Verify Digital Media
Even After Screenshots

The trust layer for digital media. Invisible watermarks survive screenshots, playback, and re-uploads. Cryptographic proof of origin—no original file required.

Built For Creators

Protect your work forever

Invisible watermarking that proves ownership without affecting your content's look or feel. Your signature, embedded forever.

Zero quality loss
🌍Works on all platforms
✍️Automatic attribution
🛡️Copyright protection
Regulatory Ready
C2PA Compatible
🎨
Protection Active
Cryptography
Post-Quantum
Quantum Resistant
🔒 Secured

POST. Watermark. Verify. Scale.

01

Submit Media via API

Authenticate with your API key, POST media to our endpoint. Images, videos, audio, documents — all formats supported. Sub-5ms latency, 99.9% SLA.

REST APISDK SupportWebhooks
API RequestPOST /v1/watermark
curl example:
curl -X POST https://api.zry.dev/v1/watermark \
  -H "x-api-key: YOUR_API_KEY" \
  -F "file=@media.jpg"
Processing...
C2PA Manifest Signed
Creator
Verified Publisher
Timestamp
12/22/2025
Claim Generator
ZRY Watermarking
02

Receive Watermarked Asset + C2PA Manifest

Response includes watermarked file, signed C2PA manifest, and cryptographic proof. Serve directly to users or store for later verification. Universal compatibility.

Response
JSON + Binary data
Verification
Universal validation
03

Invisible Watermarks

Frequency-domain watermarks survive compression, cropping, format conversion, and screenshots. Prove ownership or track content distribution across the web. Choose from DCT, DWT, FFT, or MDCT algorithms.

Security
Post-quantum crypto
Quality
Zero visible impact
Watermark StrengthAdaptive
Robustness
99.2%
Invisible
100%
Protected Files3 files
movie_final.mp4
Protected
track_master.wav
Protected
photo_hires.jpg
Protected
04

Verify After Screenshots and Playback

Screenshot an image. Record audio playback. Re-upload a video. Verification still works—no original file required. Public verification records let anyone confirm authenticity independently.

Build Trust at Scale

Enterprise-grade content verification built on post-quantum cryptography

Post-Quantum Cryptography

ML-DSA-44/65/87 signatures, ML-KEM-512/768/1024 key encapsulation, SLH-DSA-128/192/256 hash-based signatures

Symmetric Encryption

AES-GCM and ChaCha20-Poly1305 authenticated encryption. Argon2id and PBKDF2 key derivation.

Watermarking Algorithms

Spread Spectrum (DSSS/FHSS), DWT (wavelet), DCT (frequency), and MDCT. Invisible protection for images, video, and audio.

Video Processing

GOP analysis, motion-adaptive embedding, HDR support (FFmpeg 7.1), real-time streaming

Public Verification Records

Tamper-proof ledger of all signed content. Anyone can verify authenticity independently—compatible with C2PA trust infrastructure.

Compliance & Legal

Verifiable in legal settings
C2PA compliance
Audit trails
Enterprise SSO
Developer Experience
SDKs • Documentation • Support • Monitoring
Flexible Configuration
C2PA Only • +Invisible • +Quantum

Pay only for the layers you need. Start with C2PA, upgrade to invisible + quantum for advanced security.

Ready to Make Your Content Verifiable?

Join the beta. Watermark and verify images, video, audio, and documents—even after they've been shared.

ZRY | The Trust Layer for Digital Media