When you play HEAD or TAIL, our system show the winning face BEFORE you begin to play, and displays the result on the page in an encrypted way, called "Next Encrypted Result", for example 135d26da23de65bb851d8bb7774d465a

For each game we generate a randomized key, of 16 characters long, for example 0120118bad7f6d0d, then we organize the winning face and the key like this: HEAD0120118bad7f6d0d or TAIL0120118bad7f6d0d and we calculate the MD5 hash of this string. In our example, the MD5 hash of TAIL0120118bad7f6d0d is 135d26da23de65bb851d8bb7774d465a, so the results of the game must be TAIL.

MD5 is a strong encryption algorithm that cannot be broken today except BRUTE FORCE way and where each MD5 string matches with one unique non encrypted string. Here is MD5 Encrypt Tool.

After you flip the coin, we disclose the winning face, the key with full MD5 string, and you can verify that their MD5 hash exactly match with the data that was published BEFORE you played.