Common currency

Credit

Details
This currency, used by the Interastral Peace Corporation to settle accounts with its customers, is now widely accepted as the hard currency for space travel.
Story
"People run around fighting and trading for numbers in a terminal, but the truly precious cannot be bought."
Source
Calyx (Great Mine)
Calyx: Artisanship Commission
Calyx: The Reverie (Dreamscape)
Mission rewards
Assignment rewards
Embers Exchange