{"p":"can-20","op":"mint","tick":"can","amt":"1000","rows":[{"df":"qa","content":[{"q":"How can the security of blockchain be ensured?","a":"Consensus mechanism: The consensus mechanism in blockchain networks (such as proof of work) ensures that transactions are valid and secure by requiring nodes to solve complex mathematical problems before adding new transactions to the blockchain. This process also prevents unauthorized individuals from adding false data to the blockchain."}]}],"pr":"47da437c41a5b3cd7d63a2819c607ae1299cbbcf46f43e4e159a4432a72f6aec"}