Keep it Confidential:
The Sapphire Hackathon

Build the first ever confidential dApp in Solidity, and win prizes. Sapphire, the Confidential EVM ParaTime, allows you to use familiar tools to build confidential smart contracts and dApps.

Date icon
WHEN

September 14, 2022 – October 21, 2022 (midnight UTC)

(The deadline has been extended by a week)

Prize icon
PRIZES
  • 1ST PLACE: $5000 (IN ROSE)

  • 2ND PLACE: $2500 (IN ROSE)

  • 3RD PLACE: $1500 (IN ROSE)

What is Sapphire?

Sapphire is the first and only confidential EVM-compatible runtime. Sapphire offers Solidity developers a familiar development environment, but with the added benefits of Oasis’ privacy-preserving technology.

Sapphire allows for:

  • Confidential smart contract state, end-to-end encryption, confidential randomness

  • EVM compatibility

  • Easy integration with EVM-based dApps, such as NFTs, Metaverse, crypto gaming and DeFi

  • Scalability — high throughput of transactions

  • Low-cost — 99%+ lower fees than Ethereum

WHAT TO BUILD

Some ideas for inspiration. We welcome great ideas and applications beyond the following scope:

Applications with
Sensitive Data:

Sapphire lets you bring sensitive data, like health, financial, and personally identifiable info on chain safely.

Confidential DeFi:

MEV-proof DEX, private or undercollateralized lending. 

Gaming

Many popular Web2 games we know and love have private state or game logic. Sapphire enables bringing more on chain.

Confidential NFTs:

Data-backed NFTs with associated private information to bring NFT utility to the next level.

Decentralized Society and Soulbound tokens:

With DID dApps can verify and whitelist users. Sapphire can be a game changer as dApps can now be built with these benefits without risking users’ privacy. 

DID - Decentralized identity:

Maintaining sensitive information linked with external-facing data has always been challenging for dApps. But with Sapphire, you can build and create privacy-preserving data-backed tokens or Soulbound tokens, a critical pillar for decentralized society.

What to Submit?

  • 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

  • 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.

JOIN NOW

Are you looking for other builders to create something groundbreaking together?
We can help!

FIND A TEAM

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?

  • Innovation: How creative and unique is the project?

  • User Experience: Does the project's design make the user experience easy?

  • Originality: The project must be substantially different from any other app submitted by the same submitter/team/organization and must be the original work of the submitter, be solely owned by the submitter, and not violate the IP rights of any other person or entity.

  • Confidentiality: How well does the dApp utilize confidentiality?

GET STARTED

Watch

See the tutorial

JOIN

Join our Discord

READ

Read the documentation

Subscribe

Subscribe to newsletter

The Oasis Sapphire ParaTime is currently on testnet. This is an early release.
We’d appreciate everyone’s patience and support at this stage, and through the Hackathon.
At Oasis Foundation we believe in your privacy, so you can choose to browse our site without any tracking or by clicking “Accept”, you help us to improve our site and help us grow our ecosystem. View our Privacy Policy for more information.