A Time-Bound Signature Scheme for Blockchains

• URL: http://arxiv.org/abs/2510.03697v1
• Date: Sat, 04 Oct 2025 06:26:52 GMT
• Title: A Time-Bound Signature Scheme for Blockchains
• Authors: Benjamin Marsh, Paolo Serafino,
• Abstract summary: We introduce a modified Schnorr signature scheme to allow for time-bound signatures for transaction fee auction bidding and smart contract purposes.<n>We show the use of such a signature scheme leads to lower MEV revenue for builders.
• Score: 0.0
• License: http://creativecommons.org/licenses/by/4.0/
• Abstract: We introduce a modified Schnorr signature scheme to allow for time-bound signatures for transaction fee auction bidding and smart contract purposes in a blockchain context, ensuring an honest producer can only validate a signature before a given block height. The immutable blockchain is used as a source of universal time for the signature scheme. We show the use of such a signature scheme leads to lower MEV revenue for builders. We then apply our time-bound signatures to Ethereum's EIP-1559 and show how it can be used to mitigate the effect of MEV on predicted equilibrium strategies.

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