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-v11a80762f839f87500d84de4f978b77fbf66f594ca107f317953723155132f2522638cc30c1291cc6bff704cce1dfdc977f92ddb1666fbdddfb3803aec2404c9cCheck 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/29e9191f-2b16-4eb0-abfb-5bff81448602/draw-proof
Raw proof: draw-proof JSON · How provably fair draws work