Build the future of privacy. 

Join the Privacy4Web3 hackathon.

$130,000 in prizes!

Web3 needs customizable privacy that is accessible by users and developers on any chain. Oasis invites you to push the limits of what’s possible with privacy in crypto using our confidential computing technology.

The Privacy4Web3 hackathon is an annual event for builders in crypto to experiment and innovate together to build to future of privacy for decentralized finance, artificial intelligence, gaming, and more.

Who?
You and any friends incrypto who care about privacy.
When?
Sep 19 to Nov 11

Where?
Online and onchain anywhere in the world!
Register to Join
See Last Year's Winners
Join Hackathon Chat

What is ROFL?

ROFL (Runtime Off-Chain Logic) is a framework that adds support for off-chain components to runtimes like Oasis Sapphire. It enables non-deterministic behavior and access to remote network resources.

ROFL also allows for off-chain components to seamlessly communicate with the onchain realm to bring about full composability across different blockchain platforms and off-chain computation stacks.



ROFL enables decentralized agents powered by AI to have private state and interact with the world including other agents via transactions, queries and oracles, making it much easier to run complex workloads in a decentralized fashion.

What is Sapphire?

Oasis Sapphire — the first and only confidential EVM in production — provides developers with the ability to build EVM-based dApps with customizable levels of privacy.

Sapphire’s confidential computing gives builders the tools to integrate privacy at any point of the spectrum: 100% private, 100% public, or anywhere in between.

What to Build?

Explore the Oasis Network’s familiar development environment with industry-leading confidentiality. Discover a new world of opportunities for developers across all EVM networks.

  • New teams who are building in crypto are invited to integrate Oasis technology into their early-stage application to improve user experience and onchain data confidentiality.

  • Builders who have already launched applications in crypto are also invited to explore Oasis confidential computing for the benefits it could add to your existing userbase.

DeFi

Build privacy-preserving applications around dark pools, dutch auctions, cross-chain swaps, and more!

NFTs

Brainstorm tools for data privacy for NFTs and related offchain data.

Gaming

Break the link between in-game profiles and onchain accounts! Create trustless, hidden fog-of-war mechanics, and explore the agent-gaming design space to lay the foundations for more captivating games!

Trustless Oracles

Use verifiable and confidential off-chain computation governed by policies stored onchain.

AI Agents

Store agent private keys onchain, verify offchain agent workloads, and more.

Be Creative!

All ideas that push the boundaries of onchain confidentiality are welcome!

Requirements and Judging Criteria

Submission Requirements

  • Provide a short summary of your project, including a description of what it is and how you want to evolve it.

  • Provide a link to your code repository for judging and testing. Code must be open sourced.

  • Provide smart contract deployment links (addresses on Sapphire mainnet or testnet)

  • Include a video (less than 5 minutes) that shows how your project works and why you built it. Videos must be uploaded to YouTube, Vimeo or a similar site and made public.

  • All projects must use Sapphire or ROFL. While Emerald, the Oasis EVM Paratime is live, deploying on Emerald does not qualify for the hackathon.

Judging Criteria

  • Implementation Quality

    Does the project demonstrate high-quality development?

  • Potential Impact

    How large an impact could the project have? How many users could the project potentially attract?

  • Confidentiality

    How well does the dApp utilize confidential smart contracts?

  • User Experience

    Does the project’s design make the user experience easy?

  • Bonus: Innovation

    How well does the project utilize the new Oasis confidential Runtime Off-chain Logic (ROFL) to solve a problem?

Learn More

Hackathon Schedule

Oasis has organized a fantastic lineup of mentors and judges, all of whom are privacy experts across different segments of Web3.

These friends and partners will be on hand throughout the hackathon to provide exclusive mentorship to participants in over a dozen events.

Details will be shared with confirmed registrants.

Learn More

Key Dates

  • Registration Opens: September 19


  • Submission Deadline: November 1

  • Winner Announcements: November 11

  • Demo Day: November 19

Learn More

About Oasis

Better dApps require smarter privacy. We provide a smart privacy layer all of Web3 and AI.

Latest Blogs

Exploring The Utility Of CDP Stablecoins On Sapphire

An introduction to CDP stablecoins, examples, prospective benefits, and a preview of CDPs on Oasis. 

‍Introducing TDX Support for the ROFL Framework‍

Intel's latest confidential computing technology, Trusted Domain Extension (TDX), is on the testnet for the ROFL framework.

Oasis and PixelRealm Announce Two Crypto Gaming Grant Recipients 

As part of a joint-grant awarding, the teams at Oasis and PixelRealm are proud to announce two recipients of Web3 gaming-focused grants. 

See all

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