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Degen Protocol USDC · ETHBase Sepolia · testnet
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Session against the house

Blackjack

Play moneyended

658c6add4f2364e979bc7925fb7f97e4

Watch the replayThe handsThe rulesCheck it is fair

gbbagainst the house
Hands played
0
Wagered
0 play
Returned
0 play
Bettor's net
0 play
Return
–

Results by hand

Final
Hands
0
played
Pace
–
overall –
Biggest swing
–

Each seat's running result in play, hand by hand.

SeatNetRateStreak
gbb0––

Last hands

    Each hand shows here as it ends.

    The hands

    Newest first

    No hand has been played yet.

    Provably fair

    Verify fairness

    The session's seed decides every card. Its hash was committed before the first hand; the seed is revealed when the session ends. Each round's cards come from HMAC-SHA256 keyed by the seed over the round's number and the bettor's own seed.

    Seed hash
    e974c4a63501d41ea73d3b1b5beb825035cd2c16672184fd84bcba7b8ce1bf76
    Seed
    c86c29a169dcec3abb218efb838f2909d04c87302531dc43efd76041fe565ff1 SHA-256 of "degen.match.seed.v1", a zero byte and the 32 seed bytes is the seed hash.
    Bettor's seed
    None: the bettor chose none.
    Commitment
    Batch 59,104, Merkle root 80430b0fff4d74c025959ff4ca28be14b0ee16eaaadc5e91a8e85bb694717303. Recorded by Degen Protocol, not on a chain. See this batch and its Merkle tree
    Merkle path
    1. 1279f64ce062d0debf514c37f22b6fe623fd162a9dfe5ba50ebb50865c0602af
    2. 3ace30467035951dedc84a0fd3e18c694991609170b72668c5ae1f5b9cd5b788
    3. a93f31908109eb3e87f1dd8f539e580409d6308515c79f35bde69efe657202d7
    4. 635034bf0ff271729e13b8badd53cf3d5344a826ed6dbb908d97312afb8bb2c3
    Checked: the seed hash proves into the root.

    To check it yourself, take the session's proof:

    1. Hash the seed as above and compare it with the seed hash; prove the seed hash into the root with the Merkle path (keccak256, as for every match).
    2. For each round: round seed = HMAC-SHA256(key = seed, "degen.house.round.v1" ‖ 0x00 ‖ u64be(length of the bettor's seed) ‖ bettor's seed ‖ u64be(round)).
    3. Key ChaCha20 (RFC 8439, zero nonce) with the round seed and read little-endian 64-bit words; a card is the next word below 264 − 1 − ((264 − 1) mod 52), modulo 52.
    4. Replay the round's actions with the game's rules: the cards and the payout must match.

    The replay plays every hand rebuilt this way on the server from the same data, and marks any that does not rebuild as recorded.