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2 posts

• Steganographic Agent Marking: Covert Identity Signals in AI-Generated Output

  How AI systems embed hidden identity signals in their output — what it means for Non-Human Identity detection, attribution pipelines, and adversaries trying to strip or forge those marks.

  Jul 2, 2026 steganography watermarking nhi-detection attribution evasion claude-code red-teaming ai-identity

• Content Provenance at Scale: What C2PA and SynthID Actually Do — and What They Don't

  OpenAI and Google are now embedding provenance credentials into AI-generated content at production scale. C2PA cryptographic manifests and SynthID watermarks represent genuinely different threat models. Here's what each solves, where each breaks, and why neither is a complete answer to AI content authentication.

  Jun 20, 2026 provenance content-authenticity watermarking c2pa deepfakes defense-patterns