Fingerprint · locked when the raffle was created

fdfdcdbc7dfb2bfa978d5144c6ba014addef5f07a0d68581a649edca9141fd7f

Seed

f039273e84a23ac16f57d8edb24a654ab94d3a9069dbc5d56e41166eb428edcc

Draw steps

draw-1 · picked 20 from 34 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.