Provably Fair in Crypto Casinos: More Transparency or Misleading Security?

Provably Fair, a method based on cryptographic technology, promises players in online casinos the mathematical verifiability of game outcomes. This system aims to ensure that a game result has not been manipulated after the bet was placed. Especially in pure crypto casinos, this transparency is an important building block, as, unlike regulated platforms, they often cannot rely on the logo of a supervisory authority as a signal of trust. The method is gaining popularity but is not yet used by all online casinos. Critics see it as a significant step towards building trust but at the same time warn against a false sense of security. It leaves gaps in comprehensive player protection. The primary focus is on the verifiable fairness of the individual game result, not on the general trustworthiness of a provider. This is a crucial distinction. A platform can be provably fair but still operate unlicensed and disregard important player protection provisions. This requires players to exercise extreme caution and meticulously check providers, even when a form of technical verification exists. Players still need to be aware of the overall trustworthiness of the operator.

Numbers and facts

The principle of Provably Fair is based on cryptographic hash algorithms, often SHA-256. The provider generates a secret server seed before a game round and creates a cryptographic hash of it. This hash is shared with players in advance. After the game ends, the original server seed is revealed. Players can then run the server seed through the same hashing algorithm themselves. If the two hash values match, it is proven that the provider did not change the seed during the game round.

Provably Fair is primarily used in crypto-first casinos, especially in games like Crash, Dice, Blackjack, and Roulette. Well-known examples include BGaming and Spribe's Aviator. Aviator alone counts over 77 million active monthly players worldwide, accounting for over 90% of the global crash game market. "Stake Originals" from the crypto casino Stake also use this technology, contributing to the platform's estimated over 100 million monthly visits.

Background

The technology aims to address the question of fair card shuffling or coin tosses in the online environment. While Random Number Generator (RNG) certification provides third-party verification of randomness over a large sample size by independent testing laboratories such as eCOGRA or iTech Labs and is mandatory for UKGC-licensed casinos, Provably Fair allows players to verify an isolated game round themselves. This self-verification is a strong trust feature in a market segment that often operates without government regulation. Moshe Adir, founder of Vegas Kings, explains the rapid spread of provably fair games:

"Crypto operators needed a trust story and couldn't lean on a regulator's logo, so they built one out of cryptography instead. Players got tired of being told to trust and were handed a tool that let them check. And once one operator put a verify button in the interface, everyone in that space had to, because the absence of it starts to look like an answer." - Moshe Adir, Founder of Vegas Kings

Adir, however, warns against oversimplification. He emphasizes that Provably Fair only concerns the fairness of a single round's game outcome. "It says nothing about the house edge, nothing about whether you get paid, nothing about what happens when your account gets frozen," Adir states. He points out that for nearly thirty years, the industry's real pain has rarely been rigged games, but "everything that happens after you win." This underscores the need for comprehensive regulation that goes beyond mere game mechanics. The new FairGambling platform aims to bring transparency to the crypto market. It offers not only Provably Fair verification tools but also extensive analysis of crypto casinos, including financial transparency and license details. According to its own statements, it tracks over $45 billion of the more than $80 billion in crypto casino deposit volume from last year in real-time.

Why it matters for German players

For German players, it is crucial to understand that Provably Fair technology does not replace official regulation. The German Interstate Treaty on Gambling 2021 (GlüStV 2021) sets strict rules for online gambling that go far beyond the fairness of individual game rounds. Casinos with a GGL license (Gemeinsame Glücksspielbehörde der Länder) are bound by these regulations. These include a stake limit of 1 euro per spin for slot machines, a monthly deposit limit of 1,000 euros, which is monitored by the central LUGAS system, and comprehensive measures for player protection and addiction prevention. Platforms that rely exclusively on Provably Fair often do not have a German license. Consequently, players on such platforms are not protected by LUGAS nor do they benefit from German player protection measures. The payout of winnings or the freezing of accounts also carries an increased risk with unlicensed providers. There is a danger that a crypto casino, even if it uses Provably Fair, may not pay out winnings or employ questionable bonus terms.

What it means for GGL-licensed casinos

For GGL-licensed casinos, Provably Fair currently plays a minor role. They are already subject to strict RNG certifications and continuous audits by independent laboratories. Their fairness is guaranteed by state regulations and technical audits. The introduction of Provably Fair systems would primarily offer them an additional marketing advantage, as it could further strengthen player trust. However, such systems would have to be compatible with the existing regulations of the GlüStV 2021. The GGL's focus is on comprehensive player protection, licensing, and combating illegal gambling. Provably Fair technology alone does not guarantee these comprehensive protection mechanisms. It remains to be seen whether the popularity of this technology in crypto casinos will eventually lead to broader acceptance or even partial integration into regulated markets. Currently, however, it is not a substitute for a state license and the associated strict requirements.