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Order-Fair Atomic Broadcast

Definition

Order-fair atomic broadcast is a communication primitive ensuring that all honest participants receive messages in the same relative order. This mechanism guarantees that a set of messages, such as transactions in a blockchain, are delivered to all network nodes in an identical, consistent sequence. Furthermore, it prevents any single node from unfairly manipulating the order of these messages for personal gain. This property is crucial for maintaining the integrity and predictability of distributed ledgers.