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-v1b1d42521870f2c3943d29718a542e00abafafce27be99256ca2f413d4ec4e195ec56937718c73c3ddec0dbd412ac704e2b56be49bd6651e8e719ba41a618d4edCheck 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/5a53a9b1-89bc-46bd-b7bb-0eecdb175a80/draw-proof
Raw proof: draw-proof JSON · How provably fair draws work