If it’s not directly human-verifiable, people have to rely on 3rd party tools or official/media statements to verify content legitimacy. Such reliance requires trust in authorities and media, which have both been subject to systematic erosion as of late.
I don’t see the point of this technology. It might be useful for entities like Meta and Google, which could use it to warn of fake content. However, in practice that amounts to giving those entities more power over our perceptions and the realities we build upon them.