Degen Protocol
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Session against the house

Blackjack

ended Play money · 05021ec3189433d667b4b86d3181f7fa

Watch the replayThe handsThe rulesCheck it is fair

gbbagainst the house
Hands played
200
Wagered
2,240 play
Returned
2,020 play
Bettor's net
-220 play
Return
90.18%

Results by hand

Final
Hands
200
played
Pace
21.3/min
overall 21.0/min
Biggest swing
+20
Seat 1 · hand 9

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

SeatNetRateStreak
gbb-220-110.0 play/100lost 6

Last hands

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

The hands

Newest first
#BetDealerHandsPaidChecked
5010K♦3♠8♠ 21A♦2♣6♦ 1900× the bet
4910Q♠A♥ 21J♥2♣ 1200× the bet
481010♣10♠ 207♦6♥10♠ 23 bust00× the bet
47106♥K♠3♥ 199♦4♠ 1300× the bet
46105♦10♥3♠ 18Q♥7♥ 1700× the bet
45102♠4♠9♥2♣ 178♣10♥ 18202× the bet
4410J♠5♠4♠ 194♠6♠8♥ 1800× the bet
4310A♠J♣ 218♣9♣ 1700× the bet
42105♥9♥2♥3♣ 19Q♣10♦ 20202× the bet
41108♣10♠ 18A♥Q♦ 21A♠Q♠ 21404× the bet
40104♥5♦6♥Q♠ 255♥10♥ 15202× the bet
39104♦6♣A♣ 219♣A♠ 2000× the bet
381010♣10♦ 20J♠5♦ 15 surrendered50.5× the bet
37104♠A♦3♣ 189♣6♦ 1500× the bet
3610K♦5♦5♠ 208♥10♠ 1800× the bet
35107♦5♦4♠5♣ 2110♠10♠ 2000× the bet
34103♦8♠3♠A♠6♥ 214♠4♣10♣ 1800× the bet
33108♠5♥Q♠ 23A♦8♣ 19202× the bet
321010♠10♥ 20Q♣10♣ 20101× the bet
31108♠9♥ 1710♠J♦ 20202× the bet
30107♦K♣ 176♥8♠8♦ 22 bust00× the bet
29107♥3♠ 10A♣K♠ 21 blackjack252.5945× the bet
2810Q♦J♦ 205♦A♣Q♥J♣ 26 bust00× the bet
27105♣6♥8♥ 196♠8♦ 1400× the bet
26108♠6♥A♦4♣ 195♣7♦8♠ 20202× the bet
2510J♦10♠ 2010♠6♦ 16 surrendered50.5× the bet
24105♠5♦A♣ 21A♥4♠6♣ 21 doubled202× the bet
23106♥3♦2♥6♣ 17K♥3♣ 1300× the bet
22104♦J♣5♣ 19Q♥4♣ 1400× the bet
21102♠3♠A♥9♥6♦ 219♥K♠ 1900× the bet
2010Q♠8♠ 183♥7♠J♦ 20202× the bet
1910K♠A♠ 215♣10♠ 1500× the bet
18109♠7♥ 168♣5♦K♣ 23 bust00× the bet
1710A♣7♣ 185♠K♥10♥ 25 bust00× the bet
1610Q♥3♦ 136♦J♦ 16 surrendered50.5× the bet
151010♣8♥ 183♣2♣J♣J♠ 25 bust00× the bet
1410K♣5♠4♣ 199♥4♣5♥ 1800× the bet
1310Q♦2♦ 12J♥A♥ 21 blackjack252.5945× the bet
1210A♥5♥ 16A♠5♣7♠Q♥ 23 bust00× the bet
11105♥5♣9♦ 196♠10♠ 1600× the bet
10102♣Q♦K♥ 2210♦3♥ 13202× the bet
9108♠7♣5♦ 205♣6♥Q♣ 21 doubled404× the bet
8106♠K♦J♠ 2610♥6♦ 16202× the bet
7106♣4♥2♣2♣3♥ 173♣2♠9♥ 1400× the bet
6107♣5♠8♦ 206♣4♥J♦ 20 doubled202× the bet
510K♥9♥ 196♣8♥A♣K♦ 25 bust00× the bet
410A♣3♦4♠ 1810♥8♠ 18101× the bet
3105♠3♣A♣ 194♥Q♥ 1400× the bet
2107♣3♥ 105♣Q♦10♠ 25 bust00× the bet
1109♥2♠ 115♦9♥K♣ 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
c177bbc4ecebd98a5072742dece70b8d4f5a491174b2b1503bf6403ffbff2af3
Seed
ec0a76c881a3aab7fce262ec74f108e7f1d0ec114100257a81c7a659082785c3 SHA-256 of "degen.match.seed.v1", a zero byte and the 32 seed bytes is the seed hash.
Bettor's seed
0901abd330ec67ca77114f1f556baa8f
Commitment
Batch 67,997, Merkle root dfa6bc8ed4797e65617de7d1ded721a8d53b1eea963422808d958c21e49a2183. Recorded by Degen Protocol; on-chain publication is not available yet. See this batch and its Merkle tree
Merkle path
  1. b13fd7281336c10980756af5b57854b71d7d7f4ca52bd6a12edd3cf2c4cfd2ec
  2. 508ed1017c3e8ea713920fbb77a8f66ec3df352f5d46281cb16a840d1785ac45
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.