{"p":"can-20","op":"mint","tick":"can","amt":"1000","rows":[{"df":"qa","content":[{"q":"How does blockchain technology prevent replay attacks on transactions?","a":"Transaction uniqueness verification: In a blockchain network, each transaction contains a unique transaction ID, known as the hash value. The transaction hash value is generated based  on the transaction data, and the same transaction data will generate the same hash value. Therefore, when an attacker tries to replay the same transaction, the blockchain network will reject the transaction because its hash value is the same as the existing transaction hash value, thereby preventing the replay attack."}]}],"pr":"e3146fc43efe1d557e32681ad11359cab1b21cff2bad2e74710e3eaaf1f3a04b"}