Bitcoin was released in 2009, making it the first and most significant cryptocurrency. It was invented by "Satoshi Nakamoto", whose real identity is unknown. Bitcoin consists of a monetary unit and a payment system. The digital currency (BTC) is created and managed in a global, decentralised computer network using a special software solution. The global system is like a decentralised database in which all transactions are logged in the form of a blockchain. Bitcoin attracted worldwide attention when it increased in value in 2017.

Ether (ETH) is the internal payment system for processing transactions for the global platform Ethereum. The Ethereum platform is used for distributed apps and facilitates the creation, execution, and management of smart contracts.

Litecoin (LTC) is a global and decentralised payment network similar to the Bitcoin network. The essential differences between Litecoin and Bitcoin are in their technology. Key aspects are the transaction speed, the maximum offering of the coins concerned and the algorithm used.

Ripple (XRP) is an open-source protocol based on a public database. The Ripple network supports all standard currencies. XRP appeared in 2012 and, unlike Bitcoin, is not based on the blockchain and the coin cannot be mined.

Bitcoin Cash was created from the original Bitcoin blockchain by a hard fork (a community-activated protocol or code update) in August 2017. The goal of the fork was to increase the block size and thereby significantly reduce the transaction throughput (number of transactions processed per time). More informationen: https://www.bitcoincash.org

UNI is the native cryptocurrency of the Uniswap decentralized trading protocol.

Uniswap is anchored on the Ethereum blockchain and is used to exchange ERC20 tokens. UNI itself is designed as an ERC20 token and, when used in the Uniswap protocol, enables users to exercise governance rights over the design of the Uniswap protocol.

LINK is the cryptocurrency of the decentralized network Chainlink.
Chainlink verifies external data for smart contracts on the Ethereum Blockchain and then makes this data available to the public (through the Oracle Network). This allows smart contracts to access resources such as data feeds, web APIs, or even weather data. Participants of the Chainlink network are compensated via the cryptocurrency LINK (ERC677 token) if they operate Chainlink nodes and fulfill data requests.