Fingerprint · locked when the raffle was created

a0452368e9389ca97968f8b794f8b3a2cd3182c7475d8262e9bf8905e8dacf9d

Seed

3f2dbad065aaa044945113fccb43456f3d50011819f887798ecca3823c4e4266

Draw steps

draw-1 · picked 10 from 35 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.