In the context of Web3 and cryptocurrencies, auctions have taken on new forms, especially through decentralized platforms. Smart contracts are often utilized to facilitate the trustless execution of an auction without the need for a centralized authority. Users can place bids using cryptocurrencies, and the auction ends after a predetermined time, with the highest bidder winning the item or service being auctioned. Unique products, NFTs (Non-fungible Tokens), and even virtual real estate in metaverses can be subject to auction.