[Igelau]

> you don't need an SDK to do this

Does the code for cross-checking who holds what NFT on what platform just materialize out of whole cloth? Does Eth not have an SDK?

> and there is no need to have an agreed between both companies

Yeah, you would. The IP rights don't get thrown out just because there exists a pointer in a ledger that says you paid money to do widgety things with the content on someone's platform.