Source: Cointelegraph
Original: “Solana Labs Offshoot Anza Proposes 'Major Transformation' of Network Consensus”
Anza, a Solana blockchain infrastructure company that has spun off from Solana Labs, has proposed a new proof-of-stake consensus protocol called Alpenglow. It is said to be “the biggest transformation in the Solana core protocol's history” and will compete with current internet infrastructure.
Quentin Kniep, Kobi Sliwinski, and Roger Wattenhofer from Anza stated on May 19, 2025: “We believe the launch of Alpenglow will be a turning point for Solana. Alpenglow is not just a new consensus protocol; it is the biggest transformation in the Solana core protocol since its inception.”
Alpenglow consists of two parts: Votor, which handles voting transactions and block finalization logic; and Rotor, a data distribution protocol that will replace Solana's historical proof-of-time-stamping system, aimed at reducing the time required for all nodes to reach consensus on the network state.
Anza's researchers claim: “Alpenglow will break existing latency limits.” The project anticipates that the actual finalization time for Alpenglow will reach about 150 milliseconds, comparable to internet infrastructure. They further explain:
“A median latency of 150 milliseconds not only means Solana is fast—it means Solana can compete with Web2 infrastructure in terms of responsiveness, potentially making blockchain technology applicable to a whole new category of applications that require real-time performance.”
Votor will replace TowerBFT, aiming to complete block finalization in one round with 80% stake participation, while requiring two rounds to complete with only 60% stake response.
These two voting modes are integrated and run simultaneously, with finalization occurring immediately after the faster of the two paths concludes.
Anza's researchers stated that this model will bring “unprecedented finalization latency,” while allowing it to operate more effectively under “adverse network conditions.”
The project's white paper notes that switching to Alpenglow does not fully protect Solana from the network disruption issues it has experienced in the past.
Currently, Solana has only one production-ready client, Agave, which means any security vulnerabilities in Agave could disrupt the entire Solana network.
However, a new independent validator client, Firedancer, is expected to launch on the Solana mainnet sometime this year, which will provide client diversification for the network.
Related: Vitalik Buterin Proposes New Ethereum (ETH) Scaling Solution: Introducing Partial Stateless Nodes
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