Non-fungible token standard

[agraebe]

As per previous discussions (see Paper doc), @friedger will create a proposal for a non-fungible token standard.

I'm creating this to keep track of the conversations

[agraebe]

the most recent NFT proposal is in here: https://github.com/friedger/sips/blob/main/nft-standard.md

@markmhx and @hstove could you take a look please?

[hstove]

@friedger please open a PR so we can properly review, etc!

[friedger]

There are now more than 5 contracts on mainnet that implement the trait. See also https://www.tofauti.net

[314159265359879]

There are now more than 5 contracts on mainnet that implement the trait. See also https://www.tofauti.net

That means SIP-009 is now activated, right? Want to update that here https://github.com/stacksgov/sips/blob/main/README.md? The link didn't work for me, alternatively this shows 7 contracts with the impl trait for the nft trait:
https://search-clarity.dev/?declare=trait&use=trait&search=nft-trait.nft-trait

[friedger]

@314159265359879 I fixed the link. thisisnumberone has two versions and does not mention the trait but is still compliant.