Fingerprint · locked when the raffle was created

0539c0024b80b93ff1a3d8cc828baac8c1c4aacd47384f6b87185889ce9bfcef

Seed

b1165b9b58bc9abd196a89db123f6587fcf6e3a9dba4f16cf4b564afc9772af6

Draw steps

draw-1 · picked 5 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.