Fingerprint · locked when the raffle was created

4fa952d2683162fe88deefa715e2c484b0838439f31c570100f662dfd1eadd4c

Seed

15ebc76455a2477af384bde5bf2cd4a5c8b747f742f6e1c8d0c763c746716dc7

Draw steps

draw-1 · picked 20 from 30 entries

Check it yourself

This runs the whole draw again in your browser and compares the result. Nothing is sent anywhere.

How it works

When the raffle was created we picked a secret 32 byte seed and published its sha256 fingerprint above. Changing the seed later would change the fingerprint.

Each draw step sorts the entries by id, writes each one as id:tickets, and hashes the list. Random numbers come from sha256(seed:list hash:step label:counter), 52 bits at a time, and a pick lands on an entry in proportion to its tickets.

Once winners are announced the seed is published. The button above checks the fingerprint and re-runs every step. Rerolls are their own steps: the host chooses who to replace, the seed chooses who replaces them.