Deepfake protection · post-quantum sealed

Don't find out you were cloned from your fans.

Your music, your voice, your face — sealed with an invisible mark before you ever hit publish. The moment a clone surfaces, the proof that the original is yours is already locked in. Catch the fake, keep your spotlight, keep your revenue.

No upload of your master — sealing runs on your device. Court-grade, post-quantum receipts. Verifiable by anyone, without us.
The problem we exist to solve

By the time you notice the fake, it's already winning.

01 · Independent artists & creators

Your song, cloned the day it charts

Streaming platforms now take in ~75,000 AI tracks a day — about 44% of all uploads. A cloned “Heart on My Sleeve” pulled 15M views in 48 hours before it was caught — and 97% of listeners can't tell AI music from human.

44% of daily uploads are AI
02 · Labels & rights holders

An entire back catalog, exposed

Spotify pulled 75M+ AI spam tracks in a single year. Rights holders face up to $150,000 per infringed work — and a projected €10B in lost revenue by 2028 — while hashing can't catch a synthetic file that's “new” every time.

€10B catalog revenue at risk by 2028
03 · People & families

A face — even a child's — duplicated and sold

A finance team wired $25.6M after a deepfake video call. AI-generated child-abuse videos jumped 260× in a year. And only 0.1% of people can reliably tell a fake from the real thing.

0.1% of people can spot a deepfake
01 · More than audio

One engine. Three things a deepfake steals.

Quantum Sound is biometric-grade deepfake protection across the signals an AI clones — sound, face, and fingerprint. Seal the original once; we recognize it (and catch its fakes) anywhere it surfaces.

Audio & music

Voice and master recordings carry an inaudible harmonic fingerprint + keyed watermark. Re-encodes still trace to you; AI clones — ElevenLabs, XTTS, Bark, OpenVoice — get flagged.

harmonic fingerprint · keyed QIM mark

Face & likeness

Photos and video are sealed with an invisible mark that survives recompression, crop, and even rotation/scale — so a face lifted into a deepfake still carries proof of where it came from.

DCT-QIM watermark · Fourier-Mellin recovery

Biometric & identity

Register a face or fingerprint template as a sealed identity. Any clone, resale, or synthetic reuse can be matched against the original and contested — with a signed, timestamped record.

sealed template · WORM identity ledger
02 · How it works

Seal it. Patrol for it. Prove it.

Three steps, all on real cryptography. Nothing about your original ever leaves your device unprotected — only a one-way fingerprint is ever anchored.

01 · SEAL
Invisible, keyed mark

Drop a track, image, or face. We embed a watermark you can't see or hear, bound to a post-quantum signature.

Ed25519 · ML-DSA-87 · SLH-DSA-128f
02 · PATROL
Catch the clones

Run any suspect file through the gauntlet — your re-encodes trace back; AI clones and tampered copies get flagged.

100-attack gauntlet · blind detector
03 · PROVE
Court-grade receipt

Export a signed PDF + .epochtape manifest anyone can verify offline. One flipped byte reads TAMPER.

WORM-anchored · EU AI Act Art. 50
03 · The cryptography, in the open

Real crypto. Audited. Running in your browser.

No black box, no trust-us. The mark and the proof are built on @noble — the independently-audited post-quantum library used across the Ethereum stack — executing on your device. Type anything below and hash it live, right here on this page.

SHA-256
SHA-512
Computed in-browser via WebCrypto — flip one character and the whole fingerprint changes.
ML-KEM-1024FIPS 203 post-quantum key encapsulation · real, in-browser
SHA-256 · SHA-512 · BLAKE3triple-hash binding · real, in-browser
Ed25519 signaturesigned on your device via WebCrypto · real
ML-DSA-87 · SLH-DSA-128fpost-quantum signatures issued at the hardware-attested dataplane — never faked in the browser
checking pqc.epochcoreqcs.com…
Why we show you this: every watermark that promised "unbreakable" got publicly broken. We don't. The mark survives the everyday internet; the signed, ledger-anchored proof survives everything — and you can verify it yourself, offline, in the Verify tab.
03 · Why we're different

Detection guesses. Credentials vanish. We prove.

Every other defense is either a probability score that ages the day a new model ships, or a “made-by” tag the first screenshot strips off. Quantum Sound is built on the one thing that stays durable — cryptographic proof, bound to a mark that survives the real internet.

Probabilistic · reactive

Deepfake detectors

Scan a file after the fact and guess whether it's fake.

A 99% lab score collapses on compressed, foreign, or new-model audio — and people catch only 0.1%. Always one step behind the next generator.
Fragile · strippable

Content Credentials (C2PA)

Attach a signed “made by” label to the file's metadata.

Ordinary uploads, screenshots and re-encodes strip the label — exactly the viral path that needs it most. And it only records what the signer claims.
Durable · court-grade

Quantum Sound

Seal the original itself — an invisible mark bound to post-quantum proof.

The mark survives recompression, crop, rotation & scale; the proof is signed, ledger-anchored, and verifiable by anyone offline — it can't be forged or quietly stripped.
We're honest about the line: no one can stop a deepfake from being made. What we guarantee is that the proof of what's real outlives every copy, screenshot, and re-upload — so you're never the one stuck trying to prove yourself.
04 · Start protecting today

Pricing that scales from one song to a catalog.

Begin free, upgrade when it earns its keep. Annual and nonprofit/child-safety rates available — talk to us.

Independent
Creator
$19/mo
  • Seal up to 50 works/month
  • Audio + image protection
  • Unlimited clone-gauntlet checks
  • Signed PDF + .epochtape receipts
  • Public verify link per work
Start free
Labels & rights holders
Catalog
$2,400/mo + per-title
  • Bulk-seal an entire back catalog
  • Audio, video & face/likeness
  • Always-on web patrol + alerts
  • Roster dashboards & takedown evidence packs
  • API + watsonx Orchestrate integration
  • SOC 2 · 7-year WORM retention
Book a catalog demo
Identity & child safety
Sentinel
Custom
  • Sealed face/fingerprint identities
  • Synthetic-reuse matching & contest
  • Family & minor-protection program
  • Discounted / pro-bono nonprofit tier
  • Law-enforcement evidence export
Talk to us
Post-quantum
3 signature families · Ed25519 · ML-DSA-87 · SLH-DSA-128f
On-device
your master never uploads · only a hash is anchored
Hardware-attested
IBM Heron R3 quantum root · RAS 40668c78…
Verifiable by anyone
offline · without EpochCore · EU AI Act Art. 50

Seal it before the fake does.

Protect your next release the day you publish — and have court-grade proof ready the moment a clone shows up.