Find me a reputable source on the same level as Wikipedia, the open source foundation or red hat that defines open source in a different way. This is not about

Find me a reputable source on the same level as Wikipedia, the open source foundation or red hat that defines open source in a different way. This is not about owning a term, it's simply about the fact that term had a definition that people agree on. The fact that some people don't know about that definition or that some people don't agree with it doesn't change it.