Degen Protocol
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Session against the house

Blackjack

ended: idle Play money · 3b40d254f9c14454022daab581b0e8b0

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
    5f187de9e76c85c62509532b8a957ea4d3390de4f40f3ef50a64a2195bd62f12
    Seed
    204cc8ca247f9d4c9cc830972cfe9e5a9b1f06d57a37eba4f93f0b5c5d9f2bd6 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 70,955, Merkle root 8df7024d90c593cc7be3bbdff136f41be351aff838896f05d7a5e380426e8676. Recorded by Degen Protocol; on-chain publication is not available yet. See this batch and its Merkle tree
    Merkle path
    1. f0107ba81f806e073dd63c4adf1da5eabd927fc73b4751756cbfef44cc3ff403
    2. 7a4eb48ddea991e174c1fbe0395a4b397eaf4e6ea58b09d73faeb6e6ed2d087f
    3. de4227e3972f764edb3a8683f2e34d8217b474dc81fd1f8b45cf52ebf611307a
    4. 8bf19ee7c1f323d20cdc0475e180e15720ab3c186423ad02ddd681210c68a26a
    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.