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@claude-dev-suite/bitcoin-l2-bsquared

A

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.

skillclaude

Install

agr install @claude-dev-suite/bitcoin-l2-bsquared --target claude

Writes 1 file into .claude/skills/, pinned to git-f8e6cbed.

  • .claude/skills/bitcoin-l2-bsquared/SKILL.md

Document

name: bitcoin-l2-bsquared description: | 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. allowed-tools: Read, Grep, Glob

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

Trustgrade A

  • passBody integrity

    Whether the stored document is plausibly the kind of file the artifact declares, rather than something fetched by mistake.

  • passType matchnot applicable to this artifact type

    Whether the artifact is really the kind of thing its metadata claims it is.

  • passFreshness

    How long since the source repository was last pushed to.

  • passPrompt injection

    Scans the artifact's own text for instructions aimed at your agent rather than at you.

  • passLicense

    Whether the source repository declares an SPDX license permissive enough to redistribute.

How the grade is calculated

Each check contributes 0 points when it passes, 1 when it warns, and 2 when it fails. The total maps to a letter:

  • Aevery check passed
  • Bone warning
  • Ctwo warnings
  • Dprompt injection or body integrity failed, or three warnings
  • Fone of those failed, and something else is wrong

These are automated hygiene checks, not a security audit, and not a dependency or vulnerability scan. A grade of A means nothing was flagged — not that the artifact is safe.

Versions

  • git-f8e6cbed8c892026-07-31