Growing excitement around permissionless blockchains is uncovering its latent scalability concerns. Permissioned blockchains offer high transactional throughput and low latencies while compromising decentralization. In the quest for a decentralized, scalable blockchain fabric, i.e., to offer the scalability of permissioned blockchain in a permissionless setting, we present L4L to encourage decentralization over the permissioned Libra network without compromising its sustainability. L4L employs delay towers, -- puzzle towers that leverage verifiable delay functions -- for establishing identity in a permissionless setting. Delay towers cannot be parallelized due to their sequential execution, making them an eco-friendly alternative. We also discuss methodologies to replace validators participating in consensus to promote compliant behavior. Our evaluations found that the cost of enabling decentralization over permissioned networks is almost negligible. Furthermore, delay towers offer an alternative to existing permissionless consensus mechanisms without requiring airdrops or pre-sale of tokens.
翻译:无许可证的路障周围日益增加的兴奋情绪正在揭开其潜在的可伸缩性关切。 被允许的路障提供了高交易量和低拖延,同时损害了权力下放。 在寻求一种分散的、可伸缩的路障结构的过程中,我们提出L4L,鼓励在无许可证的环境下对已获准的利布拉网络实行权力下放,同时不损害其可持续性。 L4L使用延迟塔,即利用可核实的延迟功能的谜塔,在无许可证的环境中建立身份。延缓塔由于相继执行而不能平行,因此成为生态友好的替代办法。我们还讨论了取代参与共识的验证者以促进合规行为的方法。我们的评估发现,允许对已许可的网络实行权力下放的成本几乎微不足道。此外,延迟塔提供了一种替代现有无许可证的协商一致机制的替代方法,而无需空投或预先出售标物。