Provably fair

Verify: TEST

Prize: 0

Pending

The seed is revealed when the host finishes the round, after all draws and rerolls. Until then the committed hash stays public. Finishing the round lets anyone reproduce the recorded picks.

Published inputs

Server seed hash (committed before the draw)

1a7f8206634d7da08356bd7ad404780ca8e57b4226f1aa4f901190bb1d6420d3

Server seed (revealed when the round finishes)

not revealed yet

Entrants (1) — in draw order

0YUUUKINE

The method

1. A random server seed is generated when the giveaway is created, and only its SHA-256 hash is published — so the seed is locked in before anyone knows who will enter.

2. At draw time the ordered entrant list is hashed: entries_hash = SHA256(name₀\nname₁\n…).

3. Each winner index = HMAC_SHA256(seed, entries_hash:nonce), first 13 hex digits → integer → mod entrant count. nonce counts up per winner.

4. The seed is revealed. The check above re-runs all of this in your browser — if it matches, the published seed and entrant snapshot reproduce the recorded picks.