Sometimes, yes, if the record labels are on top of it. There's technology in place now that enables major record labels to know when their licensed content is being streamed or accessed. They can be alerted to it, but smaller, independent labels wouldn't have as many resources to be able to track that. The Internet is so vast and ubiquitous that it's almost impossible to know where and when your intellectual property is being consumed.
On May 7th, 2018. See this statement in context.