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-v19b0dd0be6c6307b55dfe1f901348876e4264141b941b7281381716b2d3e8b4dc911294c4e03b1c8889bdb422a0392f920010eeec2b1fbccb64669a647fb13284Check 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/543f688f-5e0e-4536-85bc-91d75397e2da/draw-proof
Raw proof: draw-proof JSON · How provably fair draws work