I've always wondered, how do you route transactions through Tor? It's been a gnawing question, and I guess I just got around to asking about it.

-proxy= Connect through SOCKS proxy
-socks= Select SOCKS version for -proxy (4 or 5, default: 5)
-onion= Use separate SOCKS5 proxy to reach peers via Tor hidden services (default: -proxy)

TCP : 56ckl5obj37gypcu.onion:50001  does work as of yesterday.