PixelSeal
Living Proof Library

Evidence Hub

Real-world identity recovery tests across social platforms, compression pipelines, and editing workflows.

Every test is documented, reproducible, and transparently reported.

1 Tests1 Verified0 Partial1 Platforms0 Video1 Image

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Platform Survival Matrix

Compare watermark survival across all platforms and media types in one table.

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The Landscape

Why Image Provenance Fails Today

Existing approaches each solve part of the problem. PixelSeal combines robustness with cryptographic verification.

The internet doesn't reliably preserve ownership — it often strips or fragments it.

C2PA / Content Credentials

Metadata Provenance

  • Rich provenance chain
  • Cryptographic signatures
  • Industry-backed standard

Screenshot, crop, or re-save can strip metadata. Many social platforms remove or alter metadata on upload.

Digimarc / IMATAG class

Standard Invisible Watermarks

  • Designed to survive compression
  • May persist through screenshots depending on implementation
  • Established enterprise deployment

Typically returns an ID rather than structured attribution. Detection is often probabilistic. Lacks built-in cryptographic verification or context.

Signal-level identity + crypto verification

PixelSeal

  • Robust DCT-based embedding
  • Cryptographic verification (CRC + HMAC)
  • Context snapshot with creator, license, caption
  • Remains recoverable after social recompression and screenshots under tested conditions
  • Human-readable verification record returned

Combines signal robustness, cryptographic verification, and structured context.

Positioning

Where PixelSeal Sits

Robustness vs. provenance richness — PixelSeal occupies the top-right quadrant.

Top-right = remains recoverable under real-world use AND provides verifiable identity.

Robustness →Provenance Richness →Rich but fragileRobust + richNeitherRobust but thinC2PA / MetadataStandard watermarkingPixelSeal
C2PA / Metadata
Standard watermarking
PixelSeal

Benchmark

Torture V3 Results

53 real-world transforms run against a single sealed image. Independent, automated, reproducible.

We applied the same transformations used by social platforms and editing workflows. Results reflect measured recovery rates across defined test scenarios.

Category Results53 transforms total
Baseline + JPEG (8)
94–100%VERIFIED
Resize 90% / 75%
100%VERIFIED
Resize 66–25% (5)
47–57%DETECTED
Border crops (6)
100%VERIFIED
Center punch (16)
50–58%DETECTED
Instagram / Telegram
~95%VERIFIED
Facebook / WhatsApp
100%VERIFIED
Format conversion (3)
100%VERIFIED
Brightness / Contrast / Sharpen
99–100%VERIFIED
Rotation (3)
48–63%DETECTED
Pipeline A / B / C
47–57%DETECTED

VERIFIED

Cryptographic validation passed — CRC + HMAC intact. The watermark was recovered and the payload is proven authentic.

DETECTED

Watermark signal found but validation didn't pass under that transform. The signal survived; the integrity proof did not.

Must-Pass Checklist

JPEG down to Q40
Resize to 75%
Border crop 30%
Instagram / Facebook sims
Screenshot PNG

Result: identity remains detectable across most real-world scenarios.

Comparison

How PixelSeal Compares

A straightforward feature comparison across provenance approaches.

Comparison reflects observed behaviour under controlled test conditions. Most systems solve part of the problem. PixelSeal combines robustness with verifiable identity.

PixelSealMetadata ProvenanceStandard Invisible Watermarking
Recoverable after screenshots
Recoverable after social recompression
Cryptographic verification
Human-readable provenance returned
Platform-independent
Works after metadata stripping

Test Your Own Image —See What Remains Recoverable

Upload an image, process it, and verify it after compression or sharing.

Try uploading an image you've already shared online.

All results are reproducible using the same tools available on this site.

Results may vary depending on platform processing and media transformations.