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ABFT Meaning

Asynchronous Byzantine Fault Tolerance (ABFT) is a consensus property describing a network’s ability to achieve agreement among honest nodes even when message delivery is delayed arbitrarily or malicious nodes attempt to disrupt communication. ABFT systems make no assumptions about timing-messages may arrive late, out of order, or not at all for extended periods-yet consensus can still be reached.

Traditional Byzantine Fault Tolerance (BFT) models assume bounded latency and rely on synchrony or partial synchrony to guarantee liveness. ABFT removes these assumptions, allowing greater resilience in unpredictable network environments.

Key properties of ABFT include:

Tolerance for up to one-third malicious nodes, similar to BFT
No reliance on timing assumptions, making the system robust to network delays
Deterministic agreement on ordering and execution of transactions

A well-known example is HoneyBadgerBFT, which uses asynchronous atomic broadcast to ensure that honest nodes eventually agree on a sequence of transactions without requiring synchronized clocks or predictable message delivery. ABFT is particularly relevant for decentralized networks aiming to maintain high reliability under adverse conditions such as censorship attempts, congestion, or network partitioning.

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Finery Markets BVI Limited (“Finery Markets”) provides software, technology infrastructure, and related Information and Communication Technology (ICT) services on a Software-as-a-Service (“SaaS”) basis. Finery Markets acts solely as a software vendor and does not operate a trading platform, does not intermediate, match, execute, clear, or settle transactions, and does not engage in any activities that would require regulatory authorisation under applicable laws.

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