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-v199ccbd2653fe77686388c0abcf9abc74e0cbd2f3d504756f6a82ce28d4f7d06ef9a6208a9b58f1a888fd28b470e0b86441f7f5ad00d55eaa197c805aa63ef3d1Check 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/869a4453-46ed-4f6c-bb14-0448255bad8d/draw-proof
Raw proof: draw-proof JSON · How provably fair draws work