When you have a Hero Box or “Pack” on Nifty’s you can “open” it and the Pack will reveal a set of new NFTs called “Pack Contents”.
Packs on Nifty’s are 721a, and can only be opened on Nifty’s. The reason for this is because the mechanic needed to give you your “Pack Contents” is only available on Nifty’s! The entry point of Pack Openings can be found in each respective community.
Packs can be opened one at a time. Inside the Packs are a new set of NFTs.
The Pack Contents can be a mix of ERC standards and chains. An example of Pack Contents would be if the Pack contains an 1155 on Ethereum and a 721a on Palm.
The Packs are not burned. They will still be visible in your profile page and the marketplace. The metadata and media of the Pack will change to note that the Pack has been opened.
This process might take a bit of time, so don’t worry if your Pack’s media and metadata do not switch immediately in your profile.
Additionally, it will take 10-30min for a Pack’s Contents to appear in the profile page and membership page.
Please refer to THIS video of Pack Openings