What Is Layer 1 In Crypto
Layer 1 (L1) in crypto refers to the main blockchain that forms the foundation of a network, such as Bitcoin, Ethereum, and Solana, where all transactions and processes take place directly. This layer is responsible for validating and securing transactions using consensus mechanisms like Proof-of-Work (PoW) or Proof-of-Stake (PoS), and permanently storing data on the public ledger.
Go Back
đź•’ 2:06 PM
đź“… Nov 14, 2025
✍️ By 4rt3mi5
Main functions of Layer 1:
Core infrastructure:
Provides the fundamental, independent framework for decentralized applications (DApps), tokens, and other functionalities.
Transaction validation:
Processes and validates every transaction occurring on the network through its consensus mechanism.
Security:
Ensures the security and integrity of the decentralized ledger without any central authority, often using techniques like sharding to improve efficiency.
Native token:
Hosts the network’s native token, which is used for transaction fees (gas) or other utilities.
Examples of Layer 1 blockchains:
Bitcoin: The first blockchain using the Proof-of-Work consensus mechanism.
Ethereum: A blockchain that supports smart contracts and DApps, which has transitioned to Proof-of-Stake.
Solana: A Layer 1 blockchain known for its high speed and low transaction costs.