For the first time, you can hold
digital ownership papers
for who you are.
Not borrowed from a platform. Not rented from a network. Yours.
Patent-protected, blockchain-anchored, biometric-backed.
The foundation of digital ownership
Three things stacked together, so nobody — not a platform, not a company, not even us — can take your identity away from you.
Patented Biometric Identity
CSIRO-origin architecture, David Matthews' patented system, renewed through 2030. The foundation nobody else has.
Blockchain Digital Ownership
Your claim to ownership is anchored on-chain — irrefutable proof that a profile or piece of content is genuinely yours.
Self-Sovereign by Design
No platform dependency. Email and your own credentials are the proof. Platforms can't delete your identity — they never held it.
Three steps to sovereign identity
No servers store your data. No company controls your identity. Everything stays on your device and the blockchain.
Verify Your Identity
Upload your government ID and take a selfie. Images are hashed locally using SHA-256 — they never leave your device.
Biometric Authentication
Scan your fingerprint or face using your phone's built-in security. Your biometric creates a unique cryptographic proof.
Blockchain Registration
Your identity hashes are stored on the blockchain. Only you control it. Anyone can verify it. No one can fake it.
Built for the age of AI
Deepfakes, identity theft, and synthetic media are eroding digital trust. CertainID is the antidote.
Zero-Knowledge Privacy
Your biometric data and document images never leave your device. We prove identity without collecting it.
Anti-Deepfake Protection
Sign your content cryptographically. Anyone can verify it's really from you — not an AI-generated fake.
Fully Decentralized
No central authority. Your identity lives on the blockchain. If CertainID disappears, your identity doesn't.
Social Verification
Link your Twitter, YouTube, and other accounts. Prove your social media presence is authentically yours.
Prove your content
is really yours.
Sign any image, video, or document with your biometric identity. A cryptographic fingerprint is registered on-chain — permanently linking the content to your verified identity.
No one can fake it. No one can steal it. The proof lives forever on the blockchain.
Identity for every industry
From content creators fighting deepfakes to governments modernizing citizen services.
Social Media
Verify creator identity
Finance
Decentralized KYC
Government
Digital citizen services
E-Commerce
Fraud prevention
Join the waitlist
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