[EIP-1155 Multi Token Standard](https://github.com/ethereum/EIPs/issues/1155)
[EIP-2981 NFT Royalty Standard](https://eips.ethereum.org/EIPS/eip-2981)
[RFC 3986](https://datatracker.ietf.org/doc/html/rfc3986)
ERC1155 0xfFC2Cce303717f8926f232E199eFE1bf8b72F180
ERC20 0xF187E4165BbdDB64a6930DF9C4b655ce0bc7a9d7
OSv01 0xF3e52a344227A3079406645d315E4cAbEfA88095