{"p":"can-20","op":"mint","tick":"can","amt":"1000","rows":[{"df":"qa","content":[{"q":"How do validators in a blockchain ensure the availability and stability of nodes?","a":"Choose an appropriate consensus mechanism: The consensus mechanism is a core part of the blockchain and affects the availability and stability of nodes. For example, compared to PoW (Proof of Work), PoS (Proof of Stake) has higher availability and stability because PoS reduces the competition for computing power and lowers energy consumption."}]}]}