Transforming audio into a verifiable identity layer for defense, digital ID, and secure communications.
SoundLinks DID is like a QR code for audio – a patented protocol that embeds verifiable Decentralized Identity (DID) data directly into audible content—voice, music, or video—via an inaudible audio watermark. Just as QR codes embed information in visual form, SoundLinks embeds completely inaudible digital identifiers directly into audio streams.
Key capabilities:
Think of it as a secure passport embedded within sound—uniquely traceable and tamper-proof, ideal for defense, aerospace, and secure communications applications.

How SoundLinks DID Works
| Thales Focus Area | SoundLinks Use Case |
|---|---|
| Cybersecurity & Anti-Spoofing | Real-time voice authentication, deepfake protection |
| Secure Comms (Defense/Aircraft) | Embedded ID in cockpit or command voice systems |
| IoT / Embedded Systems | Tagging telemetry or machine-generated audio for traceability |
| Digital Identity & Biometrics | Offline verifiable DID layer for voice ID |
| Blockchain & Zero Trust | NFT-backed identity for mission-critical content |
| Content/IP Protection | Prevent tampering or unauthorized reuse of broadcast audio |