For an audio platform · trust & safety
How do you prove a recording is real — and catch the moment it was altered?
Provenance that travels with the file — the seal is part of the audio.
Today audio authenticity relies on metadata that's easily stripped, or detectors that only guess — nothing travels with the file itself.
Why now cheap voice cloning makes 'is this real?' a daily question, just as provenance standards are taking shape.
Use cases Journalism, legal & compliance, insurance, courts, media platforms.
Interactive demo ↗The question
A recording can be trimmed, spliced or regenerated, and the file looks the same. “Trust me” isn’t evidence.
The approach
Slice the audio into a chain and seal each slice. The seal rides inside the file — nothing to look up, nothing to phone home. Re-cut any slice and the chain says so.
The feature
A live read-out — chain integrity, slices, altered slices, sealed-at — over a signal field of the whole recording. Tamper with one slice and integrity drops on the spot.
Function
The seal read-out
Chain integrity and slices in the chain, read straight from the file — not asserted, measured.
Function
Re-cut a slice, the seal breaks
Alter one slice and the chain no longer matches its seal — the tampered slice is flagged and integrity drops.