The verify approach
For readers who did not find the address themselves. Every article looks at one specific way the address arrived, and walks through how to check it before opening it.
The three addresses
Nexus Market publishes these three onion addresses. Present as supplied, in no order, with no ranking. This site does not probe them and shows no uptime figure.
nexusb2l7fmqnefwphyy7m5zjhlkytlbo7qbb5lu5dlczr3azgii2gyd.onion
nexusma2iqgauqqvjcgds4ckv5xbf272tkfagq4epojjhsgleqpwxiqd.onion
nexusabcd6tyfhdwilyitaqiri6tisj2v2hueyjuj6qkvd6azvi5tuqd.onion
Verification is not a badge and it is not a promise. It is a small number of quiet checks that make it less likely you are looking at the wrong address without knowing.
The verify approach does not use uptime lights, favicons, or trust marks. It uses comparison, patience and one or two independent sources.