How to make PHDays broadcast via rtmp?

Question

RTMP

Good day.
On May 21-22, the PHDays forum is being held, broadcast to the network is carried out by DO. It is known that DO gives rtmp streams, and the organizers of PHD provided links to rtmp streams.
Actually, the question is: how to pick up, what configs to use to remove these streams? Preferably using nginx-rtmp-module.
Using pull rtmp://x.x.x.x/имя_потока;threads are not accepted.
Tried using rtmpdumphelper from Win. Got keys for a specific thread, but using those keys also failed.
Who has experience in rtmp broadcasting? Help me please =)