Developed CycloneDX Software Bill of Materials (SBOM) generation for Erlang Rebar3 projects within the oss-review-toolkit/ort repository, focusing on enhancing supply chain transparency and security. Implemented the rebar3_sbom plugin using Erlang and Shell, integrating bombom-based packaging to support Docker-enabled workflows. Incorporated cosign-based signature verification to ensure SBOM integrity, enabling secure dependency management and facilitating downstream integration with SBOM-driven pipelines such as package manager plugins. The work delivered a comprehensive solution for automated SBOM creation and verification, providing a foundation for improved security practices and streamlined integration in Erlang project environments. All changes were consolidated in a single commit.