Textual information (e.g. timestamp) once visible in the image itself has been moved into the image metadata and/or image description page. This makes the image easier to reuse and more language-neutral, and makes the text easier to process and search for. Commons discourages placing visible textual information in images. All licenses accepted on Commons permit this type of modification as a derivative work.
If attribution information were removed and the image is not public domain, replace this tag with {{Attribution metadata from licensed image}}.