What is the role of authoritative sourcing in GEO?

Authority is the heaviest input the engines use to decide what to cite. The signals stack: domain authority (the publisher’s reputation across the web), author authority (named experts with verifiable credentials and bios), publication context (peer-reviewed papers, mainstream news, government and academic sources, Wikipedia), citation patterns (how often other authoritative sources reference the same content), and structural cleanliness (schema, clear attribution, proper publication dates). The implication for a reputation program is that sourcing is not a checkbox; it is one of the core levers. A page with a strong author byline, credible citations within the text, and authoritative inbound links is far more citable than a page with the same words and no source infrastructure. We build the source infrastructure deliberately as part of content work.