Custos combines patented blockchain technology with forensic watermarking for revolutionary DRM and content security. Custos uses imperceptible watermarking technology and the blockchain to protect digital media files from online piracy. Our SaaS solution, Screenercopy.com, helps filmmakers and distributors to securely distribute their content. To date, over 120 000 movies have been distributed and protected with the technology, all without a single leak. Custos is already protecting ebooks too and is partnering with key market players to expand into music and sensitive document protection.