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-v1a781986ccf5030fd5ad32064c5d661732e3c458abe8270f76d6f2bd4f991e0d7280ffea4a719a851f819a5884c12fd9e8ed0531e94de3980604d47617176c5e3Check 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/35df0f97-3429-439a-a79b-19071bcfbf95/draw-proof
Raw proof: draw-proof JSON · How provably fair draws work