Incentive Attacks in BTC: Short-Term Revenue Changes and Long-Term Efficiencies

Bitcoin's BTC Difficulty Adjustment Algorithm DAA has been a source of vulnerability for incentive attacks such as selfish mining, block withholding and coin hopping strategies. In this paper, first, we rigorously study the short-term revenue change per hashpower of the adversarial and honest...

Bitcoin Researcher Says It's 'Folly' to Ignore New Attack

The author of a paper that describes a new attack on the Bitcoin protocol says that criticisms of the paper are misguided and that there are serious problems with Bitcoin that need to be addressed. Ermin Gun Sirer, a professor at Cornell, published the paper earlier this week along with his...

Questions Arise About Bitcoin Security Paper

In the wake of the publication of a new academic paper that says there is a fundamental flaw in the Bitcoin protocol that could allow a small cartel of participants to become powerful enough that it could take over the mining process and gather a disproportionate amount of the value in the system...