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Degen Protocol
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Session against the house

Blackjack

ended Play money · 20a8329d8e6dc797ddfc617c5dd3cb84

Watch the replayThe handsThe rulesCheck it is fair

gbbagainst the house
Hands played
200
Wagered
2,250 play
Returned
2,035 play
Bettor's net
-215 play
Return
90.44%

Results by hand

Final
Hands
200
played
Pace
19.6/min
overall 19.5/min
Biggest swing
+40
Seat 1 · hand 12

Each seat's running result in play, hand by hand; the dashed line marks the biggest swing.

SeatNetRateStreak
gbb-215-107.5 play/100lost 4

Last hands

  1. 200Even0
  2. 199Even0
  3. 198Even0
  4. 197Even0
  5. 196Seat 1+15
  6. 195Seat 1+10
  7. 194Even0
  8. 193Even0
  9. 192Seat 1+10
  10. 191Seat 1+10
  11. 190Seat 1+10
  12. 189Even0

The hands

Newest first
#BetDealerHandsPaidChecked
100106♣7♣5♦ 187♣6♠ 1300× the bet
9910K♥A♥ 216♣9♣ 1500× the bet
98102♠2♦2♣K♣9♥ 252♥A♠4♣K♣ 17202× the bet
97105♦3♠8♣3♦ 19J♣3♥ 1300× the bet
9610J♣Q♥ 2010♦5♠ 15 surrendered50.5× the bet
9510Q♥2♦ 12J♦A♠ 21 blackjack252.5945× the bet
941010♣8♠ 188♥7♥ 15 surrendered50.5× the bet
9310K♥7♣ 178♣J♦ 18202× the bet
9210A♦Q♣ 215♦2♣ 700× the bet
91109♠5♠ 148♦5♦2♥Q♦ 25 bust00× the bet
90103♦10♣A♥J♥ 247♠6♣ 137♦6♥ 13404× the bet
8910J♦6♣Q♣ 26K♥K♣ 20202× the bet
88106♣5♠9♦ 2010♣Q♣ 20101× the bet
87106♦5♦10♣ 218♠4♠ 1200× the bet
86103♥5♥8♣A♠ 177♥2♠J♣ 19 doubled404× the bet
85108♠10♣ 186♥10♣J♦ 26 bust00× the bet
84108♠K♣ 188♦K♦ 18101× the bet
8310K♥7♦ 174♦3♥K♦ 17101× the bet
82106♥4♣9♣ 197♦6♥ 1300× the bet
81105♥6♠2♠J♣ 238♦4♠ 128♣9♣ 17404× the bet
8010K♠Q♣ 204♣10♣2♠8♠ 24 bust00× the bet
7910K♥J♦ 205♦8♣Q♣ 23 bust00× the bet
7810J♦10♦ 20J♥10♣ 20101× the bet
7710Q♦Q♣ 20A♦6♠ 17A♣J♠ 21202× the bet
76108♣10♥ 183♦6♥4♣9♣ 22 bust00× the bet
7510K♣K♠ 206♦K♣ 16 surrendered50.5× the bet
74104♥6♠6♠7♥ 232♠Q♦ 12202× the bet
73104♥9♣2♣3♣ 1810♠K♣ 20202× the bet
7210A♣9♥ 207♦8♣K♦ 25 bust00× the bet
71106♥Q♣6♦ 22K♣Q♠ 20202× the bet
70109♦A♣ 207♣8♦6♦ 21202× the bet
69104♥J♣3♠ 1710♠Q♥ 20202× the bet
6810A♣7♣ 183♥3♠K♣9♣ 25 bust00× the bet
6710Q♠2♠ 124♥A♠J♠J♦ 25 bust00× the bet
66108♦4♠9♦ 216♣5♦J♠ 21 doubled202× the bet
6510K♠6♥ 16Q♣6♥ 16 surrendered50.5× the bet
64108♦6♠6♣ 206♥6♣6♦ 1800× the bet
63105♥2♣ 7J♥A♠ 21 blackjack252.5945× the bet
621010♥J♥ 20J♦10♠ 20101× the bet
61102♠2♠Q♦A♥7♠ 22J♦8♥ 18202× the bet
6010A♥6♦ 173♦10♣9♦ 22 bust00× the bet
59109♠7♠5♣ 21Q♠10♦ 2000× the bet
5810A♠9♣ 209♠8♠ 1700× the bet
57102♥8♦2♦K♦ 22K♥7♣ 17202× the bet
56106♦J♠K♦ 26A♠6♣2♠ 19 doubled404× the bet
5510A♦A♥10♥A♣6♣ 192♥4♠8♠4♠ 1800× the bet
54104♠6♠Q♥ 203♣8♠A♥ 12 doubled00× the bet
53108♦7♠K♦ 25Q♣K♥ 20202× the bet
5210A♠7♥ 18J♦6♣ 16 surrendered50.5× the bet
511010♣3♠A♠6♣ 2010♦10♣ 20101× the bet

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
663d29a9bdd5b34349497b2ee8d600f5c516ccbf7a90f5f0b9f3bbfc62f58b31
Seed
99c5f8adb002a58632198a8af5d92b670264978d25e22b754c161ce977f25af2 SHA-256 of "degen.match.seed.v1", a zero byte and the 32 seed bytes is the seed hash.
Bettor's seed
1dcb2a29ad6665a1c68f3631746c47e1
Commitment
Batch 63,681, Merkle root 8627b4324a016df1251323dd58041d4e8ad894d61e564d09cc508ec28f87cd8e. Recorded by Degen Protocol, not on a chain. See this batch and its Merkle tree
Merkle path
  1. c7edc011bcf94427cf9b0672774e16f2a46d3fb2a2514d233a92e49bbecaedd9
  2. ffc3cbafdb13b258088a49e52b1a1a9890d508972443f30bc9f8550777345919
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.