Every verified onion address for Nexus Market. All resolve to the same market with the same account and balance. Try the first, and switch if it is slow.
A hidden service reachable at exactly one address stops being reachable the moment somebody points a flood at it, and flooding one is cheap. Publishing several at once means the pressure has to be spread across all of them to have any effect. For you the benefit is smaller and more practical: when one is slow, another usually is not, and moving between them costs nothing.
Your account, password and two factor setup. Your balance, open orders and message history. The listings, the vendors, the prices and escrow. There is no separate account per address and nothing to move across. If an order looks missing after switching, you are almost certainly signed out rather than looking at different data.
An onion address is fifty six characters derived from a key rather than chosen by anybody, so there is no pattern to help you and nothing to catch a slip. Two addresses differing by a single character are unrelated services with no connection to each other. Never take one from a screenshot either, because you cannot copy from an image and you will end up retyping it.
When the login screen loads, compare the onion printed on the page against your browser address bar, reading from the end backwards. The last characters are the expensive ones to match, because anybody generating a lookalike spends their effort on a convincing prefix. A copied storefront reproduces the design perfectly and cannot sit at the real address, and that contradiction is the whole test.
Start with whichever you used last. If it stalls at the connection screen, give it a full minute before judging, because a cold connection legitimately takes tens of seconds to build. If it still will not open, work down the list rather than reloading the same one. Once one answers, stay on it for the session, since switching halfway throws away a connection you already paid for and generally signs you out.
Check whether any other onion service works for you. If nothing does, the problem is at your end and a full restart of Tor Browser clears most of it. If other onions work and these do not, it is the market, and it usually returns within hours. The one thing not to do is go searching for a replacement address, because that is exactly the moment copies are built for. Nothing in your account expires because the storefront was unreachable for an afternoon.
Keep all of them somewhere you can reach without a search engine, in a bookmark folder, a password manager entry or on paper. Comparing your saved list against this page occasionally takes seconds and is far safer done calmly than during an outage. See why the address rotates for the longer version.
Nexus Market