Hi nusenu,
The spec isn't done :P Seriously though, no it's not a bug. If you check nodelist [0] you'll see that this type of hex-encoded nickname is normal for generating a descriptor. If you check CollecTor history for the node your mention [1] you'll see the result of building a descriptor. Metrics-lib parses this out in ServerDescriptorImpl [2]. Which then shows up in Atlas via Onionoo in DetailsStatus [3] during NodeDetailsStatusUpdater [4].
I hope that clears things up. (I know I skipped a full stack trace but its C and Java--cut me some slack)
--leeroy
[0] https://gitweb.torproject.org/tor.git/tree/src/or/nodelist.c#n499 [1] https://collector.torproject.org/recent/relay-descriptors/server-descriptors... [2] https://gitweb.torproject.org/metrics-lib.git/tree/src/org/torproject/descri... [3] https://gitweb.torproject.org/onionoo.git/tree/src/main/java/org/torproject/... [4] https://gitweb.torproject.org/onionoo.git/tree/src/main/java/org/torproject/...