token: non-fungible and semi-fungible proposal about solana-program-library HOT 6 CLOSED

I continue to hate decimals a lot...

from solana-program-library.

Problem: Transfer and MintTo's ability to overwrite the destination token account item value could be use to attack empty wallets. Token accounts probably need to indicate they're willing to accept any item, possibly as an argument into InitializeAccount

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Another path:

1. SFTs are really just FTs. The benefit of the proposal above is that SFTs of the same "collection" can share a Mint. Maybe that's not a big deal, especially if the Mint receives a URL/address to additional metadata.
2. NFTs are a different program: spl-item or spl-unique-item perhaps. Very similar setup as spl-token but with some complexity removed. In this scenario NFTs of the same "collection" can still share a Mint. (I strongly dislike the approach of NFTs being represented as a spl-token with just one account, seems wasteful and too difficult for clients to find all the NFTs of the same collection)

This pushes more complexity onto the client than the above proposal.

from solana-program-library.

I strongly dislike the approach of NFTs being represented as a spl-token with just one account

I don't quite follow what the alternative is. An account that can hold multiple NFTs from a collection?

too difficult for clients to find all the NFTs of the same collection

Isn't this the same as finding the total supply of a fungible Mint?

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I don't quite follow what the alternative is. An account that can hold multiple NFTs from a collection?

Say there's an spl-item program with a Mint and Account like spl-token has. The Account here doesn't hold an amount. It probably only has a SetOwner-like instruction as well, to transfer ownership of that NFT to another user.

Isn't this the same as finding the total supply of a fungible Mint?

That's a little different to me. Without a common Mint to try all the NFTs together in a collection, it's hard to be able to find all the hockey cards or my little ponies. You can't tell what's a card and what's a horse.

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Nope, not going to pursue this approach. The item brings baggage to the world of fungible tokens. We can do better

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