Verify your Skin.club roll

Verified: reproduces real results

Recompute any past Skin.club result on your own device using Skin.club's published algorithm. Nothing you paste leaves your browser.

Live verifier

0 network requests

Step 1Where did you play?

Using Skin.club roll: HMAC-SHA512 (inverted key/message) over key = clientSeed-nonce, message = serverSeeddetails

HMAC-SHA512 where the secret key is clientSeed-nonce (dash separator) and the message is the server seed (the reverse of the usual convention, as published by Skin.club). The first 15 hex characters convert to an integer; roll = (integer mod 100,000) + 1, giving [1, 100,000] for case openings.

Where to find your numbers on Skin.club:

Your roll history and seed-change history are available in your account; other players' results are also visible.
The server seed hash (SHA-256) is shown before play.

Source: Skin.club's own fairness page

Step 2Paste your numbers

Server seedThe site's secret number, revealed after your roll (or when you rotate seeds).

Client seedYour number. Find it in the site's fairness settings.

NonceThe roll counter. Copy it from the same screen as your seeds.

Max roll number100,000 for case openings; other mechanics may differ.

Result the site showedoptionalWhat the site said you rolled. We'll compare automatically.

Server seed hashoptionalThe fingerprint shown BEFORE you played. Proves the seed wasn't switched.

Runs entirely on your device via your browser's built-in cryptography. Don't take our word for it: open DevTools → Network, click the button, and watch: zero requests.

Where to find your seeds on Skin.club

1
Your roll history and seed-change history are available in your account; other players' results are also visible.
2
The server seed hash (SHA-256) is shown before play.

What we can check on Skin.club

Per-game status. "Verified" means our implementation reproduced a real, documented result for that game. We never list a game on trust.

Game	Algorithm	Status
Case opening / upgrade	HMAC-SHA512 (inverted key/message)	Verified Verified against a real Skin.club UPGRADE roll (server 1862b99d…, client cce4eed…, nonce 259 -> roll 66,748) from their Check Roll tool, 2026-07-22, which confirms the whole roll engine: inverted HMAC-SHA512, dash separator, first-15-hex slice, +1, salt not in the roll. Case opening uses this identical engine with the same MaxRollNumber (100,000) per Skin.club's published explainer; a real case-opening roll would confirm that mode with live data too.

The honest fine print

A passing check proves a specific outcome came from numbers fixed before you played. It does not prove Skin.club will honour a withdrawal, or say anything about the site beyond this one result. Fair math and a trustworthy business are different things: how we verify and what it means.

More tools: batch-verify a nonce range · check your luck vs the odds · all platforms