{"p":"can-20","op":"mint","tick":"can","amt":"1000","rows":[{"df":"qa","content":[{"q":"How does blockchain technology prevent 51% attacks?","a":"Adopt attack-resistant consensus algorithms: For example, adopt the Proof of Stake (POS) consensus algorithm, which  requires the attacker to possess a large amount of tokens to launch a successful attack, thereby increasing the cost of the attack."}]}]}