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-v1d76a5bb598328858da4925d0070b4218ff3bae445ea818e351b075f8730146a8e1ac7f7dbfd7252bd14a82113534987b8b85deb054f8d1b7f2ffa86ccd7aa28eCheck 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/e59b4553-b3d5-456e-8460-d2248ca919ee/draw-proof
Raw proof: draw-proof JSON · How provably fair draws work