Provably fair on CSGO.NET: how to verify a roll

A provably-fair system lets you check that the result of a case opening was not changed after you committed.

What provably fair means

"Provably fair" means the outcome of each open is tied to cryptographic values fixed before you commit, so neither the site nor the player can alter it afterwards. The site publishes a hash up front; after the open, the hidden value is revealed and you can recompute the hash to confirm it matches.

How it works in practice

• Before the roll the site fixes a server seed and publishes its hash.
• Your client seed and a nonce are combined with the server seed.
• The combined hash determines the result deterministically.
• Afterwards the server seed is revealed — recompute the hash and check it matches the one shown earlier.

If the pre-published hash matches the value you recompute after the open, the proof holds: the result was fixed in advance and was not manipulated.

What it does not do

Provably fair guarantees the integrity of a single result — it does not give you an edge. The odds stay as shown and the house edge is unchanged. It is a transparency tool, not a way to win.