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Degen Protocol
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Session against the house

Blackjack

ended Play money · 44f7fe03a9b1c6690ec249ee82c9c438

Watch the replayThe handsThe rulesCheck it is fair

gbbagainst the house
Hands played
200
Wagered
2,270 play
Returned
2,290 play
Bettor's net
+20 play
Return
100.88%

Results by hand

Final
Hands
200
played
Pace
21.8/min
overall 20.8/min
Biggest swing
-30
Seat 1 · hand 90

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

SeatNetRateStreak
gbb+20+10.0 play/100won 2

Last hands

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

The hands

Newest first
#BetDealerHandsPaidChecked
100106♣A♦ 1710♣K♥ 20202× the bet
991010♦J♠ 207♥J♣ 1700× the bet
98104♣3♦K♦ 17K♥3♥ 1300× the bet
9710A♣7♥ 18K♣A♥ 21 blackjack252.5945× the bet
96103♥10♦4♠ 177♠6♠ 1300× the bet
95103♣8♦A♥6♠ 18Q♣6♠ 1600× the bet
94109♦9♣ 1810♣K♠ 20202× the bet
93108♥9♥ 1710♥4♠5♣ 19202× the bet
92103♦4♣7♣2♠5♦ 216♣3♦A♦ 20 doubled00× the bet
9110A♠4♠5♠ 20Q♠3♠8♣ 21202× the bet
90105♣6♠9♦ 207♠K♣ 177♦A♦A♥ 19 doubled00× the bet
89104♦7♥9♥ 20Q♦9♠ 1900× the bet
8810A♦Q♠ 219♠6♣ 1500× the bet
87107♥J♦ 173♣10♥5♥ 18202× the bet
86107♥K♣ 173♠5♣A♣ 193♣8♠4♠ 15 doubled202× the bet
8510J♦J♥ 20A♣3♦7♦ 21202× the bet
8410Q♥9♣ 19J♦Q♦ 20202× the bet
8310J♥8♥ 184♥Q♥5♦ 19202× the bet
82104♠3♦J♥ 176♦K♠ 1600× the bet
81102♥K♣ 12K♥A♣ 21 blackjack252.5945× the bet
80108♣A♦ 198♣5♣2♥9♥ 24 bust00× the bet
7910Q♣6♦9♦ 254♦K♠3♣ 17202× the bet
78103♦2♦2♥A♠ 18K♣5♣ 1500× the bet
7710K♣8♥ 187♠9♣ 16 surrendered50.5× the bet
76109♠8♣ 179♣4♥7♥ 20202× the bet
75102♦6♥10♥ 184♣6♠A♦ 21 doubled404× the bet
7410K♦J♦ 203♥3♦6♣7♠ 1900× the bet
731010♠2♦ 125♥9♦2♣7♥ 23 bust00× the bet
72102♣5♠A♠ 183♥10♥ 133♥9♠K♥ 22 bust3♣5♦10♥ 183♠9♣7♣ 19303× the bet
71104♣A♣4♣ 194♠4♣J♦ 1800× the bet
701010♥6♣3♦ 19A♠7♦K♣ 1800× the bet
69102♠A♣2♣7♥A♦10♣ 23Q♦7♣ 17202× the bet
6810Q♦3♦8♣ 21Q♣Q♠ 2000× the bet
67102♥4♥5♣10♥ 214♥2♥4♠2♦3♦ 1500× the bet
66103♠3♥J♦K♣ 2610♠J♣ 20202× the bet
651010♦3♥7♠ 20K♣8♣ 1800× the bet
64108♠K♦ 1810♦6♥Q♦ 26 bust00× the bet
6310A♠A♦10♥K♣ 229♣6♠4♠ 19202× the bet
62109♥K♠ 193♦7♦J♠ 20 doubled404× the bet
61106♥J♥9♥ 25Q♣2♦ 12202× the bet
60103♣A♣2♠J♠9♦ 2510♣Q♠ 20202× the bet
59104♦2♠6♥4♦7♣ 234♦8♦ 12202× the bet
58107♠5♥A♣K♣ 233♠4♥Q♣ 17202× the bet
5710K♣J♥ 203♥6♦A♥ 20101× the bet
56105♣8♥K♥ 23A♦J♦ 21A♠5♦ 16404× the bet
55107♠9♠ 165♣10♣J♣ 25 bust00× the bet
54105♣2♥A♦ 18J♦K♣ 20202× the bet
5310Q♣8♥ 182♣7♣4♦J♠ 23 bust00× the bet
52107♥5♥5♥ 17A♦5♥Q♥5♠ 21202× the bet
51106♣J♣3♠ 195♣J♥ 1500× 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
0cc3818dc21aa3d3326b5b5572ca9a54d9b84f6a454d66d6ae36488241b31855
Seed
0a9c8efc47c4f4bc4b5fdb7b5bed890b54123d36256aff86ec46c527c4ecdce8 SHA-256 of "degen.match.seed.v1", a zero byte and the 32 seed bytes is the seed hash.
Bettor's seed
b1c29ac42aefb1d1b13264e15c0ad42e
Commitment
Batch 63,231, Merkle root b27c46d4b6bbe550f4c983048dd1b9d575b74d214394f3626b57653735a7dc33. Recorded by Degen Protocol, not on a chain. See this batch and its Merkle tree
Merkle path
  1. beac687849f95a35594e7a2a32a6366ea913b3d5a5613a93539db7e328c797dd
  2. b11c495730d8b87405fd55344808cb1c00f722092431ba13600e8108b6f9370e
  3. 92c950bfc61be8967f9358e6aab320f1871e8012a59ed28006e32b882b0dff33
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.