Research Shows Verified GitHub Commits May Not Be Unique

International Cyber Digest reports new findings on GitHub commit verification. The research demonstrates that multiple commits can share the same verification signature. Authors analyzed a large sample of signed commits across repositories. They discovered collisions caused by reusable GPG keys. The paper discusses the security implications for code provenance. It recommends stricter key management and unique signing practices. Developers are urged to audit their commit signing workflows. Future work will explore automated detection of duplicate signatures.