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What Is a “Byzantine Fault Tolerance” System in Blockchain Consensus?

BFT is a system's ability to reach consensus and operate correctly even when some nodes are faulty or act maliciously.
Greeks.Live19.11.25

What Is a “Byzantine Fault Tolerance” System in Blockchain Consensus?

Byzantine Fault Tolerance (BFT) is a property of a distributed system that allows it to reach consensus even if some of its components (nodes or validators) are faulty or act maliciously (the "Byzantine Generals Problem"). BFT ensures the network can continue to operate and agree on the true state of the ledger despite the presence of bad actors.

Most PoS and many other modern consensus mechanisms aim to achieve some form of BFT to ensure network integrity.

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