How do you verify a Rainbet bet afterwards?
With provably fair, a round's outcome is locked in before you place the bet and can be checked once the round is over. Rainbet states that it covers the seed-based Originals, and it is the most verifiable claim the site makes.
Three inputs behind every result
| Input | Who sets it |
|---|---|
| Client seed | Chosen by you |
| Server seed | Rainbet sets it and shows it hashed before you play |
| Nonce | A counter that goes up with every bet |
What the hash does
Before you bet, the server seed is displayed only as a hash. Nobody can work backwards from a hash, so it reveals nothing about the outcome, yet it ties the operator to one fixed value. Once the seed is revealed, it has to produce the same hash you saw earlier.
How to check an earlier bet
- Rotate the seed pair to reveal the previous server seed.
- Check that the revealed seed produces the hash displayed before play.
- Put the client seed, server seed and nonce back through the verification tool.
- The result it gives has to equal the one you received.
Where it stops
Rainbet states that slots and live tables are not provably fair and rely on independent laboratory audits instead. Only the Rainbet Originals can be checked in this way.
Frequently asked questions
What is provably fair at Rainbet?
Rainbet states that a round's result is fixed before you bet, and that the seed pair and nonce let you check it afterwards.
How can I verify a Rainbet bet?
Rotate the seed pair to see the earlier server seed, check that it produces the hash shown before, then put the seeds and nonce through the verification tool again.
Are Rainbet slots provably fair?
No. Rainbet states that slots and live tables depend on independent audits of the provider's random number generator.
Can a result change after I place a bet on Rainbet?
Rainbet states not on a seed-based Original: the server seed is fixed as a hash before play, and it has to match once revealed.
Fix first, reveal later
The hash is what allows a check.