Fingerprint · locked when the raffle was created

bb86ac9d0ca264f2cda136632452d08cc6c010f2dcbbc05606782ef4e40c0152

Seed

2ce3c32c4c30f5c79cdf2d86c305e5f429462eeff9d751825543b9c570b53fd4

Draw steps

draw-1 · picked 10 from 17 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.