At its core, Provably Fair is a cryptographic system designed to ensure transparency and trust in online gaming, particularly within crypto casinos. It achieves this by allowing players to independently verify the fairness of every game outcome. Before a game round begins, the casino generates a seed (a random string of characters) and hashes it, presenting this hashed version to the player. The player then provides their own client seed. When the game concludes, the casino reveals its original server seed. Combining the server seed, client seed, and a nonce (a number incrementing with each round), a unique outcome is generated using a publicly verifiable algorithm. This entire process ensures that neither the casino nor the player can manipulate the result once the hashes are exchanged, guaranteeing a truly random and unchangeable outcome.

When evaluating a crypto casino's Provably Fair implementation, several key elements are crucial to look for. Firstly, ensure the casino provides a clear and accessible explanation of their algorithm, ideally with a link to a third-party verification tool or an open-source code library. Secondly, check for the ability to input and change your client seed before each game. This empowers you to influence the input of the random number generator, further solidifying your control. Lastly, and perhaps most importantly, verify that the casino openly displays the

• server seed hash before the game,
• the server seed after the game,
• your client seed, and
• the nonce