Posts from November 2013

Bitcoin was having problems with LevelDB. We identified and fixed the bug. In this article, we'll talk a little about LevelDB, Bitcoin, and our fix.
New measurements show that successful selfish mining attacks are quite feasible.

Cash-Boycotts: How to Use Bitcoins for Social Change

Bitcoin's unique features allow it to be used to for social causes. A cash boycott is one such way to affect social change.

HyperDex 1.0RC5

HyperDex 1.0RC5 packs a ton of new features.
The Feds testified exuberantly in favor of Bitcoins yesterday, driving the BTC price through the roof to $900 USD. This is my quick reaction to what happened and what we should do about it.
There is now a visual simulator for our selfish mining attack.
There have been some early, and often misplaced, responses to the vulnerabilities we discovered in the Bitcoin system. This post addresses them.
Came across a video describing how Bitcoin works for a non-techie audience.
The claim that our results were previously known to the Bitcoin community is specious.
Fairweather mining has been suggested to argue that selfish mining would be a short-lived strategy, but fairweather mining analysis is flawed because it does not take proofs of work into account.
Policy regarding comments.
If the health of your cryptocurrency requires Gordon Gekko to make sacrifices, it is doomed.
Some clarifications and answers to frequently asked questions about the selfish mining attack on Bitcoin.
We discovered an attack against the Bitcoin mining protocol that can have a significant impact on the Bitcoin community.