Raffle…
When this raffle was created, Tessera locked a secret seed and published only its fingerprint (sha256). After the winners are public the seed is revealed. If the seed matches the fingerprint and re-running the draw gives the same winners, nobody changed the result.
tessera-cr-v197e783c38cad27c02fc27ee5ebbfac5198ccd62ae97838160affb8d40a220ca5028f91bb765819b0a8791b83d90334e47397b104d0fe430df99a44509722cae7Check the seed in your browser: we hash the revealed seed with SHA-256 and compare it with the fingerprint published before the draw.
The open-source checker re-computes the seed fingerprint, the entry pool and the winner order from the public proof. It needs only Python 3.
git clone https://github.com/Hugg1337/raffle-platform cd raffle-platform python3 backend/scripts/verify_draw.py https://api.tesserapp.org/raffles/4c3a7e76-ca7a-4dd8-8977-d605194956ac/draw-proof
Raw proof: draw-proof JSON · How provably fair draws work