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Layer 2 & Scaling

Explore Layer 2 networks and scaling systems, their architecture and development resources. Compare official resources, requirements and limitations.

10 projects

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Layer 2 & Scaling projects

O Odyssey — ithacaxyz Odyssey is an open-source OP Stack testnet rollup built with Reth for experimenting with Ethereum research, including experimental EIPs, precompiles and EOF.

S Stacks Stacks Core is the Rust reference implementation of the Stacks blockchain, a Bitcoin-anchored layer-2 chain that uses Proof of Transfer mining and supports Clarity smart contracts and decentralized applications.

L Lineth Lineth is an open-source Go framework for developing EVM-compatible Ethereum Layer 2 networks using a zero-knowledge rollup and lattice-based cryptography.

Linea Linea is an Ethereum Layer 2 network with a bridge interface, developer resources and a blockchain explorer.

S Scroll Scroll is an Ethereum zkRollup Layer 2 using a bytecode-equivalent zkEVM circuit. Its MIT-licensed monorepo contains L1 and L2 contracts, rollup services, a prover client and coordinator, database components, and a bridge-history service.

H Hydra Hydra is an open-source Haskell implementation of Cardano’s Hydra Head protocol.

K Kinto Kinto is an Ethereum Layer 2 rollup with core Solidity contracts for smart-contract wallets, account abstraction, and on-chain identity and compliance checks.

C Chainx ChainX is an open-source blockchain project built with Substrate that describes a Bitcoin Layer-2 network using a light-client protocol, with smart-contract support for WASM and EVM and MoveVM support under development.