Technical design

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Votor runs two concurrent voting processes, finalizing blocks as soon as the faster of the two paths completes, which boosts scalability and responsiveness.

Votor is designed to replace TowerBFT by enabling single-round block finalization if 80% of stake participates, or two-round finalization if 60% of stake is responsive.

Alpenglow introduces two core components - Votor, which manages voting and block finalization, and Rotor, which replaces Solana’s proof-of-history with a more efficient data dissemination protocol.

Alpenglow aims to achieve block finality in approximately 150 milliseconds, enabling Solana to rival traditional Web2 internet infrastructure in terms of responsiveness.

Anza’s researchers stated that the Alpenglow model offers extremely low-latency finalization while maintaining robustness under adverse network conditions.

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