Bitcoin L2 Hemi

Hemi Network: hybrid Bitcoin + Ethereum L2 with "superfinality" via Bitcoin PoW. ~$1.2B TVL, 90+ protocols (early 2026). USE WHEN: building cross-chain DeFi, evaluating Hemi vs BOB.

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Hemi Network

Hybrid L2 by Hemi Labs combining Bitcoin and Ethereum. Featured "superfinality": uses Bitcoin's PoW to provide an additional finality layer beyond Ethereum's.

Architecture

  • EVM execution with Solidity.
  • Anchored to Ethereum for DA.
  • PoW finality from Bitcoin: state checkpoints periodically committed to Bitcoin chain.
  • Bridge: Multi-chain bridge to BTC, ETH, and other L2s.

Superfinality

After Ethereum-style finality, Hemi additionally requires Bitcoin checkpoint:

  • Provides "irreversibility" akin to Bitcoin's beyond Ethereum's.
  • Trade-off: longer effective finality time.

Position

Significant TVL (~$1.2B early 2026), 90+ protocols deployed. Among the more active "hybrid Bitcoin L2" projects.

Use cases

  • Cross-chain DeFi.
  • Apps requiring strongest finality from both chains.
  • NFT bridges Bitcoin Ordinals ↔ Ethereum NFTs.

Limitations

  • Complex security model.
  • Dual chain dependency.

See also

claude-dev-suite/claude-dev-suite/tree/main/skills/bitcoin/l2/hemi commit 8376d3c07a

Frequently asked questions

npx skillmds@latest add claude-dev-suite/bitcoin-l2-hemi