{"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":"16eda1bcaa9e3a2475fd1c5644b06f8d1622e0cb7e0d7457bf34fe67e8413d2a"}