Initial coin offerings (ICOs) are now the focus of both the public's and the regulator's attention. ICOs are a digitalised method of raising capital in which an organisation issues tradable digital units (tokens) to finance a specific project or to develop it further. They are exclusively used to fund early stage projects of startups, often without a clear track record and with unclear success probability. In the course of the offering, the investor receives a token from the issuing organisation in exchange for cryptocurrencies (for example, bitcoin) or standard currencies (also referred to as fiat money). Tokens are created on a blockchain and exist as tradable digital units on distributed ledgers as a part of a protocol. For example, the Ethereum blockchain provides not only the cryptocurrency Ether, but also a platform to write smart contracts on the Ethereum blockchain, which makes it possible for market participants to easily generate and issue their own tokens, mostly on the basis of the ERC-20 token standard.
