Why a Public Seed Matters in an Online Draw
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When someone says they drew something online, what do you actually know? Usually only what they showed you: a screen, a screenshot. Nothing prevents the result from being redone until the desired outcome appeared.
A seed changes that. It is a random value created before the draw, and the algorithm turns that seed, plus the list and the parameters, into a result. Since the process is deterministic, the same inputs always produce the same winners.
Publishing the seed means anyone can redo the math. You do not have to trust whoever ran the draw, or us: run the verification and compare. If the result differs, something is wrong.
One detail matters: the seed must be created before the result is known, and the list must not change afterward. That is why we store the list fingerprint alongside the result. If a name is added or removed, the fingerprint changes and the result no longer checks out.
The seed does not make the draw more random. It makes it checkable by the participants themselves. The difference is between saying it was fair and letting each person confirm it alone.
To see it in practice, draw a number and open the verification on the result link.