Recent research underscores the inherent challenge of achieving perfect fairness in blockchain transaction ordering, as different nodes naturally perceive transactions in varying sequences. This discrepancy arises from the decentralized nature of blockchain networks, where each node may receive and process transactions at different times. To address this issue, newer protocols such as Aequitas and Themis have been developed. These protocols aim to enhance fairness by employing cryptographic proofs, which help ensure a more equitable transaction ordering across the network, though perfect fairness remains elusive.