Fingerprint · locked when the raffle was created

2633114817a5a3851fe16dd326db053a3dec1f763a37044321a219a307320c93

Seed

c0e4463ff3edf2b49043d29f4ef5c310381c7ff15553085ae0e2ff0c3d2c4f5e

Draw steps

draw-1 · picked 7 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.