What Is the InterPlanetary File System (IPFS) and Why Is It Used for NFT Metadata?
IPFS is a decentralized, peer-to-peer file storage and sharing protocol. It is used for NFT metadata because it provides content addressing ▴ meaning the file's address is based on its content (its hash).
This ensures that once the metadata is uploaded, it cannot be changed or removed by a single entity, making the NFT data more permanent and censorship-resistant than a traditional centralized server.