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繁體中文What Is Provably Fair?
Provably fair is a method that lets you verify a game's result was not changed after you bet. It is common in crash and other online games. This guide explains the idea in plain English.
- It means a game gives you the tools to verify, after a round, that the result was generated fairly and fixed before your bet rather than altered afterwards.
- It combines a secret server seed with a client seed to make the result, and publishes a hash of the server seed beforehand so it cannot be changed without detection.
- After the round, the revealed server seed is hashed and checked against the earlier fingerprint, then the result is re-computed from the seeds to confirm it matches.
What provably fair means
A provably-fair game gives you the tools to confirm, after a round, that the outcome was generated fairly and was fixed before your bet — not altered to your disadvantage.
Seeds and hashing
The game combines a server seed (kept secret until afterwards) with a client seed (which you can change) to produce the result. Before the round, the server publishes a hash of its seed — a fingerprint that cannot be reversed but can be checked later.
Verifying a result
After the round, the server reveals its seed. You can hash it yourself and confirm it matches the fingerprint shown earlier, then re-compute the result from the seeds. If everything matches, the round was fair.
Why it matters
Provable fairness adds transparency that traditional games handle through licensing and testing instead. It is most common in crash games and similar online titles.
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FAQ
It means a game gives you the tools to verify, after a round, that the result was generated fairly and fixed before your bet rather than altered afterwards.
It combines a secret server seed with a client seed to make the result, and publishes a hash of the server seed beforehand so it cannot be changed without detection.
After the round, the revealed server seed is hashed and checked against the earlier fingerprint, then the result is re-computed from the seeds to confirm it matches.
Last updated: 2026-06-15