Comment fonctionne réellement la provenance des images, ce que font les standards, et où chaque méthode de détection s'arrête.
EU AI Act Article 50: Labelling AI Images
EU AI Act Article 50 applies from 2 August 2026: synthetic images must carry machine-readable marks. What that means in practice, and what it does not.
How to Check If an Image Is AI-Generated
A practical guide to checking an image for AI origin: read its C2PA, IPTC and generator metadata, verify signatures, and know what absence proves.
Read Stable Diffusion Metadata from a PNG
Stable Diffusion writes prompt, seed, sampler and model name into PNG text chunks. Here is how those chunks work and four ways to read them back out.
SynthID Explained, and Its Limits
SynthID hides a watermark in the pixels of Google AI images. No public detector exists. Here is how it works, who can check it, and what it cannot do.
What Are C2PA Content Credentials?
C2PA Content Credentials explained: what a signed provenance manifest contains, how it survives editing, when it breaks, and how to verify one yourself.
Why Instagram Strips Your Image Metadata
Instagram, WhatsApp and most social platforms re-encode every upload and drop EXIF, XMP and C2PA data. Here is what gets destroyed and what survives.