Content authenticity for audio

Know the moment your audio gets copied.

AuthentiCast fingerprints your podcasts, audiobooks, and audio drama — then tells you when a track resurfaces elsewhere: reposted, reuploaded under a new name, or flagged on YouTube/TikTok. Think Copyscape, for audio.

No card required on the free plan · Your own API · Fingerprints, not files
How it works

Three moving parts, one answer.

Fingerprint once, check forever. Every check runs against your own catalog and a corpus we maintain for you.

01 · Ingest

Fingerprint your catalog

Send us your audio (or just a URL). We compute an acoustic fingerprint — a few hundred bytes, not the file — and store it under your own reference id.

02 · Check

Match against everything

Any new audio is scored against your catalog and a shared corpus we crawl from legitimate podcast hosts and archives. You get similarity + coverage, instantly.

03 · Decide

You own the verdict

We surface the match and the score — nothing more. What counts as theft, a re-master, or a false alarm is your call, in your code. No black box.

What you get

Built to catch what one platform can't.

The moat isn't any single match — it's the maintained index of what's already out there.

Acoustic fingerprint engine

Chromaprint-compatible fingerprints that survive re-encoding, trimming, and volume changes — catching copies a filename search never would.

Shared open-web corpus

We automatically re-check every source in our growing index every few hours, and we're actively expanding which legitimate podcast hosts and archives we cover.

Piracy-site sweep in review

The same pipeline pointed at known file-sharing and torrent-index sites. Undergoing legal review before we switch it on.

YouTube & TikTok repost watch

A title/creator search sweep that flags likely reposts of your published work — text-only, never touching platform media.

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A clean API

Two calls — /ingest and /check. Wire it into your upload flow in an afternoon. Your keys, your rules.

Usage you can see

Every check is metered and shown in your dashboard. Simple monthly plans, no surprise bills — top up with credits if you ever need more.

Pricing

Start free. Grow when you need to.

Every plan checks against the same shared corpus — no tier gets a smaller slice. Prices are per month.

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Bigger volume or special terms? Talk to us about Custom.

FAQ

Questions, answered.

The short version. Still stuck? Get in touch.

What does AuthentiCast actually do?

It fingerprints your audio — podcasts, audiobooks, audio drama — and tells you when a track resurfaces elsewhere: re-uploaded under a new name, pirated, or reposted. Think Copyscape, but for audio.

Do you store my audio files?

No. We compute an acoustic fingerprint — a compact numeric signature a few hundred bytes long — and store that, not your audio. It's enough to recognise a track, but you can't reconstruct the audio from it.

How does a check work?

You ingest your catalog once (send audio or just a URL). After that, any audio you run through /check is scored against your own catalog and a shared corpus we maintain — you get a similarity score and coverage instantly. We surface the match; what it means (theft, a re-master, a false alarm) is your call.

Where do you check against?

A shared corpus built from legitimate podcast/audiobook hosts (RSS, Archive.org, indie sites) — every customer benefits from the same index. Plus a YouTube/TikTok title-search sweep for reposts of your published work. We're also building out piracy-site coverage: a search-only sweep of known piracy/file-sharing domains (in progress, not yet live) and a deeper fetch-and-confirm check on candidate files (paused pending legal review) — neither is active yet.

Do you download videos from YouTube or TikTok?

Never. That sweep searches public titles, handles and URLs only — text, not media. We don't download or fingerprint anything from those platforms.

What does it cost?

There's a free plan (500 checks/mo). Beyond that: pay-as-you-go at $4 for 500 checks (prepaid credits, no subscription, they don't expire), or monthly plans from $10. Reach your monthly plan limit and you can top up any time with pay-as-you-go credits — no surprise overage. See pricing for the full breakdown.

Can I use it through an API?

Yes — two calls, /ingest and /check, with your own API key. Most people wire it into their upload flow in an afternoon.

Podcasts, audiobooks, audio drama — all supported?

All of them, treated identically. Nothing in the engine favours one format.

Ready when you are

Fingerprint your first track in minutes.

Free to start. No card. See a real match on your own audio today.

Create your free account