ANALYSIS OF CONSENSUS MECHANISMS IN BLOCKCHAIN SYSTEMS
This article provides an analysis of the primary consensus mechanisms employed in blockchain networks, namely Proof-of-Work (PoW), Proof-of-Stake (PoS), Delegated Proof-of-Stake (DPoS), Proof-of-Authority (PoA), and Proof-of-Capacity (PoC). The study thoroughly describes the operational algorithms of each mechanism, examining their inherent advantages and disadvantages. It conducts a comparative analysis and offers tailored recommendations for the implementation of each consensus algorithm based on the specific challenges and objectives of blockchain systems.
Furthermore, the work emphasizes how the individual parameters of these mechanisms influence the processes of block validation and generation. It explores the impact of these factors on the overall performance of blockchain networks, particularly in terms of security, decentralization, scalability, and energy efficiency.
By integrating theoretical insights with practical considerations, this research aims to guide both practitioners and researchers in the selection and optimization of consensus protocols. It also lays the groundwork for future investigations into hybrid models that may combine the strengths of multiple consensus approaches to better address evolving security challenges and the increasing demands of decentralized applications.
Bulgakov V.D., Gvozdevsky I.N. Analysis of consensus mechanisms in blockchain systems // Research result. Information technologies. – Т.10, №1, 2025. – P. 24-35. DOI: 10.18413/2518-1092-2025-10-1-0-3
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