Discover the importance of finality in blockchain, its types (probabilistic, deterministic and economic), and how it ensures transaction security and immutability.
Finality in blockchain means reaching a point where a transaction is permanent and irreversible. Once a transaction achieves finality, it’s locked in and cannot be altered or undone. This is crucial in maintaining trust in blockchain systems, as it guarantees that transactions are secure and records remain immutable.
Think of blockchain finality like wet cement. When you first pour cement, you can still make changes — move it, shape it, or even erase a footprint. But once it hardens, it’s set in stone, and no one can alter it. Similarly, a blockchain transaction starts as “wet cement” during the confirmation process. Once the network reaches consensus and finality is achieved, that transaction is “hardened,” becoming permanent and unchangeable.
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