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How Does the Concept of “On-Chain” Vs. “Off-Chain” Metadata Apply to NFTs?

On-chain is immutable/expensive (contract data); Off-chain is cheaper/larger (image/traits), stored externally via a contract URI.
Greeks.Live16.11.25

How Does the Concept of “On-Chain” Vs. “Off-Chain” Metadata Apply to NFTs?

On-chain metadata is stored directly within the smart contract on the blockchain, making it immutable and fully decentralized but expensive. Off-chain metadata is stored on external services (like IPFS or a centralized server), which is cheaper and allows for larger, more complex data (e.g. high-res images).

Most NFTs use off-chain storage for the bulk of the asset data, with the contract only holding a link (URI).

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