Thank you for introducing Joyid to the Bitcoin Forum. I'm Cipher, the founder of JoyID, and I'm delighted to be here to discuss our new solution to wallet technology. Allow me to provide some insights into the mechanics of this innovative wallet.

First and foremost, it's crucial to highlight that JoyID is a non-custodial wallet. Our server never hosts your keys or any form of key shards. With JoyID, you retain 100% control over your private keys.

Furthermore, our wallet doesn't directly access your biometric information. While it does utilize the system's biometric verification feature, the wallet only receives the system's response in the form of an ECDSA signature. It remains entirely unaware of how you choose to identify yourself -- whether through Face ID, fingerprint recognition, or a PIN code.

Our technology leverages Passkey, a standard supported by the FIDO Alliance and widely adopted by modern devices. It utilizes a dedicated hardware secure chip to generate and manage asymmetric keys, enabling secure signature and verification services right on your device. Passkey is compatible with a range of operating systems, including iPhone, Android, Windows 11, MacOS, and Linux. Passkey makes JoyID a wallet with the secure level between software wallet and hardware wallet.

By combining these technologies with account abstraction (which maps multiple devices/keys to a single account) on Nervos (a UTXO PoW + RISC-V VM chain), we've created a wallet that's non-custodial, passwordless, mnemonic-free, and doesn't require installation. It also prioritizes biometric security. Our wallet is permissionless, chain-agnostic, and offers instant onboarding feature (10s to create a wallet and never lose). It's a game-changer for the crypto world.

And as a Bitcoin advocator and hodler, I'm working on the following features to benefit Bitcoin community.

- Bitcoin support, with air-gapped wallet feature, working
- Lightening network support, planning
- RGB support, planning
- Nostr support, already supported

Feel free to ask me anything about JoyID, thanks.