Key facts: Non-fungible tokens (NFTs)
ERC-1155 allows fungible and non-fungible tokens to be issued within the same contract, and is commonly used for scenarios such as in-game items.
Every fungible token is identical—for example, one ETH is indistinguishable from another—whereas NFTs are all unique.
Before placing an NFT order on a marketplace, check what you’re authorizing. A one-time approval for an entire collection allows the other party to transfer all the NFTs in that collection that you own.
Transferring, buying, and selling NFTs on Ethereum requires $ETH to pay gas. Current price: 2385.94.