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-v13f36b88c989325d4e201c59c2cda6dd15e92e82cf8505c2848c4140698dfb8940248346f07d927bd46184727f5114064073c980ddad307953ac797ba1c2a9e34Check 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/55bbe360-42f7-47bd-b13f-043b729e05fb/draw-proof
Raw proof: draw-proof JSON · How provably fair draws work