So, before this discussion becomes untechnical, here are some facts from a quick research.
https://www.copyright.gov/title17/92chap4.html#408 "(2) in the case of a work other than an anonymous or pseudonymous work, the name and nationality or domicile of the author or authors, and, if one or more of the authors is dead, the dates of their deaths; (3) if the work is anonymous or pseudonymous, the nationality or domicile of the author or authors;" For me that means that publishing pseudonymous copyrighted work under any license should be fine as long as the license does not explicitly mention it? drkhsh
