image-genai-v1

image-genai-v1

AI-generated image with recoverable provenance and TrustMark watermark. Use this recipe when signing images produced by generative AI systems.

Recipe configuration

id: image-genai-v1
version: 1
media_type: image
description: "AI-generated image with recoverable provenance and TrustMark watermark"
c2pa:
  enabled: true
  assertions: [ai_generated, generator, model, prompt_hash, created_at]
  kms_mode: managed
watermark:
  enabled: true
  engine: trustmark
  payload:
    type: manifest_pointer
    encoding: compact
anchoring:
  enabled: true
  methods: [opentimestamps]
retention:
  manifest_days: 365
  original_asset_days: 0
  derived_asset_days: 30
verification:
  minimum_confidence: 0.92

Sign an image

curl -X POST https://api.verbitas.io/v1/sign \
  -H "Authorization: Bearer vb_test_YOUR_KEY_HERE" \
  -F "[email protected]" \
  -F "recipe=image-genai-v1" \
  -F 'metadata={"generator":"my-model","model":"v2.0"}' \
  | jq .

What this records

• ai_generated — marks the content as AI-generated
• generator — name of the generating system
• model — model version used
• prompt_hash — SHA-256 of the generation prompt
• created_at — ISO 8601 timestamp

Watermark

TrustMark embeds a 16-byte ULID into pixel data at PSNR ≥ 42 dB (imperceptible). The watermark survives JPEG re-compression, resize, crop, and screenshot.

Retention

• Manifests: 365 days
• Original assets: not retained (0 days)
• Derived assets: 30 days