Review of the 2nd Web3 Privacy Hacker Marathon on Oasis Network

Hackathon Summary

The Privacy 4 Web3 Hackathon: 2nd Edition, hosted by Oasis Network, attracted 50 registered projects and 149 developers. The focus of the event is to provide customizable and interoperable privacy solutions for Web3 and AI. The total prize pool is $130,000, with development work centered around Oasis’ Sapphire EVM and Runtime Off-chain Logic (ROFL) framework. These technologies are integral to the Hackathon.

The main sponsors include PixelRealm and Aethir, which provide decentralized GPU infrastructure to support the advancement of AI and gaming. Google Cloud provides up to 2,000 US dollars in cloud computing service credits to participants. The event provides practical experience and networking opportunities, promoting community development and integration within the Oasis ecosystem.

This Hackathon highlighted the potential of Oasis as a first-layer blockchain for confidential applications, as well as supporting Ocean Protocol’s broader goals of enhancing data privacy and innovation. By encouraging new projects and community interaction, the event supported the ongoing development of Web3 technology.

Hackathon Winners

Developers award winners on Sapphire and ROFL

• 1st Place: SQUIDL - A privacy-focused payment platform that utilizes Oasis Sapphire for secure transactions. It simplifies cross-chain payments through the generation of anonymous addresses and ERC-5564 challenge solutions, and integrates with Ethereum Name Service.
• 2nd Place: Futures on Chain
• 3rd Place (Tie):
• Priva Health
• CAAI (Copyright Aware AI)
• CompensatePaw 3
• PrivateFeedback
• CLPD Stablecoin Private Transactions
• 4 th Place: Minesweeper

Ocean Nodes - Tokenized Intelligence winner

• 1st Place: DeFlow - Provides drag-and-drop interface and automated task execution to facilitate AI model training in the Ocean Network, and improves efficiency using custom Docker images.
• 2nd Place: confidential-data-exchange - A decentralized platform for secure AI model trading, utilizing end-to-end encryption and NFT for asset tokenization within Ocean Protocol.
• 3 rd Place: CAAI (Copyright Aware AI)

Calculate Bounty - Sponsored by Aethir, winner of Hackathon Computing Partner Award

• 1 st Place: Futures on Chain *2nd Place: Priva Health
• 3 rd Place: CAAI (Copyright Aware AI)

Oasis-driven embedded wallet award winner

• 1 st Place: oasis-btc - Integrate Bitcoin key management into smart contracts to enhance transaction security through secp 256 k 1 elliptic curve.
• 2nd Place: rofl rng recovery - Enhancing user recovery through offline computation, providing randomness and privacy in the Apillon embedded wallet using ROFL.
• 3rd Place: Social and Email Authentication with Social Recovery - Ensure account management through email and social media verification using modular Solidity libraries.

Oasis Sapphire won the innovative decentralized AI application award

• 1 st Place: SovereignAISearch-oasis-Protocol - a decentralized AI search protocol that prioritizes user data control through blockchain-based privacy and smart contract management.
• 2 nd Place: Futures on Chain

Winners of additional prizes developed on Sapphire and ROFL

• Audit points award: Priva Health, Futures on Chain, SQUIDL, CompensatePaw 3, CLPD Stablecoin Private Transactions

For more details about these projects, please visit

About the host Oasis Network

Oasis Network aims to enhance privacy in the Web3 ecosystem and positions itself as a key player in blockchain technology. The organization is known for developing privacy solutions that integrate these features to meet the confidentiality needs of decentralized applications. As a participant in the industry, Oasis Network strengthens the fundamental elements of Web3 by providing a powerful privacy layer. This commitment aligns with its mission to create a secure and private digital environment globally.