The Bulgarian energy sector is in a special state, which according to Assoc. Prof. Krasen Stanchev[1] can already be called a crisis, while according to former Prime Minister Ivan Kostov[2] it is pre-crisis. The facts are that Bulgaria is still a significant producer and exporter of electricity, but, due to foreign policy circumstances, a significant share of our …

One of the important questions about the social order is whether ideas determine the actions of the authorities or do the representatives of the authorities order the ideas they need? The question, posed in this way, is so general that any answer can be both right and wrong. There are enough world authorities who take opposing positions, …

Author: Stilgar This is the fourth part of our series "What is Bitcoin?". You can read the previous parts here, here and here. In the last part of the series, we posed the main problem that blockchain technology solves in the field of digital currencies - "double spend". But what would the so-called "double spend" attack actually look like...