Since you don't have physical gold, you can't expect anything good here. You can take as an example by tracking usd backed stablcoins. Then you will understand how fake backed scams are running.
Good point. There have been so many scams out there, that it's hard to separate the "good" tokens vs the "bad" ones. Your better off "hodling" physical Gold yourself as long as you don't disclose its location to anyone. A well-hidden safe deposit box may be all you need to keep your Gold investment safe for a very long time. Most of these boxes are waterproof and fireproof, making them a great way to store your bullion. I wouldn't trust a Blockchain-based token that claims to be "backed by Gold", unless the issuer provides some sort of legally-binding proof. Most of the Gold-backed tokens I've stumbled with, don't allow you to trade them for real Gold. You're just "hodling" a virtual asset that's speculatively linked to the price of real Gold.
Based on my findings, Paxos Gold and Digix Gold are the only legitimate Gold-backed tokens in the crypto/Blockchain industry. The rest are simply a complete fraud. Some say that Tether's Gold and stablecoin offerings are shady because of the company's lack of transparency. That's why we need heavy-handed regulation in the crypto industry, in order to legitimize it as much as possible. Only then, money will start pouring in from institutional investors, paving the way for truly legitimate tokens that are backed by real world assets/commodities. Just my thoughts