A draw you can verify

1. 1

   Before the game, the fingerprint

   We choose a secret key and publish its SHA-256 fingerprint on the game page. The fingerprint does not reveal the key, but it locks it: changing it later would be visible to everyone.

2. 2

   After the game, the reveal

   When the game closes, we publish the key. The winning number is calculated from the key and the game identifier, within the range stated in the rules.

3. 3

   Anyone can check

   You check that the key matches the fingerprint published at the start, then you recalculate the number. The calculation runs in your browser, nothing is sent to us.