The block in which the above post is included has a merkle root of e5596fbb4734a0b104f4b29b9b4878b5d8e74978.
To find the winner we:

1. Convert the merkle root into base 10:
   e5596fbb4734a0b104f4b29b9b4878b5d8e74978 = 1309353386032517962459685018541749050685270739320.
2. Compute the residual after dividing by the number of tickets: 1309353386032517962459685018541749050685270739320 mod 524 = 4.
3. This is the winning ticket, held by @curatorbot.

Congratulations!