I'm pretty sure I got the real thing, but they are still working on the trial unblinding procedure with the regulator.
They want to keep the trial running as long as possible to get longer-term data (understandable) but it is also potentially unethical to not tell someone if they got a placebo if they are at-risk and a known-good vaccine is otherwise available. I'm in the UK where they are already vaccinating thousands of people everyday with the Pfizer one, so I expect them to figure out the unblinding details very shortly.