Vitalik Buterin, co-founder of Ethereum, presented a demo version of an anonymous message board. This project is deployed on the second-level Aztec network, and its source code is already available on the GitHub platform. Buterin described the development as an early prototype created in an experimental mode. The mechanism of the system requires the user to make a deposit in ethereum through a smart contract. The amount and address of this deposit remain public, but the messages themselves are completely anonymous. They have nothing to do with the source wallet in the network's open data. The user can withdraw their funds back to the main network at any time. Upon withdrawal, the recipient's address becomes known, but the publication history remains securely protected.

The system uses a clever mechanism for limiting the frequency of publications, which directly depends on the size of the deposit. For example, a contribution of 0.01 ether allows you to send up to ten messages per hour. The unused limit can be accumulated, but a new deposit does not allow you to bypass the established delays. An important feature of the project is the built-in moderation based on artificial intelligence. The text of the rules is stored directly in the blockchain and is limited by a small amount of memory. A local daemon with a compact language model is used to automatically check publications. This model works through the llama cpp library and does not access external servers, which guarantees complete data privacy.

The appointed moderator has the right to hide messages that violate the established policy of the platform. Such publications disappear from the general feed, but remain available through a special warning. The author of a message that violates the rules automatically receives an additional delay before the next publication. Moderator rights can be flexibly transferred to other addresses or to decentralized organizations. The repository is currently at an early stage and contains known technical limitations. For example, there is a vulnerability that allows you to block a contract, although users' funds remain completely safe. Developers will have to strengthen cryptographic evidence and conduct full testing of browser scripts.