What Are Cryptocurrencies?

What Are Cryptocurrencies? Before we take a closer look at some of these alternatives to Bitcoin (BTC), let’s step back and briefly examine what we mean by terms like cryptocurrency and altcoin. A cryptocurrency, broadly defined, is virtual or digital money that takes the form of tokens or “coins.” Though some cryptocurrencies have ventured into the physical world with credit cards or other projects, the large majority remain entirely intangible. The “crypto” in cryptocurrencies refers to complicated cryptography that allows for the creation and processing of digital currencies and their transactions across decentralized systems. Alongside this important “crypto” feature is a common commitment to decentralization; cryptocurrencies are typically developed as code by teams who build in mechanisms for issuance (often, although not always, through a process called mining) and other controls. Cryptocurrencies are almost always designed to be free from government manipulation and control—although, as they have grown more popular, this foundational aspect of the industry has come under fire. The cryptocurrencies modeled after Bitcoin are collectively called altcoins, and in some cases, shitcoins, and have often tried to present themselves as modified or improved versions of Bitcoin. Though some of these currencies may have some impressive features that Bitcoin does not, matching the level of security that Bitcoin’s networks achieve largely has yet to be seen by an altcoin. Below, we’ll examine some of the most important digital currencies other than Bitcoin. First, though, a caveat: It is impossible for a list like this to be entirely comprehensive. One reason for this is the fact that there are more than 8,000 cryptocurrencies in existence as of January 2022.1 Though many of these cryptos have little to no following or trading volume, some enjoy immense popularity among dedicated communities of backers and investors. Beyond that, the field of cryptocurrencies is always expanding, and the next great digital token may be released tomorrow. Though Bitcoin is widely seen as a pioneer in the world of cryptocurrencies, analysts adopt many approaches for evaluating tokens other than BTC. It’s common, for instance, for analysts to attribute a great deal of importance to ranking coins relative to one another in terms of market capitalization. We’ve factored this into our consideration, but there are other reasons why a digital token may be included in the list. Types of Altcoins Cryptocurrencies Cryptocurrencies are intended for payments, transmitting value (akin to digital money) across a decentralized network of users. Many altcoins (i.e., those that are not Bitcoin or sometimes Ethereum) are classified in this way and may sometimes be called value tokens. Tokens There are also blockchain-based tokens that are meant to serve a different purpose from that of money. One example could be a token issued as part of an initial coin offering (ICO) that represents a stake in a blockchain or decentralized finance (DeFi) project. If the tokens are linked to the value of the company or project, they can be called security tokens (as in securities like stocks, not safety). Other tokens have a particular use case or function. Examples include Storj tokens, which allow people to share files across a decentralized network, or Namecoin, which provides decentralized Domain Name System (DNS) service for Internet addresses.23 These are known as utility tokens. Today, while many users of crypto understand and appreciate these differences, traders and lay investors may not notice the difference because all categories of token tend to trade on crypto exchanges in the same way.