On July 19, Vitalik Buterin, Ethereum co-founder, released a prototype of an anonymous message board integrating zero-knowledge proofs, ETH deposits, and AI moderation on the Aztec Network.
The platform allows users to post messages anonymously while preventing policy violations. AI scans content for issues, but moderators never access the identity of posters thanks to cryptographic protections.
Technical details and purpose
The demo, available on Buterin's GitHub repository vbuterin/aztec_experiments, builds on an idea from his 2022 blog outlining controlled anonymity through SNARKs (Succinct Non-Interactive Arguments of Knowledge). SNARKs prove truth without revealing sensitive data, similar to verifying age without showing personal details.
Participation requires ETH deposits to discourage spam. The AI flags problematic posts while zero-knowledge proofs prevent disclosure of authorship. Buterin described the project as a rapid "vibe-coded" experiment with complex features but no current plans for production or token issuance.
Aztec, a privacy-focused Layer 2 zkRollup on Ethereum, facilitates confidential transactions and private smart contracts, settling to Ethereum’s mainnet for security. This distinguishes it from other Layer 2 solutions mainly focused on scaling.
The demo addresses ongoing debates over privacy in crypto, especially after US sanctions on Tornado Cash in 2022. It demonstrates that anonymity and enforceable community rules can coexist.
