Inside Details Why Crypto Wallet Usage Has Increased Globally
no servers. no databases. no biometric trace.
Beyond a wallet, a comprehensive security solution for your crypto assets.
Self-custody biometric secured wallet. Device agnostic.
Secure a tag name for each of your private keys.
Recover access to your wallet by retrieving your zk-face proof from the blockchain.
Store a proof of your password in an NFT and store it in the blockchain.
ZELF uses a novel non-biometric encryption system permitting full control to the users.
ZELF doesn’t ask or track for any personal identifiable information.
ZELF is an open source architecture, community driven.
ZELF protects information and digital assets with zk Face Proofs, proprietary technology.
Biometric Wallet, Private Key Manager and Recover Service
ZELF is a US-registered company offering an exclusively suite of self-custody services powered by zk Face Proofs architecture. Among the product offered are Zelf Name Service, ZelfKeys and Zelf Insurance (2026).
zk Face Proofs is a proprietary encryption algorithm replacing legacy hardware root of trust architectures, an enabling biometric root of trust architectures.
zk Face Proofs generate a privacy-preserving binary representation of a user’s face, without storing any biometric data. This ensures that any type of data (private date or metadata) is never exposed or stored in the device or server, enhancing the security and privacy of the service.
Zelf Proof is the implementation of zk Face Proof for a private key.
This is the visual representation of the Zelf-Proof. In the case of Zelf Name Service, our flagship product, each Zelf-QR code represents a proof of a the private key.
ZELF does not use servers, instead it relies on encryption and decryption from the local device. In addition, ZELF doesn’t use databases, instead it relies on decentralized storage systems like Arweave, IPFS, and AVAX Blockchain.
ZELF will release a decryption library enabling anyone to decrypt their Zelf-QR codes.