It's a stretch to interpret one-off stamps in various countries to recognition of the world passport as a legitimate travel document. "Passports" based on strongly held beliefs about identity (global, regional, tribal, or otherwise) as opposed to national citizenship and the legal frameworks that underpin international travel almost always run into the cold, hard reality of border-crossing procedures, as holders of passports created by North American tribes discovered some years ago:
"Native American nations debate sovereignty after Iroquois passport dispute"
https://www.deseret.com/2010/7/17/20128594/native-american-n...)
"My six nation Haudenosaunee passport is not a 'fantasy document'"
https://www.theguardian.com/commentisfree/2015/oct/30/my-six...