{"p":"can-20","op":"mint","tick":"can","amt":"1000","rows":[{"df":"qa","content":[{"q":"How can double-spending attacks be implemented in a blockchain?","a":"The attacker utilizes their computational advantage to create a new branch chain in the blockchain network and  creates a block containing transaction A on the branch chain."}]}],"pr":"87ff37c29a6c371689e9ef87b77c0e65e745779ceabcf18a671d6e9f522c431e"}