Standard Ebooks –Standard Ebooks
Standard Ebooks is a volunteer-driven project that produces meticulously formatted, accessible ebooks of classic literature, releasing them into the public domain for free and without U.S. copyright restrictions. Unfortunately, I was unable to find the rights statement for this platform, however, the closest thing would be this. The only tag I found in this platform is CC0 1.0 Universal Public Domain Dedication.
Wikimedia Commons – Wikimedia Commons
Wikimedia Commons is both a Creative Commons and Public Domain source dedicated to a repository of freely available images, sound clips, and other multimedia files. The sites rights can be found here Commons:Licensing – Wikimedia Commons. Tags identifying the material were found to be CC0, CC BY, CC BY-SA, and CC Public Domain Mark 1.0 which can be found in the same link as the rights.
Prelinger Archives – Prelinger Archives
The Prelinger Archives site offers amateur films and photography, indicating that it is a public domain source. With regards to the copyright laws, there was not much I was able to find except for this. Tags found fall under the Public Domain Mark 1.0 Universal (PDM 1.0).
J Paul Getty Museum: J. Paul Getty Museum | Getty
The J Paul Getty Museum website is shown to be a mix of artwork such as painting, sculptures and more, spanning both the public domain and creative commons sources. Utilizing the following link: Getty Museum Rights information, the section referred to as “Open-Source Content” outlines the copyright status of its works, most of which are in the public domain. These works can be freely used, modified, and redistributed without needing additional permissions due to their expired or ineligible copyright status. Furthermore, further down in the copyright information link, the two sections “Creative Commons” and “J. Paul Getty Museum Collection Online and Copyright” reveals that certain pages and portions fall under creative commons. Tags such as CC BY 4.0 and CC0 can be used to identify the material.