Article 50 Verification

AI Watermark Robustness & EU Compliance Lab

Statistical Kirchenbauer Red/Green Token Biasing & Perturbation Stress Bench
1. Statistical Watermark Embedder Media: Synthetic Text
2. Perturbation Attack Sandbox Evasion Stress-Testing
3. Detection Metrics & Significance Kirchenbauer et al. Test
Green Token Ratio
0.842
48 / 57 Tokens
Detection Z-Score
5.82
p < 10⁻⁸
Watermark Confidence
99.98%
Evidentiary standard
Evasion Threshold
38.5%
Max attack tolerance
🛡️ EU AI Act Art. 50 Compliant
Statistical watermarking yields z ≥ 4.0 with authentic token entropy, satisfying technical requirements for machine-readable provenance and transparency under Regulation (EU) 2024/1689.
MANIFEST: c2pa.v2 // HASH: e9b4c071... // SEED: 0x7F4A // TOKENS: 57 // Z_STAT: 5.82
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