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-v1ff2d46f6b4e92059ee24ea14f0121d05e49870ae03967670157d5f9e664aa9021211ad71352cc405cdd4a68f6f3361e0a989de22aa0aa98fd51f724c28c4618bCheck 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/277e75d7-f8e5-4442-b566-81cb9df296ce/draw-proof
Raw proof: draw-proof JSON · How provably fair draws work