COMMIT Before you play, the server locks the board and publishes its SHA-256 fingerprint — it can't be swapped after.
REVEAL When the round ends, the secret behind that fingerprint is revealed to you.
VERIFY Your own device recomputes the math — the ✓ badge on the result screen means it checked out. No trust required.
RAKE Every table shows its exact entry, rake % and paid places before you join.