Q » What is the difference between deterministic and probabilistic finality?

Jason

02 Nov, 2025

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A » Deterministic finality guarantees that once a transaction is confirmed, it is immutable, providing certainty and security. Probabilistic finality, however, means that a transaction becomes increasingly unlikely to be reversed as more blocks are added, reaching a high probability of permanence over time. This distinction is crucial in blockchain systems, influencing transaction speed, security, and overall network performance.

Michael

03 Nov, 2025

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All Other Answer

A »Deterministic finality guarantees a transaction is irreversible once confirmed, whereas probabilistic finality relies on the probability of a transaction being included in the blockchain, with the likelihood of reversal decreasing as more blocks are added. Bitcoin uses probabilistic finality, while some other blockchains achieve deterministic finality.

David

03 Nov, 2025

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