Owning the NFT Doesn't Always Mean Owning Its Image
An NFT can remain on-chain while the media it points to changes or goes offline.
ERC-721’s optional metadata extension lets a contract return a tokenURI; that URI may point to a JSON file with an image URI. The standard explicitly allows metadata to be mutable and notes that storing all metadata on-chain can be expensive. So token ownership and media permanence are separate checks. Before buying, verify the contract and token URI, open the referenced metadata, and check where the image is hosted and who maintains it. If updates are possible, look for the collection’s policy on changes and long-term preservation—not just a marketplace preview. What would you inspect first?
Source: Ethereum Improvement Proposals, ERC-721: https://eips.ethereum.org/EIPS/eip-721
Market watch:
#NFTs #Web3 #Ethereum
An NFT can remain on-chain while the media it points to changes or goes offline.
ERC-721’s optional metadata extension lets a contract return a tokenURI; that URI may point to a JSON file with an image URI. The standard explicitly allows metadata to be mutable and notes that storing all metadata on-chain can be expensive. So token ownership and media permanence are separate checks. Before buying, verify the contract and token URI, open the referenced metadata, and check where the image is hosted and who maintains it. If updates are possible, look for the collection’s policy on changes and long-term preservation—not just a marketplace preview. What would you inspect first?
Source: Ethereum Improvement Proposals, ERC-721: https://eips.ethereum.org/EIPS/eip-721
Market watch:
#NFTs #Web3 #Ethereum