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-v193d66122db5e871100f09934a7625ec71272365431ac87e9d88b61f68b3ae4ef99ad42831a16daa95e064fe731b3f7f7a614842d06250b1c4112a475fbcfa6bfCheck 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/71766823-3afa-4c03-9e02-d23a91ddb6bc/draw-proof
Raw proof: draw-proof JSON · How provably fair draws work