Proposer selection in EIP-7251
CoRR(2024)
摘要
Immediate settlement, or single-slot finality (SSF), is a long-term goal for
Ethereum. The growing active validator set size is placing an increasing
computational burden on the network, making SSF more challenging. EIP-7251 aims
to reduce the number of validators by giving stakers the option to merge
existing validators. Key to the success of this proposal therefore is whether
stakers choose to merge their validators once EIP-7251 is implemented. It is
natural to assume stakers participate only if they anticipate greater expected
utility (risk-adjusted returns) as a single large validator. In this paper, we
focus on one of the duties that a validator performs, viz. being the proposer
for the next block. This duty can be quite lucrative, but happens infrequently.
Based on previous analysis, we may assume that EIP-7251 implies no change to
the security of the protocol. We confirm that the probability of a validator
being selected as block proposer is equivalent under each consolidation regime.
This result ensures that the decision of one staker to merge has no impact on
the opportunity of another to propose the next block, in turn ensuring there is
no major systemic change to the economics of the protocol with respect to
proposer selection.
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