They scraped the past. We're sealing the future.
For decades, the open web was treated like an all-you-can-eat buffet for tech giants. They scraped your art, your code, and your ideas to build their empires. Today, we draw a line in their sand.
Article One — “I am David. I am free.”(autoplay starts muted — tap volume to hear)
Seal it without seeing it
Your file never leaves your device. We only ever touch its cryptographic fingerprint — and that's enough to prove it existed, untampered, forever.
We seal it without seeing it
Hashing happens in your browser. We never receive your file — only its fingerprint.
Verifiable forever
Anyone can confirm your seal against the public ledger, any time, with no account.
Even quantum computers can't forge it
Sealed with NIST post-quantum signatures, so the proof holds up against future attacks.
A protected creative pipeline
From the moment you create to the moment someone verifies your work — every step carries cryptographic proof. The Synergents subscription wraps your pipeline end to end.
Seal at origin
Your work seals itself the moment you create it — locally, before publishing, before any AI can scrape it. The timestamp becomes your priority claim.
Declare your terms
Bind a creator license into the seal — AI training, commercial use, attribution. The terms travel with the work, locked by the same signature that proves it's yours.
Anchored in a public ledger
Every seal commits to a tamper-evident chain. Verifiable forever, by anyone, with or without our service — even after quantum computers arrive.
Verifiable anywhere
No account. No install. No re-upload. Recipients confirm authorship in their browser. Your claim travels with the work, not with a platform.
See Post-Quantum Security in Action
Run real cryptographic attacks and watch them get blocked in real-time. Toggle Classical Mode to see why legacy crypto fails.
Pricing that respects the work
Free covers what's live today. Pro covers what's coming — native embedding, perceptual fingerprints, and the tools to make AI labs ask before they train.
Free
Seal anything. Verify anything. Forever.
- Unlimited file seals — file never leaves your device
- Quantum-tier post-quantum signatures (FALCON + SPHINCS+ + HMAC)
- Anchored in our public, tamper-evident ledger
- .sealed.zip bundle and .sig sidecar downloads
- Optional creator license declaration — AI training, commercial use, attribution
- Verification at /verify, no account, no install
Pro
When the file is the seal.
- Everything in Free, plus:
- Native metadata embedding — the file IS the seal (images, PDFs, audio, video)
- Perceptual fingerprinting — find your work after edits, crops, re-encodes
- Cloak-and-seal — Glaze / Nightshade adversarial perturbations
- Sealed Courier — ML-KEM-1024 encrypted dead drop to one recipient
- Trained Responsibly registry — license terms in a public, lab-readable index
- Optional PoCoh settlement for AI-training license payments
Honest answers
What sealing proves, what it doesn't, and how the cryptography holds up.