What’s up, Otaku Bettors!
Last time I covered how RNG determines video roulette results — but when it comes to casino original games, RNG isn’t actually used.
The technology powering casino original games is something even more trustworthy than RNG: “Provably Fair.”
Games using this are 1000% transparent.
RNG is a sketchy system unless a third party is checking it — but with Provably Fair, cheating is literally impossible.
Because players can verify the results themselves!
Pretty impressive, right?!
So this time, I’ll break down exactly how Provably Fair works — the system that determines the results in video roulette and other casino original games.
Provably Fair Is a Result Transparency Engine
With game provider table games, RNG gets checked by third-party auditors — but with Provably Fair, used in crypto casino original games, players can mathematically verify their own results.
Not talking in my sleep.
Completely serious!
Provably Fair has the kind of transparency where any cheating by the casino gets caught immediately.
It’s widely used on transparency-focused platforms, especially crypto casinos.
Provably Fair Generates Results from 3 Components
The Provably Fair system is elegantly designed — results are calculated by combining “three keys (seeds).”
① Server Seed
The Server Seed is a “secret piece of data” prepared in advance by the casino as the source of the game result. Before the game starts, only the hash value — the encrypted version of this seed — is made public.
Think of it like this: “Here’s the data we used to determine the result — but it’s still a secret for now! Instead, take a look at this encrypted box (the hash value). Once the result is in, you can open it up and check the contents!”
For reference, the original seed value is revealed after the game.
Players can then check whether it matches the hash value that was published beforehand.
If it matches, that’s proof there was no fraud or tampering.
② Client Seed
The Client Seed is “another key” that influences the game result — and players can change their Client Seed value freely at any time.
The fact that players control the Client Seed — a required input for calculating the result — means players are actively participating in generating the outcome.
Which means the casino has no way to cheat unilaterally.
③ Nonce
The Nonce is a sequential number that tracks how many times a seed combination has been used.
It increments by 1 every time the player spins.
- 1st spin → Nonce 1
- 2nd spin → Nonce 2
- 3rd spin → Nonce 3
So even with the same Server Seed and Client Seed combination, a different Nonce means a different result every time.
The Nonce ensures a unique result for every single game, even if the player never changes their seed values.
How Is the Result Calculated?
A Provably Fair game result is calculated by feeding all three elements — the Server Seed (the encrypted secret source data), the Client Seed (the player-controlled key), and the Nonce (the current game count) — through a specialized hash function (cryptographic algorithm).
The formula looks like this ↓
Game Result = Hash(Server Seed + Client Seed + Nonce)
This calculation produces a completely random “random number (an unpredictable value)”.
How to Actually Verify Results
Verifying your game results is simple.
After playing, open your game history (transactions).
All the information used to produce the result is listed there.
- Server Seed (the source data behind the pre-game hash value)
- Client Seed
- Nonce
- Hash Result (the actual computed result for this game)
↑ Copy all four of those.
Search online for a tool like a “Provably Fair Verifier” or “Hash Checker.”
Paste the Server Seed, Client Seed, and Nonce into the tool, then click Calculate.
Check whether the “calculated value (random number)” the tool produces matches the “actual computed result (Hash Result)” shown in your game history — down to the last digit.
If they match, you’re fine.
If there’s even the slightest discrepancy, that’s fraud…
Which isn’t going to happen.
RNG vs. Provably Fair
Here’s a clear comparison between the RNG used by game providers and the Provably Fair used by crypto casino original games.
| Category | RNG | Provably Fair |
|---|---|---|
| How Results Are Determined | Auto-generated by PRNG | 3 seeds + hash calculation |
| Fairness Verification | Third-party audit | Player self-verification |
| Fraud Prevention | Depends on operator trust | Tamper-proof by design |
| Player Trust Level | High | Off the charts |
That’s the breakdown.
Side by side, Provably Fair does feel more fair than RNG.
That said, both systems assume no fraud to begin with — so either way, you’re generally fine trusting them.
I play provider games all the time anyway.
If you’re the type who doesn’t fully trust third-party auditors, original games using Provably Fair might be the better call.
And for what it’s worth, original games also tend to have lower House Edge — so there’s a winning-odds benefit too.
RNG games run a House Edge of around 3%–4%, while Provably Fair games typically sit at 1%–2% — on that metric alone, Provably Fair has the edge.