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.
A Layer 1 blockchain is the main, underlying blockchain network in a crypto ecosystem. It has its own rules for validating transactions, adding blocks, securing the ledger, and usually its own native coin used to pay transaction fees or reward validators and miners. Bitcoin, Ethereum, Solana, and Cardano are common examples of Layer 1 blockchains because they do not rely on another blockchain to settle their core transactions.
Layer 1 matters because it is the foundation that other crypto activity can be built on, including tokens, decentralized apps, NFTs, and Layer 2 scaling networks. Its design affects security, transaction costs, speed, decentralization, and what developers can build. For example, Ethereum is a Layer 1 that supports smart contracts, while a Layer 2 such as Arbitrum processes activity more efficiently but ultimately uses Ethereum for settlement and security. In simple terms, Layer 1 is like the base road system, while Layer 2 solutions are extra lanes or express routes built to reduce congestion.
Other terms in Altcoins
Altcoin
Any cryptocurrency other than Bitcoin, often designed with different features, trade-offs, or use cases.
Genesis Block
The first block in a blockchain, used to start the network’s ledger and establish its initial rules or coin distribution.
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.