The Invisible Label: How AI Watermarking Will Change Digital Trust

AI watermarking is becoming a legal requirement in the EU, but it only signals content origin, not truth or authenticity.

• EU AI Act deadline: Since August 2026, providers of generative AI systems must make synthetic text, image, audio and video outputs machine-readable and detectable, with watermarking as one named method alongside metadata, fingerprints and cryptographic provenance.
• Watermarks embed, not label: Signals are spread across pixels, audio frequencies, video frames or (for text) a model's word-choice statistics, making them harder to strip than a visible tag or metadata, though still vulnerable to cropping, heavy compression, paraphrasing or AI regeneration.

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