Turning sound into a secure, verifiable identity layer for the physical and digital world.

🧩 What is SDID?

SoundLinks DID (SDID) is like a QR code for audio – a revolutionary next-generation protocol that embeds unforgeable digital identity (DID) data directly into audible content—such as music, voice, or video—using a patented, inaudible sound-layering algorithm. Just as QR codes embed information in visual form, SoundLinks embeds completely inaudible digital IDs directly into audio and video content.

This patented technology provides:

• Digital DNA for music, voice, and video content
• Verifiable ownership even when content is remixed
• Real-time authentication at point of playback—even offline
• Blockchain-linked NFT integration for Web3-era authenticity

Unlike traditional watermarks, SoundLinks maintains 100% audio fidelity using quantum wave theory-based patented technology. Expected for use on major platforms like YouTube, Spotify, and TikTok, it sets new standards for creator rights protection and monetization.

🛠️ How It Works

• An SDID is generated and embedded into the audible digital asset.
• The SDID is then minted into an NFT, which represents ownership and rights.
• This creates a two-way anchoring between the on-chain NFT and the off-chain asset.
• Playback of the content enables real-time validation, linking directly back to the NFT on blockchain.

SDID is also a kind of NFT.

🌐 Blockchain & Web3 Advantage