From 22 December 2025 to 4 January 2026 we will be unavailable by phone. Do you have a question? Please check out our handy FAQs or contact us using the contact form. We wish you a Merry Christmas and a happy New Year!
As the author of a visual work of art (e.g. a sculpture, painting, etc.), you are not obliged to register your works. The author's signature on the work is considered to be sufficient proof of authorship.
Photographers can prove their authorship with the negatives of their works or by means of protected digital files.