the official ones:
addnode=cat.geekhash.org:9933
addnode=ultimatecoinpool.com:9933
addnode=eu.coinium.org:9933
addnode=us.coinium.org:9933
addnode=teamcatcoin.com:9933
It doesn't help if the 'official' nodes aren't on the same chain...
Geekhash seems to be at 22992 while the other ones are all at 22883, which my wallet also sits at right now.
This really is a mess.