Guides
Provably Fair, Explained: What It Means and How to Verify a Bet
By the Betmode Team ·
Provably fair means a player can check the outcome of a bet independently, using public information, instead of trusting the casino's word. The term comes from crypto casinos. What exactly can be checked differs from one casino to the next, so it is worth knowing what a given site lets you verify.
What does provably fair mean?
In a traditional online casino the result of a bet is produced on the casino's server and the player sees only the result. Fairness rests on the licence and on independent testing of the games.
A provably fair system adds evidence the player can inspect. Two kinds are common:
| Approach | What the player can check | What it shows |
|---|---|---|
| Committed seeds | The casino publishes a hash of a secret seed before the bet, then reveals the seed afterwards. The player recomputes the result from the seeds. | The outcome was fixed before the bet and was not changed afterwards. |
| On-chain settlement | The stake and the payout are transactions on a public blockchain, each with a block number and a hash. | The bet happened, what it paid, and that the record has not been edited. |
Neither approach changes the odds. A provably fair game still has a house edge; the proof is that the game was played as stated.
What can I verify on Betmode?
- Every bet is a transaction. When you bet, the stake moves into the bankroll contract on Etherlink. When you win, the payout moves out. Both are token transfers with a block number and a hash.
- Any bet can be opened. In Latest Bets on the homepage, or in your own bet history, press Verify on a row to open the transaction in the Etherlink explorer. A new bet shows as confirming until its block settles.
- The bankroll is public. The wallets that back every bet are public addresses, so anyone can confirm the funds are there.
The Help Center covers this in Provable Fairness on Betmode. Betmode's own games are listed under Betmode Originals.
What does provably fair not tell me?
- It does not tell you that you will win. The house edge is the same whether or not a game is verifiable. See What Is RTP?.
- It applies to the games a casino runs itself. Slots and live tables from outside studios are certified by testing labs and run on the studio's servers.
- It does not replace a licence. Check both, as described in Is Betmode Legit?.
FAQ
Is provably fair the same as a licence?
No. A licence is a regulator's permission to operate. Provably fair is evidence about individual bets that a player can check. A trustworthy casino has both.
Can a provably fair game still have a house edge?
Yes. Every casino game has one. Provably fair shows the game was played by its stated rules, not that the rules favour the player.
How do I verify a bet on Betmode?
Open Latest Bets or your bet history and press Verify on the bet. The link opens the bet's transaction on the Etherlink block explorer.
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