Coin Flip
—
first 32 hash bits mod 2
Coin Flip / Dice / Crash
Open the roll.
Check the proof.
A committed seed can make a roll reproducible after the reveal. This lab shows the exact evidence chain, then draws the line between seed continuity and actual casino fairness.
Commit / Reveal Audit
loading math runtime…
Awaiting a reveal
Run the sample to populate the evidence chain.
01 / commitment
Sealed first
not calculated
02 / roll hash
Bound together
not calculated
03 / outcome
Interpreted
waiting for a run
Dice
—
first 32 hash bits mapped to 0–99.99
Crash
—
capped model at the stated house edge
The audit is idle. A matching commitment will confirm that the revealed server seed is the one that was sealed earlier.
What this cannot prove
This generic model does not attest to Rolly's beta implementation, seed selection, payout table, withdrawal behavior, or live odds. A reproducible result is evidence of continuity, not a complete fairness audit.
Commit first. Reveal later.
SHA-256 is one-way enough for the commitment step: publish the digest before the seed is known to the player, then compare it after reveal. One changed character creates a different digest.
Deterministic is not automatically fair.
Client seed and nonce make a roll reproducible, but the protocol still needs honest seed selection, transparent payout rules, and evidence that the platform honored them.