Finality refers to the assurance that a transaction is irreversible and settled. Once a transaction achieves finality, it cannot be changed or canceled, meaning the assets or tokens involved are securely transferred.In most blockchain systems, finality can vary. Some use consensus mechanisms that may take time to reach full agreement among participants. This can lead to instances where a transaction appears confirmed but is still at risk of being reverted if the network’s consensus hasn’t fully settled. There are two main types of finality: weak and strong. Weak finality allows for the possibility of a transaction being reversed if a longer chain is created. Strong finality guarantees that once a transaction is confirmed, it is secure against any potential reversals.Achieving finality is crucial for trust in the system, as users need confidence that their transactions will be honored and that there won’t be unexpected changes after confirmation. Various protocols handle finality differently, often influencing how quickly transactions can be considered complete.