Finalization Logic refers to the process that determines when a transaction or a block of transactions is considered conclusively recorded on a blockchain. This concept is crucial for achieving consensus among network participants.In many systems, transactions go through multiple stages before finalization. Initially, a transaction may be included in a block but not yet confirmed by other nodes. Finalization occurs when enough confirmations are received, or when specific criteria are met, to ensure that the transaction cannot be reversed or altered.Different blockchains implement various approaches to finalization. For instance, Proof of Work relies on mining and the accumulation of work over time, while Proof of Stake uses validators who confirm the legitimacy of transactions. Some newer protocols utilize mechanisms such as instant finality, where transactions are confirmed almost immediately.Overall, finalization logic plays a vital role in maintaining the integrity and security of a blockchain, as it prevents double spending and ensures participants can trust the transaction history.