Super! I think your way of handling the blockchain is how it should be, no breaking of copyright laws, although some may debate the fact that embedding Soundcloud or YouTube in a new publication and earn money with it, may infringe copyright laws, but I personally debate such law, since one can argue that this is not more than providing a link (whether it is in fact a link or embedded code) and when using it for some new work, a self written article, maybe with more links and images added to it, the work becomes a complete new work and the value is not in the link provided, but the publication as a whole. I do very much the same as you do: I embed the code for Soundcloud or YouTube in a Steemit post, and provide a link to the source under the embedded code window, or in a separate note at the bottom of the post.