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-v105c4aa5eb68e9c86e3c7d36c951bd2ffabcb0ab056d4435c3d6e823086f76fdad7b76bdf07ab490b39f2a871f2722d43516c902ec12c57becb4960371568467bCheck 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/3e7a942d-6d4c-497d-acdf-0e43dd1bfbcb/draw-proof
Raw proof: draw-proof JSON · How provably fair draws work