The creation of open standard for exchange, submission and publication of reproducible documents is critically needed. Its widespread adoption within the academic publishing world would benefit the discoveries and persistence of research reported in this form. Substance in collaboration with Stencila meets this need by developing an extension to the DAR
format. This will allow the data, code and computed outputs (graphs, statistical results, tables) embedded in a reproducible document to be recognised and presented online as an enhanced version of the published research article. In order to do this, we are representing these assets in JATS XML, the publishing standard through which research manuscripts are processed through the publishing workflow.