Layer 1
Layer 1 (L1) is the base layer of a blockchain network that settles transactions and provides security, such as Bitcoin, Ethereum, and Solana.
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Layer 1 (L1) is the base layer of a blockchain network that settles transactions and provides security, such as Bitcoin,...
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Sep 2026 · Score de fraîcheur: 50%
Qu'est-ce que Layer 1 ?
Layer 1 (L1) is the base layer of a blockchain network that settles transactions and provides security, such as Bitcoin, Ethereum, and Solana.
- Category
- concept
- Type
- Authority Node
- Sources
- 1
An L1 maintains its own consensus, state, and security — validators or miners secure the network, and blocks are finalized on-chain. Applications either run directly on the L1 or settle their data/proofs to it (as rollups do). L1s compete o
Layer 1 design determines the base trade-offs of the entire stack: security, decentralization, and cost. Ethereum's L1 became the settlement layer for rollups; other L1s (Solana, Aptos) push high throughput natively. L1 strategy shapes whic
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Associés
1. What Is a Layer 1
Layer 1 (L1) is a base blockchain network that settles transactions and provides security — Bitcoin, Ethereum, Solana, and Cosmos are L1s. It is the foundation layer on which applications and Layer 2s build.
2. How It Works
An L1 maintains its own consensus, state, and security — validators or miners secure the network, and blocks are finalized on-chain. Applications either run directly on the L1 or settle their data/proofs to it (as rollups do). L1s compete on throughput, fees, finality, and ecosystem.
3. Why It Matters
Layer 1 design determines the base trade-offs of the entire stack: security, decentralization, and cost. Ethereum's L1 became the settlement layer for rollups; other L1s (Solana, Aptos) push high throughput natively. L1 strategy shapes which chains become the home of major applications.
4. Key Facts
- Bitcoin: PoW, ~7 TPS, maximal security focus
- Ethereum: PoS, home of DeFi and rollups
- Solana: high-throughput PoS with parallel execution
- Rollups post data/proofs to L1s for security
5. Related Concepts
- layer-2
- blockchain
- consensus
- settlement-layer
Questions fréquentes
What is Layer 1?
Layer 1 (L1) is the base layer of a blockchain network that settles transactions and provides security, such as Bitcoin, Ethereum, and Solana.
How does Layer 1 work?
Layer 1 (L1) is a base blockchain network that settles transactions and provides security — Bitcoin, Ethereum, Solana, and Cosmos are L1s. It is the foundation layer on which applications and Layer 2s build. An L1 maintains its own consensus, state, and security — validators or miners secure the ne
Why does Layer 1 matter in Web3?
- blockchain - consensus - settlement-layer