Verify a draw
Paste a receipt below and this page will recompute the draw from scratch. If the winner recorded on the receipt is not what the seed and the entry list actually produce, it will say so.
The check runs entirely in your browser. Nothing is uploaded, and we never see the receipt.
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What a passing check means
It means two things. First, the winner on the receipt is exactly the result that this seed and this list of entries produce - so the result was not edited afterwards. Second, the SHA-256 of the revealed seed is shown, and you can compare it against the hash the organiser displayed before the draw. If those match, the draw was not quietly re-run until a preferred name came up.
What it does not mean
It does not prove the entry list was complete or honest. If someone left a name off, or added one that should not be there, the maths still checks out - it is just checking out against the wrong list. Verification proves the draw was not tampered with; it cannot prove the inputs were right.