Who is Liable for an Attack on Cryptocurrency Consensus?

17 Pages Posted: 29 Aug 2019 Last revised: 5 Mar 2020

Date Written: August 25, 2019

Abstract

Cryptocurrencies are based on cryptography-based asset disposals broadcasted peer-to-peer to be validated decentrally according to consensus mechanisms in compliance with consented protocols. The consensus mechanisms are crucial for reaching a consistent state of a cryptocurrency ledger in a decentralized manner. However, there are several ways to attack consensus. The technical aspects of such attacks have been well explored in the literature, but the legal consequences of such attacks have been less explored. This paper discusses possible legal bases for liability for attacks on consensus and the limits of liability in deterring attacks and providing victim compensation.

Keywords: Blockchain, Consensus, Cryptocurrencies, Liability, Open Source

JEL Classification: E42, K13, K24, L17

Suggested Citation

Østbye, Peder, Who is Liable for an Attack on Cryptocurrency Consensus? (August 25, 2019). Available at SSRN: https://ssrn.com/abstract=3442597 or http://dx.doi.org/10.2139/ssrn.3442597

Peder Østbye (Contact Author)

Norges Bank ( email )

P.O. Box 1179
Oslo, N-0107
Norway

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