there is no need for the next 100 years of bitcoin predictions in 2019, there will be the emergence of a security token ecosystem, it is one way to consider the potential of security tokens, securities in the form of tokens, and token offering security by evaluating its predecessors, namely utility tokens and ICO, the economy of the token utility that most ICOs make uses the ERC-20, working as a means of incentives / rewards for customers. Utility tokens are not at all forms of equity in the underlying ICO project. Therefore, utility tokens in general have been considered as equity in the underlying ICO project, with token holders assuming the ICO project will run smoothly and ultimately will benefit them such as dividends .