PENUMBRA

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OTC Auction

Safe Box with Crypto
[ 01 / THE PROBLEM ]

Public Exposure

Traditional public auctions expose your bids and trading strategies. Everyone sees exactly what you're doing, leaving you vulnerable to front-running.

[ 02 / THE COMMITMENT ]

Zero-Knowledge Bids

Penumbra leverages stealth addresses and ZK-proofs. You submit a sealed bid that remains cryptographically hidden on-chain.

[ 03 / THE REVEAL ]

Trustless Settlement

Once the auction concludes, bidders reveal their commitments. The smart contract autonomously settles the auction in a provably fair manner.

[ ZK ]

Penumbra

Sealed-Bid Auctions
[ MISSION ]
Penumbra brings absolute privacy to on-chain auctions. By leveraging Zero-Knowledge proofs and stealth addresses, we ensure bids remain completely hidden until settlement, preventing front-running and protecting trading strategies.
[ STACK ]
Built with Noir for ultra-fast ZK-SNARKs (UltraHonk), Scaffold-ETH 2 for robust smart contract infrastructure, and a native stealth address system for ultimate buyer and seller anonymity.