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Degen Protocol
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Session against the house

Blackjack

ended Play money · 79e4cae7d38e683c3997939e624333d8

Watch the replayThe handsThe rulesCheck it is fair

gbbagainst the house
Hands played
200
Wagered
2,280 play
Returned
2,260 play
Bettor's net
-20 play
Return
99.12%

Results by hand

Final
Hands
200
played
Pace
22.4/min
overall 20.1/min
Biggest swing
+40
Seat 1 · hand 60

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

SeatNetRateStreak
gbb-20-10.0 play/100lost 1

Last hands

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

The hands

Newest first
#BetDealerHandsPaidChecked
10010J♥3♠Q♣ 23J♣8♠ 18202× the bet
9910A♣K♣ 212♠7♠ 900× the bet
9810K♣10♥ 20Q♥K♣ 20101× the bet
97102♣8♥A♣ 216♠3♥K♦ 1900× the bet
96104♦3♠K♠ 17Q♣8♣ 18202× the bet
9510A♥J♦ 2110♠4♦ 1400× the bet
94109♥4♥ 137♥9♣ 16 surrendered50.5× the bet
931010♥J♦ 209♦9♥ 1800× the bet
92103♦5♠6♣K♥ 246♦5♦7♦ 18 doubled404× the bet
911010♦4♠10♥ 244♠J♥7♦ 21202× the bet
90103♣8♦9♦ 203♣6♥8♣ 17 doubled00× the bet
89109♠Q♠ 199♥K♣ 199♦J♦ 19202× the bet
88105♥2♥10♦ 174♣K♣ 1400× the bet
871010♠6♥Q♠ 267♠3♣Q♦ 20202× the bet
8610K♣10♣ 202♥2♦2♠A♠3♣ 20101× the bet
85105♣Q♦5♣ 202♣K♠ 1200× the bet
8410J♠9♣ 197♠9♥ 16 surrendered50.5× the bet
83103♣Q♥8♥ 217♦J♥ 1700× the bet
821010♦7♦ 173♠Q♦J♦ 23 bust00× the bet
81108♦K♦ 185♦9♥2♦3♦ 19202× the bet
80107♠10♠ 172♥8♥Q♠ 20 doubled404× the bet
791010♦6♠ 16Q♣2♣K♠ 22 bust00× the bet
7810J♥2♣ 12K♦A♦ 21 blackjack252.5945× the bet
771010♣2♦2♥10♣ 24A♣3♥ 14A♦8♣ 19404× the bet
76109♦4♦5♣ 187♦A♦10♠ 18101× the bet
75105♦Q♥8♠ 238♦A♦ 19202× the bet
74107♦A♦ 187♣6♥Q♠ 23 bust00× the bet
7310Q♣Q♣ 20Q♥K♦ 20101× the bet
7210Q♦K♥ 204♥3♣A♣7♣A♣10♦ 26 bust00× the bet
71104♦Q♣3♠ 174♣7♣8♦ 19 doubled404× the bet
7010A♠8♠ 19Q♥Q♦ 20202× the bet
69107♠Q♦ 172♠10♥5♠ 17101× the bet
6810A♥4♦Q♣J♠ 253♥5♠4♣6♣ 18202× the bet
671010♥8♦ 185♥A♦10♠10♥ 26 bust00× the bet
66106♠Q♠Q♦ 268♣J♠ 18202× the bet
65108♦7♠3♠ 184♠9♦8♦ 21202× the bet
6410A♦6♠ 17A♦5♦Q♥7♦ 23 bust00× the bet
6310Q♦4♦ 1410♠5♣ 15 surrendered50.5× the bet
62107♥3♠K♥ 208♣4♥2♥A♣A♣4♥ 208♥7♦9♠ 24 bust101× the bet
61107♣2♦J♦ 194♣7♠K♠ 21 doubled404× the bet
60103♣2♥K♠J♦ 257♥6♥ 137♣9♦ 167♥J♥ 177♦J♦ 17808× the bet
59107♣A♥ 187♦Q♣ 1700× the bet
5810Q♦5♦7♠ 223♠3♣2♥10♦ 18202× the bet
57105♠3♦A♠ 19Q♣2♠ 1200× the bet
5610Q♥3♥ 133♣A♣J♣8♣ 22 bust00× the bet
5510J♥J♣ 202♥6♦10♠ 1800× the bet
54109♠7♥6♣ 228♦6♥5♣ 19202× the bet
53102♣7♣6♠6♥ 216♦8♦ 1400× the bet
52104♥2♠5♦Q♦ 219♥5♦ 1400× the bet
51107♦7♥ 146♠10♥8♠ 24 bust00× 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
eb7967d4aae1ca62ce86e49753e0e55fad2313271da11cec82bdd3ff2a1e736b
Seed
c76b599c3617450e91c642908442f1c3a5c0db0434c951026ab486ba21271577 SHA-256 of "degen.match.seed.v1", a zero byte and the 32 seed bytes is the seed hash.
Bettor's seed
5e5ba27c378c67cfd3590a5eae6662ca
Commitment
Batch 63,927, Merkle root 0d65ec3b1106a8d7d01641e894d58c84c1b2fd6ca0cb84ec0fafe87be8089191. Recorded by Degen Protocol, not on a chain. See this batch and its Merkle tree
Merkle path
  1. e748df6938e2997eb4b1319026d9cd3ccc6ae10fd097a4175e19c378130e7760
  2. bb53043c05b080f72d75d1307e25ce3bad5d934890dde5d949040216c7a6491a
  3. c14ce72e0d05a5540fa0d0aae4565146eb4eac03fb54ce5672ed370732ec650d
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.