Prospective Hybrid Consensus for Project PAI

Autor: Harvilla, Mark, Du, Jincheng
Rok vydání: 2019
Předmět:
Druh dokumentu: Working Paper
Popis: PAI Coin's Proof-of-Work (PoW) consensus mechanism utilizes the double SHA-256 hashing protocol-- the same mechanism used by Bitcoin Core. This compatibility with classic Bitcoin-style mining provides low barrier to entry for PAI Coin mining, consequently rendering the PAI Coin network vulnerable to so-called 51% attacks, among others. To mitigate such risks, this paper proposes a hybrid Proof-of-Work, Proof-of-Stake (PoS) consensus mechanism and provides a detailed technical analysis of how such a mechanism would counter some of the PAI Coin network's inherent vulnerabilities, if successfully implemented. A detailed technical outline of blockchain-based PoW & PoS consensus, including their advantages and disadvantages, when used both independently and in the context of the hybrid model, is provided. An economic analysis of attacking a hybrid-powered PAI Coin network is presented, and a final recommendation for future development of PAI Coin consensus is made.
Comment: 24 pages, 3 figures; A Japanese translation is available in previous version V2 [arXiv:1902.02469v2]; A Korean translation is available in previous version V3 [arXiv:1902.02469v3]; A Simplified Chinese translation is available in previous version V4 [arXiv:1902.02469v4]
Databáze: arXiv