Definition ∞ Protocol Consistency refers to the property of a blockchain or distributed system where all participating nodes adhere to the same set of rules and maintain an identical, synchronized record of transactions. This ensures that every participant perceives the same sequence of events and the same state of the ledger. It is fundamental for the reliability of decentralized networks.
Context ∞ Maintaining protocol consistency is a core challenge and objective in decentralized systems, especially as networks scale and experience varying conditions. Any deviation can lead to network forks or data discrepancies, undermining trust and functionality. Developers continuously work to refine consensus algorithms and network communication to uphold this essential property across all nodes.