Consensus Power Inequality: A Comparative Study of Blockchain Networks

• URL: http://arxiv.org/abs/2506.14393v1
• Date: Tue, 17 Jun 2025 10:45:41 GMT
• Title: Consensus Power Inequality: A Comparative Study of Blockchain Networks
• Authors: Kamil Tylinski, Abylay Satybaldy, Paolo Tasca,
• Abstract summary: This study provides a rigorous evaluation of consensus power inequality across five prominent blockchain networks.<n>A robust dataset, capturing network-specific characteristics, forms the foundation of analysis.<n>Through an in-depth comparative study, the paper identifies key disparities in consensus power distribution.
• Score: 0.0
• License: http://creativecommons.org/licenses/by/4.0/
• Abstract: The distribution of consensus power is a cornerstone of decentralisation, influencing the security, resilience, and fairness of blockchain networks while ensuring equitable impact among participants. This study provides a rigorous evaluation of consensus power inequality across five prominent blockchain networks - Bitcoin, Ethereum, Cardano, Hedera, and Algorand - using data collected from January 2022 to July 2024. Leveraging established economic metrics, including the Gini coefficient and Theil index, the research quantitatively assesses how power is distributed among blockchain network participants. A robust dataset, capturing network-specific characteristics such as mining pools, staking patterns, and consensus nodes, forms the foundation of the analysis, enabling meaningful comparisons across diverse architectures. Through an in-depth comparative study, the paper identifies key disparities in consensus power distribution. Hedera and Bitcoin demonstrate more balanced power distribution, aligning closely with the principles of decentralisation. Ethereum and Cardano demonstrate moderate levels of inequality. However, contrary to expectations, Ethereum has become more concentrated following its transition to Proof-of-Stake. Meanwhile, Algorand shows a pronounced centralisation of power. Moreover, the findings highlight the structural and operational drivers of inequality, including economic barriers, governance models, and network effects, offering actionable insights for more equitable network design. This study establishes a methodological framework for evaluating blockchain consensus power inequality, emphasising the importance of targeted strategies to ensure fairer power distribution and enhancing the sustainability of decentralised systems. Future research will build on these findings by integrating additional metrics and examining the influence of emerging consensus mechanisms.

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