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-v171125feeaffb3d3baeb78b45e5ab65bf5a95141abae78c2e5f0937c61b2b211c0ddc37a9a11534cae025b7972d78cebaf24a61cdd5999028b32440f8cd94f7a5Check 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/0831cc46-df3b-467a-95fc-7584faf474f4/draw-proof
Raw proof: draw-proof JSON · How provably fair draws work