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OpenSea operates the world's largest marketplace for non-fungible tokens (NFTs), enabling users to buy, sell, and create digital assets across multiple blockchain networks including Ethereum, Polygon, and Solana. Founded in 2017 and headquartered in New York, the company has established itself as the dominant platform in the NFT ecosystem, facilitating billions of dollars in transaction volume since inception. OpenSea achieved a $13.3 billion valuation through its Series C funding round, reflecting investor confidence in the growing digital collectibles market. The company continues expanding its multi-chain infrastructure and developer tools to support the evolving web3 creator economy.

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