Linea decentralization and the shift in zero-knowledge scaling

Consensys and the Linea ecosystem

Consensys operates the Linea sequencer and prover. This concentration of power means users rely on an L1 escape hatch that has not yet faced large scale stress testing in production. Linea launched its mainnet alpha in July 2023 after a testnet phase where 5.5 million unique wallets completed 47 million transactions. The network provides native integration with MetaMask and Infura. If you already know the importance of RPC distribution, you see the risk in Linea’s heavy reliance on Infura. The Linea Association in Switzerland manages governance and the LINEA token, which began distribution in Q1 2025. The Linea roadmap includes a stage three that targets full decentralization of both the sequencer and prover roles through a governance handoff to token holders and the Linea Association. Transaction fees on Linea typically sit under a cent for transfers and a few cents for swaps. Deposits via the native bridge take between 15 and 20 minutes. Mendi Finance and Lynex provide deep liquidity, while Velocore provides concentrated liquidity. Linea uses a recursion-friendly, lattice-based prover. Fees on Linea are driven by Ethereum L1 calldata pricing and EIP-4844 blob market conditions.

Matter Labs and the Polygon pivot

Matter Labs manages the ZK Stack, a modular framework for building custom hyperchains. Klaytn Foundation signed a memorandum of understanding with Matter Labs on June 27, 2023, to build hyperchain implementations. Klaytn provides low transaction latency and low gas fees. Matter Labs raised over $450 million from investors and maintains a $200 million ecosystem fund. Polygon is discontinuing its zkEVM chain in 2026 to reallocate resources toward the Agglayer and the Polygon PoS network. ZisK, which began as a project within Polygon Labs in May 2024, now operates as an independent entity under SilentSig Switzerland GmbH. This spin-off follows reports that the network incurred over $1 million in yearly losses after Polygon acquired Hermez for $250 million in 2021. Polygon PoS can also integrate with zkEVM technology to function as a zkEVM Validium.

Scroll workflows and L2 competition

Scroll processes transactions through a sequencer containing a sync service, a mempool, and an executor. The executor pulls transactions from the L1 transaction queue and the L2 mempool to construct new L2 blocks for the network. A relayer and a coordinator manage chunk and batch proposers. When the coordinator receives chunk or batch proofs from a prover, it writes the proof to the database. Aggregators receive batch transactions from the sequencer and send them to the zkProver. The zkProver uses the SNARK verification method to generate a zero-knowledge proof, then the aggregator sends the proof to the consensus contract for verification. This process guarantees that the state root of the latest finalized batch can be used trustlessly. Linea is a Type 2 zkEVM that allows Solidity contracts to deploy without rewrites. zkSync Era uses an LLM-based compiler and remains a Type 4 zkEVM. Polygon zkEVM is the laggard in 2026. Will the ZisK spin-off achieve the scale that the original zkEVM failed to reach?