Bitcoin’s script engine is intentionally restrictive—no calls between scripts, limited stack depth, and a strict 400KB size cap. This is why running advanced cryptographic verifiers like ZKPs on Bitcoin Layer 1 has always been considered impractical.
Bitlayer introduces a bold alternative. By implementing its BitVM2 paradigm, it enables state transition proofs to be generated off-chain (on the rollup) and verified on-chain through a dispute mechanism. This allows zero-knowledge verifiers to act as a trustless referee when disputes arise, bridging the gap between Bitcoin’s security and advanced computation.
The result? Bitcoin now has a path to programmable scalability without compromising its original security ethos. This is not just a scaling solution—it’s a paradigm shift for trust-minimized verification in the Bitcoin ecosystem.