Checking a Rainbet bet yourself, from seed to result
With Rainbet provably fair games you can verify a result rather than take it on trust. Three values fix each round before you bet, and Rainbet explains how to rework any past bet from them.
What does provably fair mean at Rainbet?
Rainbet provably fair describes a system where values set ahead of your bet decide the outcome of a round, and those values can be looked at afterwards. Rainbet says that under it, a result can't be changed once Rainbet knows your stake, and past bets can be checked.
What are the three values?
| Value | Who sets it | What it does |
|---|---|---|
| Client seed | You. You can edit it whenever you like | Puts your own input into every result |
| Server seed | Rainbet. You see it hashed before you bet | Ties Rainbet to a value it can't alter afterwards |
| Nonce | A counter. It begins at 0 and goes up by one with each bet | Gives each bet on the same seed pair its own outcome |
Why is the server seed hashed?
Hashing lets Rainbet commit to a server seed while keeping it hidden. A hash works as a one-way fingerprint: simple to make from the seed, and impossible to turn back into the seed. The fingerprint is shown before you bet, which means the seed behind it is already locked in.
Once the seed is revealed, you can hash it yourself. A fingerprint that matches the one you saw earlier tells you the seed is the one that was in place when you placed the bet.
How do you verify a Rainbet bet?
Rainbet lays out six steps.
- Go to the Fair Play tab on any Original to view the active seeds. The server seed appears hashed.
- Place a bet.
- Rotate the seed pair. Doing so reveals the unhashed server seed behind your past bets.
- Open Bets and click the bet ID.
- Click the Provably Fair link on that bet to see the values that were used.
- Check the result in the Verify tab, or against the game's published algorithm.
A server seed only comes to light after you rotate it. Bets on a seed pair that is still active can't be fully verified yet, and that is by design.
Which games are provably fair?
Rainbet says its 15 Originals are provably fair: Plinko, Dice, Limbo, Keno, Coinflip, Mines, Hilo, Chicken Cross, Tower, Wheel, War, Moles, Rock Paper Scissors, Blackjack and Roulette. Every one has a Fair Play tab on its game page.
| Game type | Provably fair? | What fairness rests on |
|---|---|---|
| Rainbet Originals | Yes | Client seed, hashed server seed and nonce |
| Multiplayer games | Through a different method | EOS blockchain blocks, according to Rainbet |
| Slots and software tables | No | Certified random number generators that independent labs audit, according to Rainbet |
| Live dealer tables | No | Streamed from licensed studios, with live operations audited, according to Rainbet |
How do multiplayer games differ?
According to Rainbet, multiplayer games such as Case Battles and EOS Roulette draw their randomness from EOS blockchain blocks. Rainbet says a block is created in public, so neither a player nor the house can choose it. Rainbet calls this stronger than seed-based fairness.
Should you change your client seed?
Changing your client seed is allowed at any time and does no harm. A new client seed gives you a say in the result that Rainbet couldn't have known when it committed to its server seed.
What can't provably fair tell you?
Provably fair is meant to show that a result wasn't tampered with. It leaves the odds as they are. A game with a 96.00% maximum RTP has the same house edge whether or not you verify every round.
- It shows the result was fixed before you bet.
- It doesn't make a losing run any less likely.
- It doesn't cover slots or live tables.
What does a check look like on Dice?
Picture three bets on Dice with a single seed pair. The first bet has nonce 0, the second nonce 1 and the third nonce 2. All three share the same seeds, and the nonce that changes each time is what gives every bet its own roll.
Rotate the pair, then open any of the three bets from Bets. Its Provably Fair link lists the client seed, the revealed server seed and the nonce used. Put them through the Verify tab, and the roll it produces should be the one you were paid on.
These steps apply to any of the 15 Originals, since each Originals game page carries a Fair Play tab.
Where to try it
Any game on Rainbet Originals will work. Rainbet Dice is an easy first choice, because every result is one number. For why this counts when you're sizing up the site, see is Rainbet legit.
Questions people ask
What is Rainbet provably fair?
It is the system for verifying results on Rainbet Originals. A client seed, a hashed server seed and a nonce, all set before the bet, produce each result.
How do I verify a Rainbet bet?
Go to the Fair Play tab, place a bet and rotate the seed pair. Then open the bet from Bets, click its Provably Fair link and check the result in the Verify tab.
Are Rainbet slots provably fair?
No. Slots run on the studios' certified random number generators, which independent labs audit, according to Rainbet. Only Rainbet Originals are provably fair.
Can I change my client seed on Rainbet?
Yes. You can edit the client seed whenever you want.
Does provably fair improve my odds?
No. It shows that results weren't altered, and each game's house edge is unchanged.
Three values, six steps
Any past bet on a Rainbet Original can be checked.