Fingerprint · locked when the raffle was created

98b0a6d57d710a9bba0b6ab5fdacf8385b4c88be3bdacccaab813f96004bc92a

Seed

b3aafa58e9e601695d46c483c7e900a57cf2d8996a4ad064a7f4649dd0717d6f

Draw steps

draw-1 · picked 5 from 18 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.