Is Rainbet provably fair?

Yes. Rainbet's Originals games — including Crash, Dice, Mines, Plinko, Keno, and Wheel — use a provably fair system. Players can verify any game result using their server seed, client seed, and nonce.

How do I verify a Rainbet game result?

To verify a Rainbet game result: (1) Go to your bet history. (2) Find the game you want to verify. (3) Click 'Verify' or access the provably fair section. (4) Use the server seed hash, client seed, and nonce to independently calculate the expected result using a SHA-256 or HMAC-SHA256 algorithm.

Which Rainbet games are provably fair?

Rainbet's proprietary Originals games are provably fair: Crash, Dice, Mines, Plinko, Keno, and Wheel. Third-party slots and live casino games use licensed RNG providers but are not individually verifiable using the same system.

What is a server seed in provably fair?

A server seed is a random value generated by the casino before a bet is placed. It is hashed (scrambled) and shown to the player before play, so the casino cannot change it after the outcome is determined.

Rainbet Provably Fair — How It Works

Q: What is provably fair gambling?

Provably fair gambling is a cryptographic system that allows players to independently verify that casino game results were not manipulated. Using blockchain hashing algorithms, both the casino and the player contribute to the random seed, making it mathematically impossible for the casino to predict or alter game outcomes after a bet is placed.

Complete guide to Rainbet's provably fair system. Understand how blockchain-verifiable gambling works and how to verify your own results.

What Is Provably Fair Gambling?

Provably fair gamblinguses cryptographic hashing to let players independently verify that game results are random and unmanipulated. Rainbet's Originals games use this system, creating a transparent and trustless gambling environment where neither the casino nor the player can predict or alter outcomes.

How Provably Fair Works at Rainbet

Rainbet uses a client-server seed system with the following components:

Component	Generated By	Purpose
Server Seed	Rainbet (hashed before play)	Ensures casino cannot change outcome after bet
Client Seed	Player (customizable)	Player's contribution to randomness
Nonce	Auto-incremented per bet	Makes each bet unique
Result Hash	SHA-256/HMAC-SHA256	Combines seeds to produce verifiable outcome

Step-by-Step Verification Process

Before the bet: Rainbet generates a server seed, hashes it with SHA-256, and shows you the hash (not the seed itself).
You place a bet: Your client seed and a nonce are combined with the server seed hash to determine the outcome.
After the bet: Rainbet reveals the unhashed server seed.
Verification: You can independently hash the revealed server seed and confirm it matches the hash shown before the bet — proving the casino could not have changed it.
Outcome check: Using the revealed server seed, your client seed, and the nonce, you can recalculate the exact game outcome and confirm it matches what you received.

Rainbet Provably Fair Games

Game	Type	Typical RTP	Verifiable?
Crash	Multiplier game	99%	✓ Yes
Dice	Number prediction	99%	✓ Yes
Mines	Grid game	99%	✓ Yes
Plinko	Pachinko-style	99%	✓ Yes
Keno	Number draw	97%	✓ Yes
Wheel	Wheel of fortune	97–99%	✓ Yes

Rainbet Referral Code: ORANGIE

250% up to $2,100 for new players

Claim Bonus →

Provably Fair FAQ

Provably fair gambling is a cryptographic system that allows players to independently verify that casino game results were not manipulated. Using blockchain hashing algorithms, both the casino and the player contribute to the random seed, making it mathematically impossible for the casino to predict or alter game outcomes after a bet is placed.

Last updated: June 22, 2026 · Alex Carter