idonce

idonce proves that a real human is actively present and approving an action — without revealing their identity. HOW IT WORKS 1. A platform shows a QR code 2. You scan it with idonce 3. Confirm with Face ID or fingerprint — done That's it. No puzzles, no accounts, no personal data shared. WHAT IT PROVES idonce generates a cryptographic proof that a real person on a genuine device has actively confirmed an action. This proof is issued as an eIDAS 2.0 compatible Verifiable Credential (SD-JWT-VC) — the same standard the EU uses for digital identity. PRIVACY BY DESIGN • No name, no email, no phone number collected • No tracking, no cookies, no fingerprinting • Your identity is a pseudonymous device-bound key • Biometric data never leaves your device • You choose exactly which claims to share SECURITY • Private key stored in Secure Enclave • Apple App Attest Integrity verification • Keys cannot be copied or exported • Biometric authentication required for every verification BUILT ON OPEN STANDARDS • SD-JWT-VC (IETF) — Credential format with selective disclosure • OpenID4VP — Credential presentation protocol • OpenID4VCI — Credential issuance protocol • eIDAS 2.0 compatible — interoperable with EU digital identity wallets USE CASES • Bot protection for communities and forums • Fake review prevention for e-commerce • Sybil resistance for voting and governance • Real-time transaction confirmation for fintech idonce is not an identity system. It doesn't know your name. It answers exactly one question: "Did a real human on a genuine device just confirm?" Open source. Zero external dependencies. Built in Germany. -- Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://www.idonce.com/privacy Terms of Service: https://www.idonce.com/terms