Introduction
Players can use blockchain technology to verify the fairness of their online slot game through provably fair slots. This offers a solution to concerns about fairness in this popular form of online gambling.
Provably fair gaming allows players to verify the fairness of online casino games. A special code, called the provably fair algorithm, generates an encrypted key. Therefore, with the game’s results and sends it to the player. The player can use this key to verify the accuracy of the game after their session.
How Provably Fair Gaming Works
To understand how provably fair gaming works, consider that you are holding a dice in your hand and shaking it. The server produces a set of data in a secure cryptographic way, which is called the hash. The hand represents this hash.
- You hold a dice in your hand with an unknown value that will be revealed when you throw it on the table.
- The server hash (your hand) already knows the value of the dice, called the server seed.
- When the game ends, you will open your hand and reveal the server seed.
The result of the dice roll, called the server seed, can range from 1 to 6 like a regular dice. In provably fair gaming, this result is referred to as the client seed. After the hand is removed, you can view the server seed and, therefore, the value of the dice. Once you finish rolling the dice or playing the game, you can verify if the game was fair.
For example, by checking that the server hash matches the server seed. There are specific tools that can help you use the provably fair feature of a casino to calculate fairness, so you don’t have to do it completely manually.
The most popular tool is a SHA256 calculator.
- To use it, you simply copy the server seed from the casino into the field called DATA and then hit the CALCULATE SHA256 HASH button.
- If the hash displayed is the same as the one provided by the casino, the game has been provably fair.
What are Provably Fair Slots
Provably fair slots are online slot games that allow players to personally verify the fairness of the game. This is achieved through the use of a server seed and a SHA256 calculator. Players can copy the server seed provided by the casino into the calculator and follow the instructions to determine if the game was fair. If the two hashes match, the game was fair.
Pros of Provably Fair Slots
Provably fair slots have several benefits compared to regular slots:
- They ensure that the operator cannot alter the results.
- They guarantee that the casino cannot “steal” your money.
- They provide privacy because they operate on the anonymous blockchain platform.
- They offer faster banking because they use cryptocurrencies that can be quickly processed and result in faster withdrawal times.
- They offer transparency because they operate on the independent blockchain platform where the operators cannot make decisions alone.

Full Transparency and Privacy
No other party involvement
No Third-Party Involvement – as stated above, there’s no need for a third-party governing body to do the verifications for you. All you have to do is to personally enter the data into a calculator and see if everything is in order.
Transparency
Verifiable Gaming – the thing that makes provably fair so amazing is simply the possibility of you being able to verify the outcome of each game 100% free from any other third party. This is the most important advantage the slots have in comparison to a regular site.
RTP is higher
RTP – with regular casinos, slots have a return-to-player rate of about 96%. With provably fair slots, the RTP rate is extremely high, set usually at between 99% and 99.5% of the money the players are spending on playing.
The main benefit of provably fair slots is the ability for players to verify the fairness of the game on their own, without the need for a third party.
- This adds an extra layer of trust for players who may have concerns about the fairness of traditional online slots.
- Provably fair slots also eliminate the need for a governing body to verify the fairness of the game, which can save time and resources.

Drawbacks of Provably Fair Slots
One major drawback of provably fair slot is that they are typically only available on websites that require the use of cryptocurrencies for banking. This may be a hurdle for players who are not familiar with cryptocurrencies or do not want to use them for online gaming.
Crypto-friendly
You can only play provably fair slots with cryptocurrencies. If you are new to cryptocurrency, this may be confusing, but it is usually not an issue.
Hackable
Still hackable – although provably fair slots are 100% fair, as they’re verifiable, this does not mean a certain person from the casino you’re playing on can’t rigg them in some way. Hacks are common everywhere, even on the secure distributed ledger of a blockchain. Still, the slots that use provably fair technologies are way more secure than regular ones.
Views
Aspects – provably fair slots are completely fair, but they lack the looks. One you go to a regular casino and look for the slots, you can find them in an instant thanks to the many hours and money that developers have put into creating them as visually powerful as possible. You won’t find such a level of dedication visually in provably fair slots. Not so far, at least.
Provably Fair Casinos
We’ve compiled a list of a best online casinos that offer provably fair casino games and full transparency.
Provably Fair Slots, a Conclusion
Provably fair slots offer a solution to concerns about the fairness of online casino games. By allowing players to verify the results of their game, these slots offer a level of transparency and accountability that is not present in traditional online slots. While they may require the use of cryptocurrencies for banking, the benefits of verifiable gaming and no involvement from third parties make provably fair slots a valuable option for players.