Degen Protocol
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Session against the house

Blackjack

ended Play money · 161a70cbff153da5b1d208b427bbd7ca

Watch the replayThe handsThe rulesCheck it is fair

gbbagainst the house
Hands played
200
Wagered
2,300 play
Returned
2,355 play
Bettor's net
+55 play
Return
102.39%

Results by hand

Final
Hands
200
played
Pace
19.8/min
overall 20.2/min
Biggest swing
-30
Seat 1 · hand 116

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

SeatNetRateStreak
gbb+55+27.5 play/100lost 1

Last hands

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

The hands

Newest first
#BetDealerHandsPaidChecked
100107♣K♠ 173♥5♣9♠ 17101× the bet
99109♦9♠ 188♥5♦10♥ 23 bust00× the bet
98103♠2♠ 5Q♥2♣10♣ 22 bust00× the bet
97103♣A♠ 14A♦K♣ 21 blackjack252.5945× the bet
96103♦4♥8♣4♣ 192♣J♠9♠ 21202× the bet
95104♠J♥Q♥ 245♠7♣ 12202× the bet
94105♠3♥J♦ 18K♠6♥ 1600× the bet
93105♦5♦7♣ 175♣8♣ 1300× the bet
92103♣7♥A♠ 214♦A♠9♣ 1400× the bet
91107♦7♥ 143♠10♦K♠ 23 bust00× the bet
90102♣4♠6♣4♣A♠ 175♥2♦K♦ 17101× the bet
8910A♣2♠10♠2♥J♦ 25Q♥Q♠ 20202× the bet
88107♥4♦ 11J♣5♦K♥ 25 bust00× the bet
8710J♣3♠5♥ 183♠J♣6♣ 19202× the bet
8610J♣5♦ 159♣7♣ 16 surrendered50.5× the bet
8510J♦9♣ 199♦2♥J♥ 21 doubled404× the bet
84108♥10♥ 18J♥8♦ 18101× the bet
8310J♦5♥ 152♥2♥K♦8♦ 22 bust00× the bet
8210A♥5♠ 166♣8♦J♣ 24 bust00× the bet
81105♠Q♥6♣ 213♠A♣8♦ 12 doubled00× the bet
80103♥J♥J♠ 233♥J♥ 13202× the bet
7910Q♠A♦ 219♥2♦ 1100× the bet
78104♣9♦4♥ 179♣6♦ 1500× the bet
77105♣5♠10♣ 208♠9♥ 1700× the bet
761010♠5♣ 15K♣A♣ 21 blackjack252.5945× the bet
75106♦J♠3♦ 195♦Q♠ 1500× the bet
7410Q♥4♦K♠ 249♠8♥ 17202× the bet
7310K♦Q♠ 202♥7♠5♠6♠ 20101× the bet
7210Q♥9♦ 19J♦5♥ 15 surrendered50.5× the bet
71109♦Q♣ 194♥4♣5♠A♣A♣5♠ 20202× the bet
7010Q♠A♣ 2110♣2♥ 1200× the bet
69102♠7♠8♥ 173♣J♠ 133♥10♠ 1300× the bet
68107♣Q♠ 173♥6♥3♣2♥3♦ 17101× the bet
67107♦6♦ 132♣5♠7♠8♣ 22 bust00× the bet
66105♠2♥Q♣ 17A♠8♠ 19202× the bet
65102♦4♦4♠5♣5♦ 202♠7♥9♦ 1800× the bet
64108♣J♠ 186♦Q♥2♣ 18101× the bet
6310A♦8♠ 197♣J♥ 1700× the bet
62108♣K♦ 183♣4♣9♠2♦ 18101× the bet
6110A♦4♦A♠Q♣8♣ 242♦7♠9♦ 18202× the bet
60104♦8♥ 12A♣J♦ 21 blackjack252.5945× the bet
59105♠6♥Q♣ 216♠Q♣ 1600× the bet
58106♠8♥J♠ 242♦7♥5♠ 14 doubled404× the bet
57108♥3♣ 115♠A♣K♥K♣ 26 bust00× the bet
5610Q♥5♥ 15J♣A♥ 21 blackjack252.5945× the bet
5510J♣5♣5♠ 208♣10♥ 1800× the bet
5410K♥8♥ 1810♦J♥ 20202× the bet
53108♠8♥Q♥ 267♥K♦ 17202× the bet
52106♦Q♦2♦ 182♠7♦7♣ 16 doubled2♠9♣9♠ 20 doubled404× the bet
51106♥3♦3♠9♣ 218♥K♥ 1800× 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
89d5e22b5949816d53304857d97a952efe7bb3384c1ece79a47c7598932797cb
Seed
eab90f8b75551390c978d05749c76eb81bba8bd8de33df88025397728ee3de7b SHA-256 of "degen.match.seed.v1", a zero byte and the 32 seed bytes is the seed hash.
Bettor's seed
b1a4ec53bd6fdf837c649d54c0331cc2
Commitment
Batch 68,822, Merkle root 3b29ec95e6ecdd47342ac7f43745b574c3b1aa3bfb28e3a4de0a15a90365320b. Recorded by Degen Protocol; on-chain publication is not available yet. See this batch and its Merkle tree
Merkle path
  1. f12b1cc74848754390599de4b130053b584efd0ace5f127660cf84bc225d6e43
  2. 41a865065503384ba049c4fc54071d293c2e27dc87d946dc4acdd63f16ba759c
  3. d63810f50de567ce94ab7a2f07b6a5a22c199ff913d76b1d4d9337650fc81aa3
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.