Do OpenSea NFTs have a special notion about the "collection" they belong to encoded in the Smart Contract?

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Ethereum Dex nft wyvern

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  • wyvern-v3

    Wyvern Protocol v3.1, Ethereum implementation

    • Opensea is built on top of the Wyvern Protocol which has an exchange contract which is responsible for managing marketplace stuff like fixed price sales and dutch auctions. English auctions are off chain and managed via signed transactions. If you open the opensea contract on etherscan and look for "SaleKindInterface" you'll see a comment that says "English auctions cannot be supported without stronger escrow guarantees." I'm not sure why that is from a technical perspective and nobody (including opensea support) has been able to answer that for me.

  • SurveyJS

    Open-Source JSON Form Builder to Create Dynamic Forms Right in Your App. With SurveyJS form UI libraries, you can build and style forms in a fully-integrated drag & drop form builder, render them in your JS app, and store form submission data in any backend, inc. PHP, ASP.NET Core, and Node.js.

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