{"p":"can-20","op":"mint","tick":"can","amt":"1000","rows":[{"df":"qa","content":[{"q":"What is the impact of the longest chain rule in blockchain on network stability?","a":"Preventing Double-Spending Attack: The longest chain rule ensures that at a given time, there is only one valid  chain in the network. This makes it difficult for attackers to simultaneously spend the same batch of digital currency in different places, thereby reducing the risk of double-spending attacks."}]}],"pr":"4fa91cfc790b892c1ca9dcf0126acb5d0dbbbe617b25a0ac7f12b7b15dd0bbe4"}