Without exception, all puzzles and / or other media provided by Puzzle Services must contain a copyright signature when published.
An example of copyright is as follows:
Copyright © 2021 puzzleservices.net
Puzzles purchased from Puzzle Services remain the property of Puzzle Services, puzzleservices.net and Puzzle Services and may not be reproduced, reprinted, sold or otherwise displayed, transferred or reused without our express written permission. All rights belong to puzzleservices.net
Copyright infringement is a serious crime and will be prosecuted to the full extent of the law.