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arXiv · 2506.14124

From Permissioned to Proof-of-Stake Consensus

Jovan Komatovic·Andrew Lewis-Pye·Joachim Neu·Tim Roughgarden·Ertem Nusret Tas
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Abstract

This paper presents the first generic compiler that transforms any permissioned consensus protocol into a proof-of-stake permissionless consensus protocol. For each of the following properties, if the initial permissioned protocol satisfies that property in the partially synchronous setting, the consequent proof-of-stake protocol also satisfies that property in the partially synchronous and quasi-permissionless setting (with the same fault-tolerance): consistency; liveness; optimistic responsiveness; every composable log-specific property; and message complexity of a given order. Moreover, our transformation ensures that the output protocol satisfies accountability (identifying culprits in the event of a consistency violation), whether or not the original permissioned protocol satisfied it.

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Jovan Komatovic, Andrew Lewis-Pye, Joachim Neu, Tim Roughgarden, Ertem Nusret Tas. 2025-06-17. From Permissioned to Proof-of-Stake Consensus. https://doi.org/10.4230/lipics.aft.2025.21

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