Blackjack verifier

Verify every round.

Check Moon's commitment, rebuild the deterministic deck, and replay the recorded actions without sending your seeds anywhere.

Round data

Paste or enter a round

● Local only

Use the Verify in browser button on a finished Discord game, or paste a verifier payload below.

Verifier payload optional shortcut

or enter details manually

Game ID Nonce

Server hash Server seed Client seed

CoinOriginal bet SOLTotal wager SOLPayout SOL

Result Action history one action per line

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Ready to verify

Enter a completed Moon blackjack round to begin.

Proof checks

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Server commitmentSHA-256(server seed) matches the published server hash

Waiting

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Deterministic deckHMAC-SHA256 deck shuffle matches the published seeds and nonce

Waiting

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Round outcomeActions, wagers, result, and payout match the replay

Waiting

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Nothing leaves this page.
The verifier uses browser cryptography. Your server seed, client seed, and game history are not uploaded to Moon.