The first edition of the hackathon showcased projects that used Walrus Seal and Nautilus to build decentralized and verifiable data solutions.
The 2025 Haulout Hackathon challenged participants to create solutions in four areas: data economy and marketplaces, AI-driven workflows, verifiable authenticity, and data security. Out of hundreds of entries from 27 countries, the winning projects stood out for their innovation, technical execution, and potential to shape the future of data.
In the AI and Data category, first place went to Spectra, a content moderation system that filters harmful posts while keeping user data private. Second place was INFINITE HEROES, which transforms selfies into personalized comic books using AI and Walrus storage. Third place was TradeArena, an AI trading competition platform where all decisions and transactions are recorded on Walrus.
In the Data Economy and Marketplaces category, first place was Storewave, a marketplace for idle Walrus storage space. Second place went to Krill Tube, a video platform where viewers pay only for what they watch. Third place was Fundsui, a decentralized subscription platform for creators to offer encrypted content.
In Data Security and Privacy, first place was Wit With Withub, a decentralized encrypted code storage and collaboration platform. Second place was SuiVerify, which provides reusable identity credentials while keeping personal data safe. Third place was Chronos, a decentralized will release platform that securely transfers encrypted data to designated recipients if the user stops confirming their status.
In the Verifiable Authenticity category, first place was perma.ws, creating permanent encrypted web archives. Second place was Aver.Email, which verifies emails without revealing the full content. Third place was Delphi, a decentralized prediction market that fairly settles bets using secure oracle mechanisms.
The Best Technical Implementation awards went to Project S.O.N.A.R., a content marketplace focused on privacy; Tusk, an AI-powered recruitment platform that protects user data; and zkDungeon, a high-speed roguelike RPG with on-chain encrypted verification for all actions. These projects highlight innovation in privacy and technology.
The common thread among these winning projects is that they are reimagining what data can look like when truly decentralized. From AI-powered content platforms and encrypted collaboration tools to verifiable archives and privacy-protecting marketplaces, using Walrus Seal and Nautilus unlocks endless possibilities.
If you are ready to shape the decentralized data future, you are invited to apply for Walrus’s RFP to build your project.
About Sui Network
Sui is an L1 public blockchain redesigned from first principles to provide creators and developers with a platform capable of supporting the next billion Web3 users. Applications on Sui are built using the Move smart contract language and offer horizontal scalability, enabling developers to deploy applications quickly and at low cost.
