A new proof-of-work mechanism for bitcoin

作者：Ning Shi · 发表于：Financial Innovation · 年份：2016 · DOI：10.1186/s40854-016-0045-6 · 被引用次数：70 · 研究领域：Blockchain Technology Applications and Security、Spam and Phishing Detection、Advanced Steganography and Watermarking Techniques

Bitcoin system, when more than 51% computing power is controlled by a single node, the block chain can be distorted maliciously. This is called 51% attack which is a well-known potential risk that could destroy the Bitcoin system. The paper proves that under the current proof-of-work mechanism, computing power eventually will be centralized at a single node if miners are rational enough. The paper propose a new proof-of-work mechanism that improves decentralization and reduces the risk of 51% attack without increasing the risk of Sybil attack. This new mechanism introduces a series of principles such as Career open to all talents, without distinction of birth, Distribution according to labor and All Men are created equal.