@Shark There's unfortunately still problems then, as in most countries, a work without a license is proprietary and those in the USA are going to assume that a work is proprietary unless it has a license on it - which means all you can do is note that the work was published in Iran and therefore has no US copyright.

Although, it could be argued that a work "published" on a fediverse instance hosted in the USA, or in any of the countries it has legislatively colonized could fall under US copyright.