I would guess that there is an awful lot of vintage porn out there that was published without a proper notice, registration, and/or renewal of the copyright (because people were often put in jail for producing porn back in those days, it was highly unlikely that they would register the copyright).
Modern works don't require notice or registration to be protected, but the rules were different in the past.
This is U.S. law. Laws in other countries differ considerably.
Yeah, I've been using Flickr for my project but I was just curious if something else in the public domain existed. Also, does Unsplash accept pornography? I couldn't really find anything on there.
If you specifically look for 19th century stuff you can find articles with references and it'll be public domain. But I kind of doubt that's what you're looking for.
Not unless it's released. Anything anyone creates is automatically under copyright whether they declare it or not. Of course, most people making amateur porn probably won't defend their copyright in court, which is de facto the same thing.
If people post their own pictures without a copyright notice, are they by default in the public domain? There are plenty of places people post porn. A friend told me see reddit.com/r/ <there are many nsfw websites there>. Just google it. Unlike many other places, in gone wild at least people are generally posting their own stuff. It's kind of an amazing concept, that there are apparently hundreds of thousands of people over time that are willing to post pics of themselves naked.
Anything published without a copyright notice still has a copyright.
> Until March 1, 1989, a published work had to contain a valid copyright notice to receive protection under the copyright laws. But this requirement is no longer in force — works first published after March 1, 1989, need not include a copyright notice to gain protection under the law.
It's complicated.
I would guess that there is an awful lot of vintage porn out there that was published without a proper notice, registration, and/or renewal of the copyright (because people were often put in jail for producing porn back in those days, it was highly unlikely that they would register the copyright).
Modern works don't require notice or registration to be protected, but the rules were different in the past.
This is U.S. law. Laws in other countries differ considerably.