{"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":"2c11dcea1284264eb4479922e2f92795a12296d78928a7d7ceb0c4b11a98893c"}