Pronounced as “one of one,” a 1:1 Art refers to an NFT collection with only one copy. Such NFTs are rare since they’re the first and last. You can buy 1:1 Arts on marketplaces like OpenSea, but the chances of nailing one are slim since they’re often expensive and desired by many top-notch investors.
Most hand-drawn NFTs and photographs come as 1:1 Arts.