| Project | NFT Implementation |
| ---- | ---- |
| Bitcoin | Ordinal Inscriptions |
| Ethereum | [[Ethereum Proposals#EIP-721\|EIP-721]] |
### Use cases:
- Things that should be only generated or created once
- Things are unique to themselves, non-fungible, non-transferable
- Things online requiring cryptographic authentication
- Verifiable chain of custody; transfer of ownership
- Fair use claims of content
> [!example] Examples
>
> Tokenized Art or digital collectibles
> Single-use cryptographic access tokens
> Birth certificates
> Concert tickets
> Digital identities: economic or otherwise
> Web domains