Fingerprint · locked when the raffle was created

27c766cc32619506a883a3d3ee1e6b7d4d8c4a05b35e763ae1372e0143e0071d

Seed

fe17b4d7b4d525e87190454cd0d71f22e55cc60c078eee3d5c85a994a41be09b

Draw steps

draw-1 · picked 18 from 21 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.