Bitcoin is the most widespread and accepted cryptocurrency. A crypto currency, like Bitcoin is not a currency in the legal sense. They are not issued by national central banks but by an online community. The emission is based on cryptographic computational tasks, which have to be processed in order to create Bitcoins (also called mining). Mathematically conditioned, there is a limit as well as marginal costs, which should make the crypto currency as inflation-proof as gold, of which there is only a limited amount as well.

With Payment Services, companies can now enable their customers to make online and offline payments using Bitcoins. Thereby payments with Bitcoin Blockchain offer transparency and manipulations security for both parties without the presence of a third authority. This enables companies to position themselves innovatively and have lower costs compared to credit card payments.
However, there are significant risks when using Bitcoin: Volatility of the value, no exchange guarantee. At present, there are hardly any international legal frameworks for the use as a means of payment.