ZeroBot
ZK reCAPTCHA: Human Verification for Discord
Demo
About
The problem it solves ## The Problem It Solves Humans are still solving CAPTCHAs, but bots are already bypassing them. Discord is full of bots that slip through verification. Traditional methods are clunky, invasive, or easy to spoof. There's no reliable, private way to prove you're human. ### How ZeroBot Makes it Easier and Safer ZeroBot lets you prove you're human, once, and reuse that proof privately across apps. It offers a frictionless experience like OAuth, but decentralized, bot-resistant, and privacy-preserving. No more captchas, no more leaks, just real humans, verified cryptographically. ### Key Features - **Signed Challenge:** The user signs a challenge with their Ethereum wallet, proving ownership. - **Identity Reuse:** If the user has registered an identity (via zkPassport or Self), ZeroBot retrieves and verifies it instantly and privately. - **One Wallet per Identity:** The system checks whether an identity already exists, enforcing a strict 1:1 mapping before creating a new one. - **Private Storage on Aztec:** Identities are stored privately using Aztec’s encrypted state model, ensuring no public disclosure or on-chain fingerprinting. - **Modular & Reusable:** Once created, the identity can be reused across platforms, just like OAuth, but without trusting any centralized provider.
How it's made
Challenges we ran into At first we struggled to understand how to deploy our contract on testnet. Fortunately, the GitHub repo is well structured, and after diving deeper, we realized it wasn’t as difficult as it seemed. Big shoutout to aztec-starter that it helped us understand the testnet account creation flow and gave us a solid foundation to build on. Fortunately, the GitHub repo is well structured, and after diving deeper, we realized it wasn’t as difficult as it seemed. Big shoutout to aztec-starter, it helped us understand the testnet account creation flow and gave us a solid foundation to build on. It was a great reminder that even when things feel stuck, the right resources can unlock the path forward.