Match v1 APK certificate and signer serials by signed integer value. Normalize each comparison identity once and preserve raw certificate bytes and Evidence.
37 source/integration tests, 23 real Android SDK verifier cases, SDK-valid padded APK CLI/MCP oracle and serial static checks passed. Hosted real-apk-signature passed. CI27pass7fail2skip7cancel; exact-main controls reproduce17source and14targeted existing-main assertions. NativeWindows/Mac/Node22 baseline gaps and canceled shards are documented. Greptile sole finding is unchanged upstream browser privacy code, scoped and resolved without a fix claim. Requester authorized readiness and unrelated-main failure bypass; no human review is attested.
Co-authored-by: gensokyo-dev <342580529+gensokyo-dev@users.noreply.github.com>