Mining address will be posted publicly before Wednesday. This will allow transparent monitoring of the hashing rate and block generation.
I suppose before Wednesday means by Tuesday night @ 23:59 the latest. Of course we're not aware of the time zone reference, but roughly by tomorrow night we should have some indication on wether they are hashing or not.
Of course, even if they deliver, sceptics will say that they are just using their Avalon machines... except if they have found enough blocks to prove they are hashing @ high rate.
It means whatever random time is best suited to manipulating the share price in the direction of their choosing.