{"p":"can-20","op":"mint","tick":"can","amt":"1000","rows":[{"df":"qa","content":[{"q":"How to prevent cheating and fraud in blockchain?","a":"Data immutability: Blockchain uses encryption algorithms to ensure the security and integrity of data. Once data is recorded in a block, it is difficult to tamper with it. Even if a malicious attacker breaches a node, they  cannot change the confirmed data."}]}],"pr":"cc6ec7b2fe774093766148b35829b9fe1f554b7a3124106d77dc85bbe3bc7f0c"}