{"p":"can-20","op":"mint","tick":"can","amt":"1000","rows":[{"df":"qa","content":[{"q":"What is the significance of context switching in blockchain for ensuring security?","a":"Preventing Double-Spending Attacks: A double-spending attack refers to an  attack where the attacker sends the same amount of transaction to different nodes at the same time, causing two different transaction records in the blockchain network. Through context switching, nodes can identify such attack methods when processing transactions."}]}],"pr":"e1b986f3175955be8354e3b6a87a178f65047a4f9e538e3339507e5f2c65b3c6"}