Casper the Friendly Finality Gadget

论文作者:Vitalik Buterin; Virgil Griffith

论文发表刊物:arXiv

论文链接:点击跳转

摘要: We introduce Casper, a proof of stake-based finality system which overlays an existing proof of work blockchain. Casper is a partial consensus mechanism combining proof of stake algorithm research and Byzantine fault tolerant consensus theory. We introduce our system, prove some desirable features, and show defenses against long range revisions and catastrophic crashes. The Casper overlay provides almost any proof of work chain with additional protections against block reversions.

推荐人: bencq

推荐理由: The paper introduces Casper, a practical mechanism to help ethereum transfers from PoW to PoS. Security and availability are guaranteed. From ethereum 1.0 to ethereum 2.0.






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