Altcoin
Any cryptocurrency other than Bitcoin, often designed with different features, trade-offs, or use cases.
An altcoin is any cryptocurrency that is not Bitcoin. The name comes from “alternative coin,” because early altcoins were created as alternatives to Bitcoin’s design. Some altcoins are independent blockchains, such as Litecoin or Ethereum, while others are tokens built on existing blockchains. They may aim to improve speed, reduce transaction costs, support smart contracts, enable privacy features, or serve a specific role in an app or network.
Altcoins matter because they are where much of crypto’s experimentation happens. Developers use them to test new consensus methods, governance models, decentralized finance tools, gaming economies, and other blockchain-based services. For example, Bitcoin is mainly known as a decentralized digital currency and store-of-value network, while Ethereum is an altcoin network built to run smart contracts and decentralized applications. Altcoins can vary widely in quality, security, liquidity, and usefulness, so the term describes a broad category rather than a guarantee of value or legitimacy.
Other terms in Altcoins
Genesis Block
The first block in a blockchain, used to start the network’s ledger and establish its initial rules or coin distribution.
Layer 1 Blockchain
A base blockchain network that runs its own consensus, validates transactions, and provides the foundation for tokens, apps, and higher-layer systems.
Top Market Cap Coin
A cryptocurrency ranked among the largest by market capitalization, calculated by multiplying its price by its circulating supply.
Whitepaper (Crypto)
A document that explains a crypto project’s goals, technology, token design, and roadmap so readers can evaluate what is being built.