Rights info embedded in the track, readable after the file changes.
Your song’s info, riding inside the sound itself: title, artist, who stamped it, and a short note.
Fingerprint · recognize it
Like recognizing a song on the radio. You hear it, you know it. Nothing is added to the song.
Stamp · label it
Like a name tag sewn inside a jacket. Invisible from the outside. Look inside and it says whose it is and what the rules are.
This is an audio watermark. It labels your recording from the inside. It is not song recognition, not Content ID, and not a legal filing. It rides alongside all three.
How the words fit: The fingerprint recognizes the song. The stamp rides inside it carrying your note. The receipt is what comes back out. The lock keeps the stamp yours to change. The reader is Duona’s tool that opens it.
Why this matters
Credits
Your song leaves the building.
The file goes out with artwork, title, and credits attached.
TITLECREDITS
Someone strips it.
New filename, labels deleted, then re-uploaded. The attached info is gone.
Still inside
The stamp is still inside the sound.
MP3 at any quality, added noise, tone filters, and a 10-second crop each came back with the stamp. Stacks often survive too; pile enough edits on one copy and the number can scramble. A pitch shift or a lone timing stretch is what breaks it outright. Act 6 shows the line.
Act 1
Pick a song
Pick something familiar, use our demo, or bring your own song.
Your clean starting audio
Catalog picks use the public 30-second preview. Your own uploads run full length, up to four minutes.
Everything you made here is yours to keep: the stamped file and its receipt. Free, no account.
Early pricing
Early pricing, locked in writing when we onboard you:
Solo artists: a five-track catalog runs about $10 a month, à la carte, no minimum. Exact shape lands when you do.
Catalogs: $1.50 to $3 per master we file, per month, $500 monthly minimum. A 300-track catalog runs $500–$900 a month at this band, covering the loop you ran plus the registry filing and the monthly re-checks. Protect all of it or a subset; only protected masters count. Nobody starts at 300: start à la carte under 50 tracks with no minimum, and move to the catalog plan when the receipts have earned it.
If you ever stop paying, the stamps stay. They live in the audio itself, not on a subscription check. What stops is the upkeep around them: the registry filing, the monthly re-checks, the watching.
Start small
Protect the tracks that matter first.
Under about 50 tracks? À la carte, per track, no monthly minimum, no long contract. Start with the ones that matter most.
Early means early: numbers firm up on the call, never after it.
Onboarding, start to finish
You send
Masters and a metadata export. That is the whole ask.
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We stamp and file
Every master stamped; the do-not-train record filed on TDM·AI.
→↓
You get back
Stamped masters, a receipt each, the ledger, this checker.
Then monthly: this exact check re-runs on every master we file; a match report each, the refreshed ledger row, and a signed no-match report when nothing is found. Scope and timeline are sized on the call, per catalog.
Ledger format
Your catalog, after
Every master gets a row like this. You get the ledger back.
Each row carries all 8 columns. Swipe the table sideways to see stamped-by, note, lock, and receipt state.
Title
Artist
Recording code
Stamped by
Note
Lock
Stamped time
Receipt state
Stamp a song in the demo and its live row shows here.
Illustrative format rows, not data
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What this is
An audio watermark: a hidden label in the sound itself. This page is the working demo, one song at a time.
What the product is
Duona keeps machine-readable ‘do not train’ records for your catalog on Liccium’s TDM·AI registry: the public ledger of training reservations the EU AI Act obliges model companies to honor, with Commission fines behind it since August 2026. This demo files nothing; filings happen when we onboard your catalog.
The sentence to forward
“It hides a label inside the sound recording, hands us a receipt and a printable takedown packet, and survived normal delivery damage live on their page. It is not Content ID and does not remove copies; it gives our existing takedown path evidence, and it files the do-not-train record the EU now enforces.”
What you get when a copy turns up
The receipt out of the audio plus the match report: evidence you hand to the people who already run your takedowns and claims. We do not decide legal questions, and we say so.
The three layers run as one line: recognition finds the copy, the stamp proves it is yours, the packet goes to the takedown path you already use; and the registry record stands against training the whole time.
And why this beats typing the same words into metadata: anyone can type a name, and anyone can delete it. Nobody can make audio speak a number it was never stamped with. The receipt’s strength is not the words you chose; it is that this exact copy, and every copy descended from it, yields the same number under the same lock, timestamped at the moment you stamped it.
Independent? That means: your distributor’s takedown form, the platform’s copyright report, or a lawyer if it’s serious. The receipt is the thing they always ask for: proof the recording is yours, with your terms on it.
Where the receipt fits a takedown
Every takedown form asks you to identify the recording and say, in good faith, that it is yours. The receipt answers both from inside the audio: the recording, your name, your terms, and when it was stamped. Attach it where you already attach your proof. We never claim a platform endorses Duona. We make the proof part easy.
What your current stack already covers, and what it does not
Content ID watches one platform for re-uploads and routes the money. Your distributor sends takedowns when you bring the proof. Keep both. Neither one says anything to the companies training AI models on music, because nothing in that stack was built to. The do-not-train record is the piece that speaks to them, the stamp keeps your name inside the copies, and recognition finds the ones you never touched. This slots in beside your stack. It does not replace it. The recognition layer also reads copies you never stamped; watch it work by breaking the stamp above and running the net.
Want proof on your own catalog before any call? It is already on this page: upload one of your real masters above; free, no account, deleted within two hours; and bring the receipt with you.
And the call itself commits you to nothing: it is where the exact per-master numbers land in writing. Nobody prices a catalog from a web page, ours included.
Real catalog intake
Start the conversation
Tell us who you are and roughly what you manage. A human replies.
