Which of the following is not true regarding crypto currencies:

Many cryptocurrencies are decentralized networks based on blockchain technology—a distributed ledger enforced by a disparate network of computers. One of the key characteristics of cryptocurrencies is that it allows the users to perform anonymous transactions. Most of the platforms involve system and method which facilitate the computation which is publically defined but maintains the privacy of the input data. A cryptocurrency is a form of digital asset based on a network that is distributed across a large number of computers. This decentralized structure allows them to exist outside the control of governments and central authorities.