Fingerprint · locked when the raffle was created

e19c656e5f5f7d44e0f7c49c3fb3736836a03135f07a8cba843584b8d39097dd

Seed

a24ff6495f30fe2dc5d4052bfdee34d8cd978649fc6b42bcb85bc5442a9cd681

Draw steps

draw-1 · picked 20 from 50 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.