Turn on the “Reveal on Mint” option to allow minters to get a “sneak peek” of their art on their NFT after minting. This is secure and does not expose the base URI.
When you’re ready to reveal your collection, please keep in mind that the base URI will be exposed. If your collection hasn’t minted out yet, it may be possible for some super smarties to snipe the upcoming rares in your collection based on math.
When your collection has minted out, or even if it hasn’t and you’re ready to reveal without concern for rarity sniping, click on the “My Profile” tab and there will be a button to reveal your collection. Follow the prompts shown to complete this step.