Electronic train tickets, which were relatively recently introduced by Russian Railways, still raise many questions. Sometimes the conductors ask for a ticket form when boarding, sometimes they don't. I would like to be certain, because with air tickets we are used to taking only a passport with us. Do you have the right to demand a printed ticket when boarding a carriage, or is it "kinks on the ground"?
If electronic check-in is completed, then only a passport is required to board domestic flights. However, some service companies that own the paddocks on branded trains scan the barcode on the ticket blank for their own reporting. For example, TransKlassService practiced scanning the ticket code. This is an optional requirement. Now, to confirm the passage, the conductor will ask you to sign on his form.
Many travelers like to have a printed ticket with them to check the departure times and carriage numbers. For this purpose, you can install a mobile application from Russian Railways or a third-party developer. It will allow you to buy a ticket and present the form on the smartphone screen to the conductor. The third-party application "Russian Railways Tickets", available for Android devices, is capable of showing in real time the route of movement and the duration of stops. You can set an alarm to a specific station so as not to oversleep the opportunity to breathe fresh air.
Thus, the Russian Railways boarding pass needs to be printed only for oneself, so as not to forget the carriage number and departure time. It is not needed to board domestic Russian flights. And you can buy a ticket using a smartphone, without using a personal computer and a ticket vending machine at the station.