":"17c3bb2a4830ba8a0223a4c8bf6e9f0f65506c1e6688610c8fc8004e2d4b7b62"}