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-v13df31772223bf439e18ff235490e22b67ac3ab801de7f24727b191f33dafd6622e8d73b8941d4301aca7d346494cdd0501ccea70346733955d370a168b8a1920Check 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/be94e488-1fa4-421a-8924-a22ef8e2b7c1/draw-proof
Raw proof: draw-proof JSON · How provably fair draws work