# Bitcoin L2 Bsquared

> B² Network (BSquared): hybrid ZK + optimistic Bitcoin L2 with EVM compatibility. Live since 2024. USE WHEN: evaluating B² for deployment, integrating with their bridge, comparing Bitcoin L2 options.

- Skill: `claude-dev-suite/bitcoin-l2-bsquared` (Agent Skill)
- Install (CLI): `npx skillmds@latest add claude-dev-suite/bitcoin-l2-bsquared`
- Raw SKILL.md: https://api.skillmd.com/api/skills/claude-dev-suite/bitcoin-l2-bsquared/raw
- Safety review: pending (external: skill-scanner PASS, skillspector PASS)
- Works with: Claude Code, Claude.ai, OpenAI Codex
- Category: Coding & Dev Tools
- Author: claude-dev-suite (https://skillmd.com/u/claude-dev-suite)
- Updated: 2026-09-08
- Page: https://skillmd.com/skills/claude-dev-suite/bitcoin-l2-bsquared

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# B² Network (BSquared)

Bitcoin L2 with EVM compatibility, ZK proof rollup combined with
optimistic challenge mechanism. Deployed 2024, growing 2025-2026.

## Architecture

- **EVM execution** (Solidity contracts).
- **ZK proofs** for state validity.
- **Optimistic challenges** as backup verification.
- **Bridge**: federation + planned BitVM upgrade.
- **Native token**: B²BTC (peg-style) + B² (governance/utility).

## Use cases

- **DeFi**: yield protocols, lending, AMMs.
- **Bitcoin staking-like products**: bridged BTC earns yield in
  B² ecosystem.
- **NFTs / Asset issuance**.

## Position

One of multiple "Bitcoin L2" projects competing for TVL in 2024-2025.
Notable but smaller than Stacks, RSK, Merlin in TVL terms (early
2026).

## Limitations

- **Federation trust** for current bridge.
- **EVM compatibility** but smaller dApp ecosystem.
- **Unclear path** to fully trustless bridging.

## See also

- [strata/SKILL.md](../strata/SKILL.md)
- [citrea/SKILL.md](../citrea/SKILL.md)
- [bitlayer/SKILL.md](../bitlayer/SKILL.md)
- [merlin/SKILL.md](../merlin/SKILL.md)