elaraSign

✅ SURVIVES:

• The Spread (DCT): JPEG compression, screenshots, cropping, social media upload, format conversion
• DNA (LSB): Lossless PNG operations, mild cropping
• Billboard (metadata): Basic file sharing (but easily stripped)

❌ DOES NOT SURVIVE:

• Heavy blur or noise addition
• Extreme compression (<50% JPEG quality)
• Rotation or perspective changes
• AI regeneration (img2img)
• Print and re-scan
• Intentional removal attacks

⚠️ FORENSIC DATA CAPTURED:

• Your IP address at signing time
• Session fingerprint (8-byte hash)
• Unix timestamp (exact second)
• Platform/build ID

This data is encrypted and can ONLY be decrypted by the system operator (e.g., upon request from law enforcement). It survives screenshots and JPEG compression.