SHADOW
AUCTION
Sealed-bid NFT auctions where your bids remain invisible. No one sees what you bid until the auction ends.
How It Works
True privacy-first auctions on the blockchain
Create Auction
List your NFT with a minimum bid and choose your auction duration from 1 to 24 hours.
Private Bidding
Bidders commit sealed bids using hash commitments. No one can see any bid amounts.
Reveal Phase
After the auction ends, bidders reveal their bids. The contract verifies each commitment.
Settlement
Highest bidder receives the NFT. All other bidders can withdraw their funds instantly.
100%
Bid Privacy
Bids invisible on-chain during auction
5
Duration Options
1hr, 3hrs, 6hrs, 12hrs, or 24hrs
SHDW
Bid Token
Private token for sealed bidding
Built on COTI Testnet
Shadow Auction leverages COTI Network's privacy-focused L2 infrastructure. Bids are committed as hashes, making them completely unreadable on the block explorer. Your bidding strategy stays yours.