What does 'provably fair' mean in the Aviator game?

Provably fair means that each game round's outcome can be independently verified by the player using cryptographic methods. The system uses SHA-256 hashing to ensure neither the operator nor the player can predict or manipulate the result before the round begins.

Can the casino change the outcome after I place my bet?

No. The server seed is hashed and committed before the round starts. Any change to the server seed would produce a different hash, which would not match the committed hash. This makes post-bet manipulation mathematically impossible.

What is a SHA-256 hash?

SHA-256 (Secure Hash Algorithm 256-bit) is a one-way cryptographic function that converts any input into a fixed 64-character hexadecimal string. It is computationally infeasible to reverse-engineer the original input from the hash, making it ideal for provably fair systems.

How are server seeds and client seeds used?

The server generates a random seed and hashes it before the round. The client (player's browser) contributes its own seed. Both seeds are combined using a mathematical formula to produce the crash multiplier. After the round, the original server seed is revealed for verification.

Can third-party tools verify Aviator rounds?

Yes. Since the verification process uses standard SHA-256 hashing, any SHA-256 calculator or verification tool can be used to check the results. You don't need to trust the game's built-in verifier; any independent tool will produce the same result.

Trust & Verification

Provably Fair: How to Verify Aviator Game Results

Every Aviator game round can be independently verified using cryptographic hash technology. Learn how the system works and how to verify results yourself.

By Dr. Marcus Chen, Cryptography & Security | Updated March 9, 2026

How does the Aviator provably fair system work?

The Aviator game uses SHA-256 cryptographic hashing. Before each round, the server creates a seed, hashes it, and shows the hash publicly. After the round, the original seed is revealed. Players can verify the hash matches, proving the outcome was predetermined and not manipulated.

How the Cryptographic System Works

Server Seed

Generated and hashed before each round. The hash is publicly visible.

SHA-256 Hash

One-way function combines seeds to produce the crash multiplier.

Client Seed

Generated by your browser, ensuring the server cannot control the outcome alone.

How to Verify an Aviator Round

Access the Game History

Open the Aviator game and navigate to the round history section. Each completed round has a verification option.

Note the Server Seed Hash

Before the round, the server provides a hashed version of its seed. This hash is publicly visible and cannot be altered after the round begins.

Collect the Client Seed

Your browser generates a client seed. Combined with the server seed, these two values determine the round's outcome.

Verify After the Round

After the round ends, the unhashed server seed is revealed. Use a SHA-256 calculator to verify that hashing the revealed seed produces the same hash shown before the round.

Confirm the Result

If the hashes match, the round was fair. The crash point is mathematically derived from the combined seeds and cannot have been manipulated.

SHA-256 Verification Example

Server Seed (Revealed After Round)

a1b2c3d4e5f6789012345678abcdef

SHA-256 Hash Function

Hash (Shown Before Round)

e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855

If hashing the revealed server seed produces the same hash that was shown before the round, the game result was predetermined and fair.

Key Cryptographic Concepts

One-Way Function

SHA-256 can only be computed forward. Given a hash, it is computationally impossible to determine the original input.

Seed Combination

The server seed and client seed are combined, ensuring no single party controls the outcome.

Commitment Scheme

The server commits to the hash before the round, making post-commitment changes detectable.

Open Verification

Standard SHA-256 tools can verify results. No proprietary software is needed.