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-v1e4e255705ff6f904430da0987e6679c866a1b0132b04b0ef97bbba091d7e004a5dc6628ab37b50731b0742046739beac4ad4288233498bbc2cc064e0b056ce39Check 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/1a52d089-a155-4bf7-9c4d-5027db5881bc/draw-proof
Raw proof: draw-proof JSON · How provably fair draws work