This repository is a Kotlin/Java library providing Certificate Transparency (CT) verification for Android and JVM applications. It prevents man-in-the-middle attacks by validating TLS certificates against public CT logs. The library offers multiple integration approaches: Java Security Provider, OkHttp interceptors, TrustManager and HostnameVerifier wrappers for HttpURLConnection/Volley/WebView, and direct API usage. Key features include CT log list fetching and parsing, SCT verification, optional CRL-based certificate revocation checking, and configurable caching. The architecture is modular with a core library, Android-specific extensions, and a sample application demonstrating all integration methods. The code employs modern Kotlin idioms (coroutines, sealed classes, builder patterns) and maintains strong separation of concerns between network fetching, policy enforcement, chain cleaning, and verification logic.