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devcon 7 / sybil proof mechanisms

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Sybil-Proof Mechanisms

Duration: 00:08:54

Speaker: Christoph Schlegel

Type: Lightning Talk

Expertise: Intermediate

Event: Devcon

Date: Nov 2024

I discuss a fundamental impossibility result on proposer selection mechanisms: If different actors can generate different value from block proposal (or sequencing) rights, the only sybil-proof and incentive compatible way of assigning proposal rights is through an (arguably centralizing) auction. In other words, any proposer selection mechanism can at most satisfy two out of three fundamental requirements: incentive compatibility, sybil-resistance and decentralization.

Categories

PBSMechanism designGame TheoryMEVappsGame TheoryMechanism designMEVPBS
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