Every NFT trade you've ever seen boiled down to a headline — "Bought for X ETH," "Sold for Y" — hides a surprisingly intricate pipeline of cryptography, smart contract logic, off-chain indexing, and UX engineering. If you've only interacted with NFT marketplaces as a user clicking "Connect Walle...

Source: [Dev.to](https://dev.to/ishan_maity_48/from-wallet-to-ownership-how-nft-marketplaces-work-4a8i)

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