EIP-2547: Composable Multiclass Token

Opium.Team has decided to create Ethereum Improvement Proposal for Opium token standard to receive an official name. Opium token standard is also known as ERC-721o.

If you can give us some feedback and review, we will be really grateful!

The proposal you can find here https://github.com/ethereum/EIPs/pull/2547

Read more about Opium token standard