Empire Market is current, original and developing for the ceiling of darknet marketplaces on the tor network.
It takes almoust all of it's majormain features from now Alphabay. And calls itself a replacement of it.
The validity of It's URL can be verifiable by using the dark web marketplace's own link-verifier webpage http://empiremarket-url.com/.
If onion URLs links out of work, here is the onion links where you can find active darknet marketplace mirrors http://empiremarket-url.com/