SIGNED PROVENANCE
Content Credentials
Waiting for a file.
Evidence deskLocal / private / image-only
An evidence-based AI image detector for Content Credentials, generator metadata, and workflow traces. Your image stays in this tab.
INPUT / 01
PNG, JPEG, WebP, GIF, AVIF or HEIC · up to 100 MB
Choose imageANALYSIS / 02
The official C2PA verifier and local metadata reader are working independently.
REPORT / FOUR LAYERS
SIGNED PROVENANCE
Waiting for a file.
INSPECTABLE DATA
PROVIDER WATERMARK
Only the provider’s compatible detector can read a proprietary signal embedded into pixels.
VISUAL CLASSIFIER
This release does not turn visual style into a probability score. That avoids presenting a classifier guess as provenance.
METHOD / NOT MAGIC
The official open-source C2PA engine checks manifest structure, signature, asset binding, and configured trust anchors.
PNG text, EXIF, XMP, IPTC, workflow JSON, generator names, prompts, and software fields are inspected locally.
A missing credential cannot exclude SynthID, a removed metadata block, a screenshot, or a model-based visual signal.
READ BEFORE USING THE RESULT
“Nothing found” means no supported evidence was present. It does not mean “made by a human.”
Provenance is evidence about a file and its history, not a truth score for what the pixels depict. Editing, screenshots, re-exporting, and platform processing can change or remove inspectable evidence.
Open the field guideFIELD NOTES / FAQ
No. The selected bytes are read by JavaScript and the C2PA WebAssembly module in this browser tab. The WASM engine and the release's public C2PA trust-list snapshot are served as site assets; your image is not sent with those requests.
A trusted credential or explicit generator metadata can provide strong evidence about the file. An empty result cannot prove human authorship because evidence can be absent, stripped, or stored in a proprietary watermark.
It reports inspectable Google or SynthID references but cannot reproduce Google’s closed pixel-level detector. Use Google’s supported verification path when SynthID is the exact question.
An invalid or tampered credential is important evidence. It means a manifest was found but did not pass the verifier’s structural, cryptographic, or asset-binding checks.