Fingerprint · locked when the raffle was created

a712605608940cf7dc38e93ff98038bee3e00ac68e12a15136333405ea65f3d5

Seed

f810df84ea7ad995188f70aa1943ca87d747daa3d2014de1b58441221025b2c9

Draw steps

draw-1 · picked 3 from 30 entries

reroll-1 · host replaced 3 winner(s), the seed picked 3 from 27 remaining

reroll-2 · host replaced 3 winner(s), the seed picked 3 from 27 remaining

reroll-3 · host replaced 3 winner(s), the seed picked 3 from 27 remaining

reroll-4 · host replaced 3 winner(s), the seed picked 3 from 27 remaining

reroll-5 · host replaced 3 winner(s), the seed picked 3 from 27 remaining

reroll-6 · host replaced 3 winner(s), the seed picked 3 from 27 remaining

reroll-7 · host replaced 3 winner(s), the seed picked 3 from 27 remaining

reroll-8 · host replaced 3 winner(s), the seed picked 3 from 27 remaining

reroll-9 · host replaced 1 winner(s), the seed picked 1 from 27 remaining

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.