Anza, the Solana Blockchain Infrastructure Company, has been spin-off from Solana Labs and proposed a new stake proof consensus called Alpenglow. Alpenglow is a data distribution protocol that replaces voters who process voting transactions and block final logic, and the time stamp system of Solana's historical proofs, with the aim of reducing the time it takes for all nodes to agree to the state of the network.
According to researchers at ANZA, Alpenglow breaks the delay limit and achieves finality in around 150 ms, comparable to the internet's infrastructure. The replacement of TowerBft, Lotor aims to complete the block in one round if 80% of the stock participates. The two voting modes are integrated and run simultaneously, and finality occurs as soon as the speed of the two passes completes.
The project's whitepaper points out that the move to Alpenglow does not completely protect Solana from network outages experienced in the past. Solana currently has only one production-ready client. This means that Agave's security vulnerabilities can disrupt the entire Solana network. However, a new independent validator client called Firedancer is set to be released at Solana Mainnet this year. This provides client diversity to the network.
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