The winner number was: 4661
Hive account@tonyr has picked: 4736, which was the closest guess

• The hashed number was: 75fa0c702905c620608d651d3b4e870e5aec36c772a070280cab238ae3d66380
• The plaintext of this hash is: 4661+FgGvrwvqJ0 , where 4661 is the winning number and +FgGvrwvqJ0 was the salt

This proves that it's provably fair, because I have shown the hash in the giveaway, and now it's revealed. Too bad nobody guessed the number but it was pretty hard, only 65 people commented, and the odds were 1/10,000 later 1/5000 , so no wonder nobody was able to guess it.

Looks like in the future I might have to make it easier to guess, but nontheless Hive account@tonyr was the closest, so let's applaud him for winning 50 SBD!