Non-fungible tokens, or NFTs, are basically digital certificates of ownership, a virtual claim that an image, GIF or even a song belongs to you. And while some artists were initially happy to jump into this new space, others have been surprised or furious to find that people, not themselves, beat them to it. Last year, several musical artists publicly complained after the website HitPiece temporarily listed NFTs for their songs or albums without the artists’ permission. But does selling someone else’s art as an NFT break the law? Marketplace’s Kimberly Adams spoke with Aram Sinnreich, a professor and chair of the communication studies division at American University, around the time of this dust-up. He said all this gets into a gray area, at least when it comes to existing copyright law.