Cryptographic Trust — How Draw Verification Works

Each draw uses a random 256-bit seed; the result shows the seed and SHA-256 hashes (also on the PDF certificate). Automatic draws get a public result page, and the hash can be checked at /verificar to confirm the published result was not edited afterwards.

How verification works

1. Step 1 — The seed. When the draw runs, the browser generates a random 256-bit seed.
2. Step 2 — The draw. The winner order is derived from that seed. The same seed and the same participant list give the same result.
3. Step 3 — The record. The result shows the seed, SHA-256(seed) and the SHA-256 hash of the winner list. The PDF certificate carries the hash.
4. Step 4 — Checking. Automatic draws get a public result page. Paste the hash at /verificar to confirm the published result was not edited afterwards. The participant list is not published, so outsiders cannot re-run the draw.

Recent public results

Pulled from the public result pages of recent automatic draws. Open a result page to see its seed and hashes.

View result page: https://pickawin.app/w/muysdacwaq

Why this matters

A screenshot of a winner is easy to fake. Here every result carries its seed and SHA-256 hashes, and the published result of an automatic draw can be checked at /verificar: an edited result would no longer match its hash.

Check a result hash at /verificar.