PROVABLY FAIR

Verify a draw

Every result can be recomputed from values we publish. This page does the maths in your browser — nothing is sent to us, so you are checking the result rather than asking us whether it was right.

How it works

  1. Before entries opened we published a commit hash, which is sha256(seed). Paste the seed below and the tool confirms it produces that same hash — proving we didn't swap the seed once we could see who had entered.
  2. After entries closed we recorded a drand beacon, a public random value produced on a fixed schedule by a network we don't control.
  3. We published the entries hash, which pins the exact entry list used.
  4. The winning ticket is sha256(seed : beacon : entriesHash), taking the first 12 hex digits modulo the total number of entries.

The values for each finished draw are shown on that giveaway's result page.

Recompute it