Being able to view an image is not permission to reuse it
Search engines display photographs hosted by other sites, but visibility does not remove copyright. To include a portrait we need an original file page that identifies the creator and the conditions for reuse.
That is why this collection uses Wikimedia Commons and other verifiable pages rather than screenshots or downloads with no context.
Attribution and licence
A Creative Commons licence may allow an image to be copied and adapted under conditions. Attribution usually means preserving the creator's name, the licence and a link. Some variants add requirements such as sharing adaptations under the same licence.
The result card summarises those details, while the credits page keeps a searchable record of all one hundred images.
Public domain
A public-domain work can be reused without ordinary copyright restrictions, but keeping a known source and creator is still good practice. Legal status may also vary by country and by the particular work.
A public-domain label should not be copied from memory; it is checked on the relevant file page.
Credits are part of the product
Attribution is not an invisible appendix. GenderGuess presents it when the photograph has served its purpose, next to the answer and biographical sources.
This recognises the creator, makes errors easier to review and shows that a digital image also has a history, authorship and terms of use.