सदा हंसते रहो जैसे हंसते हैं फूल, दुनिया के सारे गम तुम जाओ भूल, चारों तरफ फैलाओ खुशियों के गीत, इसी उम्मीद के साथ तुम्हें मुबारक हो बकरीद!!

This introduction explains the most important thing about cryptocurrencies. After you‘ve read it, you‘ll know more about it than most other humans. Today cryptocurrencies have become a global phenomenon known to most people. While still somehow geeky and not understood by most people, banks, governments and many companies are aware of its importance. In 2016, you‘ll have a hard time finding a major bank, a big accounting firm, a prominent software company or a government that did not research cryptocurrencies, publish a paper about it or start a so-called blockchain-project.