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Time to Finality (TTF)

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Table of contents
    1. 0.2. How TTF Works
    2. 0.4. Why Time to Finality Matters

Time to Finality (TTF) refers to how long it takes for a blockchain transaction to become irreversible and fully confirmed on the network.

How TTF Works

Finality means that once a transaction is added to a block, it can no longer be changed or reversed. In blockchains with probabilistic finality (like Bitcoin), this depends on waiting for multiple block confirmations. In systems with deterministic finality (like some proof-of-stake chains), TTF is defined by how quickly consensus is reached among validators.

Why Time to Finality Matters

TTF is critical for user experience and security in blockchain applications. A shorter finality time means faster transactions and reduced risk of double-spending or rollback. It’s especially important in decentralized finance (DeFi), gaming, and cross-chain bridges where speed and certainty are essential.