Inertial Mining: Equilibrium Implementation of the Bitcoin Protocol

Fuente: arXiv
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Hauptverfasser: Mueller-Frank, Manuel, Pan, Minghao, Tamuz, Omer
Format: Preprint
Veröffentlicht: 2026
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author Mueller-Frank, Manuel
Pan, Minghao
Tamuz, Omer
author_facet Mueller-Frank, Manuel
Pan, Minghao
Tamuz, Omer
contents The value of proof-of-work cryptocurrencies critically depends on miners having incentives to follow the protocol. However, the Bitcoin mining protocol proposed by Nakamoto (2008) and implemented in practice is well known not to constitute an equilibrium: Eyal and Sirer (2018) construct a profitable deviation called ``selfish mining'' which relies on strategically delaying disclosure of newly mined blocks rather than publishing them immediately. We propose inertial mining, a novel mining protocol. When miners follow inertial mining, they produce the outcome intended by Nakamoto, i.e., a single longest chain. But unlike the Bitcoin mining protocol, inertial mining constitutes an equilibrium (assuming no miner controls more than half of the mining power). Indeed, neither selfish mining nor any other deviation is profitable. Furthermore, inertial mining only changes miners' behavior in the event of off-path forks, and can be implemented in Bitcoin without any changes to its consensus mechanism or blockchain architecture.
format Preprint
id arxiv_https___arxiv_org_abs_2604_06092
institution arXiv
publishDate 2026
record_format arxiv
spellingShingle Inertial Mining: Equilibrium Implementation of the Bitcoin Protocol
Mueller-Frank, Manuel
Pan, Minghao
Tamuz, Omer
Cryptography and Security
Computer Science and Game Theory
Theoretical Economics
The value of proof-of-work cryptocurrencies critically depends on miners having incentives to follow the protocol. However, the Bitcoin mining protocol proposed by Nakamoto (2008) and implemented in practice is well known not to constitute an equilibrium: Eyal and Sirer (2018) construct a profitable deviation called ``selfish mining'' which relies on strategically delaying disclosure of newly mined blocks rather than publishing them immediately. We propose inertial mining, a novel mining protocol. When miners follow inertial mining, they produce the outcome intended by Nakamoto, i.e., a single longest chain. But unlike the Bitcoin mining protocol, inertial mining constitutes an equilibrium (assuming no miner controls more than half of the mining power). Indeed, neither selfish mining nor any other deviation is profitable. Furthermore, inertial mining only changes miners' behavior in the event of off-path forks, and can be implemented in Bitcoin without any changes to its consensus mechanism or blockchain architecture.
title Inertial Mining: Equilibrium Implementation of the Bitcoin Protocol
topic Cryptography and Security
Computer Science and Game Theory
Theoretical Economics
url https://arxiv.org/abs/2604.06092