Claude writes 180 million lines of proofs for 123 open-source libraries

What the research found

Duplicate of #5414: Anthropic and Theorem Labs report Claude formally verified 239 entry points across 123 OSS-Fuzz libraries at RISC-V assembly level, about 180 million lines of Rocq proofs, under single-threaded static binary and 64 MB input assumptions.

Claims and how well the evidence supports them

1. Claude produced roughly 180 million lines of Rocq proof code 98%
2. Proofs cover 239 entry points in 123 OSS-Fuzz libraries 99%
3. Proofs assume single-threaded static binaries with fixed memory on RISC-V Linux 99%
4. Work took a few weeks rather than years of expert effort 98%

Evidence

• glitchwire.com https://glitchwire.com/news/claude-writes-180-million-lines-of-proof-code-to-verify-123-open-source-librarie
• the-decoder.com https://the-decoder.com/anthropics-claude-now-writes-code-and-proves-it-safe-automatically

Actionability rated low.