Calhacks 2022 - Private NFT Metadata

View on Devpost

Inspiration

NFT metadata is usually public. This would be bad if NFTs were being used as event tickets or private pieces of art. We need private NFT metadata.

What it does

Allows users to encrypt NFT metadata based on specific conditions. Default decryption condition is holding more than 0.1 Avax token. Other conditions to decrypt can be holding other tokens, decrypting during a specific time interval, or being the owner of a specific wallet.

How we built it

Smart contracts were built with Solidity and deployed on Avalanche. Frontend was build with NextJS and Wagmi React Hooks. Encryption was handled with the Lit Protocol.

Challenges we ran into

Figuring out how to use the lit Protocol and deploy onto Avalanche. I really wanted to verify my contract programmatically but I couldn't figure out how with the Avalanche Fuji block explorer.

Accomplishments that we're proud of

Finishing a hackathon project and deploying.

What we learned

How to encrypt NFT metadata.

What's next for Private Encrypted NFTs

Apply this to more impactful use cases and make it more user friendly. I think the idea of encrypted metadata is really powerful and can be applied to many places. All about execution, user interface, and community.

https://devpost.com/software/private-encrypted-nfts?ref_content=user-portfolio&ref_feature=in_progress

https://privatemetadata.web.app/

https://testnet.snowtrace.io/address/0xb02f10543f4069ddF2D656B5D3098A642Bc28071