Solana Alpenglow White Paper 2025-05-19.pdf - Google Drive
The fast block distribution component Rotor is based on erasure cod- ing. Rotor utilizes the bandwidth of participating nodes proportionally to their stake, alleviating the leader bottleneck for high throughput. As a result, total available bandwidth is used asymptotically optimally. Alpenglow features a distinctive “20+20” resilience, wherein the pro- tocol can tolerate harsh network conditions and an adversary controlling 20% of the stake. An additional 20% of the stake can be offline if the network assumptions are stronger. 1 Introduction “I think there is a world market for maybe five computers.” – This quote is often attributed to Thomas J. Watson, president of IBM. It is disputed whether Watson ever said this, but it was certainly in the spirit of the time as similar quotes exist, e.g., by Howard H. Aiken. The quote was often made fun of in the last decades, but if we move one word, we can probably agree: “I think there is a market for maybe five world computers.” So, what is a w
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