{"p":"can-20","op":"mint","tick":"can","amt":"1000","rows":[{"df":"qa","content":[{"q":"How is permission control ensured in a blockchain?","a":"Smart contracts: Smart contracts are programmable scripts that run on the blockchain, enabling automated execution of transactions based on predefined conditions."}]}],"pr":"c77f0f424aa7b17216b88b161cb2bd81d3939f9bafb03dbb8b57a2c8d82b099d"}