California has enacted a new law requiring generative AI services with over one million monthly users to embed machine-readable provenance data into images, audio, and video content.

Key Points

• The mandate applies to AI platforms with more than 1 million monthly users operating within California.
• Companies must provide a free tool allowing users to verify if specific media files originated from their generative systems.
• Services are required to offer users the option to include public disclosures on AI-generated content.
• Social media and file-sharing platforms are not required to make provenance data easily inspectable for users until January 2027.
• Starting in 2028, new cameras, phones, and recording devices sold in California must embed provenance information by default.

Why it Matters

This legislation aims to combat the proliferation of deepfakes, particularly regarding non-consensual pornography and deceptive political messaging. By standardizing provenance data, the law seeks to establish a framework for digital authenticity that could influence national standards for AI transparency.