Provably fair

Provable Fairness — Upgrader

In Upgrader mode, the platform uses a Provably Fair system that allows every user to independently verify that the upgrade result is fair and has not been altered.

The upgrade result is generated deterministically based on a pair of seeds (Client Seed and Server Seed) and the ranges selected by the user. If the input data is identical, the outcome will always be the same — making any upgrade fully reproducible and verifiable.

Server Seed

A Server Seed is generated by the system for each upgrade.

Only the hashed Server Seed is shown to the user before the upgrade.

This ensures that:

• the platform cannot change it afterward;

• the user cannot predict the result.

Once the Server Seed is rotated, the previous seed remains accessible for verifying past upgrades.

Client Seed

Client Seed is the client-side seed used in calculations.

• Users may change the Client Seed manually in account settings.

• Changing the Client Seed produces a new sequence of upgrade outcomes.

• The initial Client Seed is generated automatically.

The result always depends on the combination:
Client Seed + Server Seed

Ranges

Ranges define which ticket values are winning.

• The player sets min range and max range before each upgrade.

• The difference between them determines the success chance.

Logic:

• If min < max → the user wins if the ticket is between min and max.

• If min > max (wrapped range) → the user wins if the ticket is:

  between min and the maximum scale limit, or

  between the minimum scale limit and max.

Terms

• Client Seed — player's seed.

• Server Seed — system-generated seed.

• Server Hashed Seed — hashed Server Seed shown before upgrade.

• Ranges — winning intervals.

Rolling (Upgrade Result Generation)

The upgrade result is calculated as follows:

• The Client Seed and Server Seed values are taken.

• The values are combined into a single string:

  $seed = $client_seed . $server_seed;

• The resulting value is used to initialize the random number generator:

  mt_srand(crc32($seed));

• A ticket is generated:

  $ticket = mt_rand(1, 1000000) / 10000;

  Raw value: from 1 to 1,000,000

  Final value: from 0.0001 to 100.0000

• The generated value is then checked to determine whether it falls within the winning range.

  $seed = $client_seed . $server_seed;

  mt_srand(crc32($seed));

  $ticket = mt_rand(1, 1000000) / 10000;

If the Client Seed and Server Seed remain the same, the result will always be identical.

PHP Verification Code

Where to Run the Code

You can run this PHP script in any convenient way:

Locally

• Install PHP on your computer or server.

• Create a file, for example: upgrader_check.php.

• Insert the code into it and run the command:

  php upgrader_check.php

Online:

• https://3v4l.org/

• https://onlinephp.io/

• https://www.w3schools.com/php/php_compiler.asp

• https://onecompiler.com/php

How to Verify an Upgrade

• Open the Upgrader game history.

• Copy the Client Seed and Server Seed values.

• Insert them into the PHP code.

• Run the script.

• Compare the generated ticket with the upgrade result.

If the values match, the upgrade was calculated fairly and without any interference.