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-v1aa25e6bf3f69fca1c440a11ef85f75ed34d08f1d11525ae407cece917977c32cd11eb4c3806a62a620e753a734d68785d82175944753a3ebc8ce09beca0a828bCheck 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/31de581f-3e3a-431f-9ca5-17435485a05f/draw-proof
Raw proof: draw-proof JSON · How provably fair draws work