Degen Protocol
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Session against the house

Blackjack

ended Play money · bb8acb6747597f28e317b3f80ae7e2d7

Watch the replayThe handsThe rulesCheck it is fair

gbbagainst the house
Hands played
200
Wagered
2,320 play
Returned
2,555 play
Bettor's net
+235 play
Return
110.13%

Results by hand

Final
Hands
200
played
Pace
21.1/min
overall 20.7/min
Biggest swing
+40
Seat 1 · hand 53

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

SeatNetRateStreak
gbb+235+117.5 play/100lost 3

Last hands

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

The hands

Newest first
#BetDealerHandsPaidChecked
100106♦A♣ 175♦9♣ 1400× the bet
99106♣3♥4♥A♦4♠ 1810♠8♠ 18101× the bet
9810J♥A♠ 218♦3♣ 1100× the bet
97105♥5♥Q♥ 208♥J♦ 1800× the bet
9610A♦5♦2♥ 185♥A♥8♥5♦ 19202× the bet
9510K♦5♦Q♥ 258♥Q♣ 18202× the bet
94108♠9♥ 17K♥9♥ 19202× the bet
93107♠5♣10♥ 222♠K♣6♣ 18202× the bet
92106♦3♠10♣ 1910♠Q♦ 20202× the bet
91107♠7♥ 14Q♣5♥A♣6♠ 22 bust00× the bet
90106♠3♣A♣ 20J♣8♠ 1800× the bet
89103♠3♣10♥A♦ 173♠10♠ 1300× the bet
88103♦7♣4♠K♣ 2410♥8♠ 18202× the bet
8710J♦3♠ 133♦4♥6♥J♦ 23 bust00× the bet
8610Q♣A♦ 217♥6♦ 1300× the bet
8510K♣3♣2♣8♠ 239♣10♠ 19202× the bet
84108♣2♠ 109♣5♠2♠10♥ 26 bust00× the bet
83107♠5♦ 129♥6♣Q♠ 25 bust00× the bet
82102♥4♥J♣3♥ 195♦8♦ 1300× the bet
8110K♣J♦ 204♠2♣8♥6♦ 20101× the bet
80107♣7♣10♥ 247♥Q♦ 17202× the bet
79105♥8♦A♣8♠ 228♦6♦ 14202× the bet
7810J♠K♦ 208♦6♠A♥6♦ 21202× the bet
7710K♥5♠3♠ 18K♣2♠5♥ 1700× the bet
76108♠5♠7♠ 20Q♦8♠ 1800× the bet
75102♥9♠K♥ 212♥9♣9♦ 20 doubled2♣Q♠8♠ 2000× the bet
7410Q♦A♠ 214♥5♣ 900× the bet
731010♠6♣10♣ 26K♦7♣ 17202× the bet
72105♦8♥A♥2♦6♥ 228♥4♠ 12202× the bet
711010♥Q♣ 2010♠10♥ 20101× the bet
70104♦7♠9♠ 202♠4♣7♦ 1300× the bet
69109♠J♣ 19Q♦4♠3♣ 1700× the bet
68105♠7♠2♠3♦ 17J♣10♦ 20202× the bet
6710K♣10♠ 20K♠6♥ 16 surrendered50.5× the bet
6610Q♠6♦ 16K♠A♣ 21 blackjack252.5945× the bet
65105♦6♥7♥ 18K♣10♥ 20202× the bet
6410K♦5♦ 15A♠2♦2♥K♥Q♦ 25 bust00× the bet
63105♦3♣ 8J♠A♥ 21 blackjack252.5945× the bet
6210Q♠4♣8♦ 225♣4♦10♦ 19202× the bet
61105♠A♦7♣7♣ 204♥8♠ 1200× the bet
601010♥6♦8♥ 247♣10♣ 17202× the bet
59107♥6♠J♦ 233♥10♠3♣5♦ 21202× the bet
58106♥2♦ 8A♦Q♠ 21 blackjack252.5945× the bet
57105♦2♣7♠8♥ 225♦7♥ 12202× the bet
56104♠5♦A♣ 207♦6♥ 1300× the bet
55104♣6♣5♦Q♦ 255♣9♥ 14202× the bet
54108♠8♠A♥ 17J♣6♥5♣ 21202× the bet
53106♣K♦Q♠ 264♣A♥A♥ 16 doubled4♠7♣3♣ 14 doubled808× the bet
52105♥6♥3♣9♥ 233♥K♠ 13202× the bet
5110J♥A♦ 214♠7♦ 1100× 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
d5083d7e30107c5ac2c11bb8226433300ff5364dddf6b146623f6204a16339a9
Seed
c95c5fec49c0fa82e4e19df5bf0f0d248c8eb751f9ca6d394be9a64963b6e886 SHA-256 of "degen.match.seed.v1", a zero byte and the 32 seed bytes is the seed hash.
Bettor's seed
bcd02f17fa72e795e230b11ee6ae5870
Commitment
Batch 68,686, Merkle root b93d8aa129dd7ce2fb50ef9490f4e984fd9d145736f9c16a64f8a94ddb8e3283. Recorded by Degen Protocol; on-chain publication is not available yet. See this batch and its Merkle tree
Merkle path
  1. 83d22e362219f27f7b4f03b467fdb6f56226e8433034d4cd998b6a7dc479b610
  2. 2c77b57b100e125c88274ce49a208c8b7a73075ce1a7bffae84f8772c55f734b
  3. c2cbad6e8b8b19e3e11264fbe48db2be94cf7f7ec81e40014890b87dd5f649c2
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.