Linea: Ethereum Layer 2 Scaling Solution
Overview
Linea is a Layer 2 scaling solution for Ethereum that leverages zk-rollup technology to deliver faster, more affordable transactions while maintaining Ethereum's security. Developed by Consensys (creators of MetaMask and Infura), Linea processes transactions off-chain and submits validity proofs back to the Ethereum mainnet.
Key Technical Features
Full EVM Equivalence: Unlike EVM-compatible chains, Linea allows Ethereum smart contracts to deploy without any code modifications
Zk-SNARK Proofs: Uses zero-knowledge Succinct Non-interactive Arguments of Knowledge to verify transactions cryptographically without exposing details
Faster Withdrawals: Unlike optimistic rollups with 7-day waiting periods, Linea enables quicker withdrawals at no additional cost
Architecture Components
Sequencer: Orders transactions, groups them into blocks, executes them, and compresses data to reduce Ethereum storage costs
Prover: Generates zk-SNARK proofs verifying entire blocks without re-running individual transactions
Bridge Relayer: Manages secure cross-chain communication between Linea and Ethereum, with plans for future decentralization
Transaction Flow
Transactions move through six stages: submission to mempool, block building with soft finality, state updates, conflation (batching multiple blocks), proof generation, and final settlement on Ethereum for hard finality.
Tokenomics
Gas fees paid in ETH, not LINEA
LINEA token distributed as rewards to users and builders—no insider allocations
Dual-burn mechanism: 20% of net ETH profits burn ETH, 80% burn LINEA, creating scarcity for both tokens
Native MetaMask and Infura integration for seamless user onboarding
Linea represents a significant advancement in Ethereum scaling, combining technical efficiency with community-focused token distribution
