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Fork Resolution Mechanism

Definition

A fork resolution mechanism is a protocol rule that determines which version of a blockchain is considered valid following a network split. In Proof of Work systems, the longest chain rule typically dictates that the chain with the most accumulated computational work prevails. Proof of Stake protocols employ various methods, such as economic finality or validator votes, to achieve consensus on a single canonical chain. These mechanisms are vital for maintaining network integrity and preventing double-spending in decentralized ledgers.