Research
Introducing AlphaProof Code: a breakthrough in verifying complex software at depth
The Brief
- Google DeepMind announced AlphaProof Code in a blog post dated 2026-11-10.
- AlphaProof Code agents wrote three million lines of proofs in Lean.
- The proofs are used to verify Signal's core encryption code.
Why it matters
It shows AI agents producing large-scale formal proofs for security-critical software, which bears on how far machine-checked verification of cryptographic code can scale.
Who’s affected
- formal verification researchers
- security and cryptography researchers
- #formal verification
- #lean
- #cryptography
- #signal
- #ai agents
AlphaProof Code agents wrote three million lines of proofs in Lean to verify Signal’s core encryption.
Timeline
Google DeepMind announced AlphaProof Code and its Lean verification of Signal's core encryption
Google DeepMind News
Introducing AlphaProof Code: a breakthrough in verifying complex software at depth