Fingerprint · locked when the raffle was created

d34d3c5805bb25e8fa321f26660fa87dbd146cd01fe618d1c447fd8d280ffffe

Seed

6b79d54a6608a12a70e9037b5794f7d694ad99d959d6b88040940268b4b52453

Draw steps

draw-1 · picked 20 from 25 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.