Degen Protocol
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Session against the house

Blackjack

ended Play money · b8d8b7b8acda012ae3463cfb3b7192d3

Watch the replayThe handsThe rulesCheck it is fair

gbbagainst the house
Hands played
200
Wagered
2,280 play
Returned
2,505 play
Bettor's net
+225 play
Return
109.87%

Results by hand

Final
Hands
200
played
Pace
19.4/min
overall 21.0/min
Biggest swing
+30
Seat 1 · hand 170

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

SeatNetRateStreak
gbb+225+112.5 play/100lost 2

Last hands

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

The hands

Newest first
#BetDealerHandsPaidChecked
100102♥K♥Q♠ 225♣Q♣ 15202× the bet
9910A♥3♣Q♠10♥ 24A♣9♠ 20202× the bet
98107♠10♣ 17K♣7♦ 17101× the bet
97107♠3♥ 106♣K♦9♥ 25 bust00× the bet
96104♥J♥K♣ 249♦3♥ 12202× the bet
95109♥8♥ 174♠9♥Q♥ 23 bust00× the bet
9410Q♥3♦ 134♦J♥8♣ 22 bust00× the bet
93104♥8♣5♣ 179♦5♣ 1400× the bet
92109♠6♦5♦ 209♣J♦ 1900× the bet
91102♣Q♦10♣ 22Q♣10♥ 20202× the bet
90103♦A♣J♠7♠ 216♦8♥ 1400× the bet
8910Q♣2♣ 126♦10♠ 16 surrendered50.5× the bet
881010♣A♥ 215♠10♠ 1500× the bet
8710K♠3♠5♠ 184♣3♥Q♠ 1700× the bet
86104♠5♦A♣ 205♠Q♥ 1500× the bet
85105♥5♠Q♠ 20J♣J♠ 20101× the bet
84103♠8♠ 11Q♥A♣ 21 blackjack252.5945× the bet
83107♥10♥ 178♥3♦6♦ 17 doubled202× the bet
8210Q♦J♠ 206♠6♥Q♦ 22 bust00× the bet
81108♦3♣4♣8♦ 235♣5♦8♦ 18 doubled404× the bet
80108♦K♦ 18A♠10♣ 21 blackjack252.5945× the bet
7910A♦Q♣ 2110♥J♥ 2000× the bet
7810K♦8♥ 187♥8♣ 15 surrendered50.5× the bet
77108♣4♠J♥ 225♠3♦5♦A♣5♥ 19202× the bet
76109♥5♦8♠ 226♥8♥3♦ 17202× the bet
7510J♣J♠ 207♥4♥K♦ 21 doubled404× the bet
74106♥3♥7♠Q♣ 26A♥2♠8♠ 21 doubled404× the bet
73108♣K♥ 185♣7♥A♦J♦ 23 bust00× the bet
72103♦4♣J♠ 179♥6♣ 1500× the bet
71106♦10♣8♣ 24Q♥2♥ 12202× the bet
7010J♥10♦ 20Q♥5♥ 15 surrendered50.5× the bet
69108♣A♠ 194♥7♣3♦ 14 doubled00× the bet
68106♠3♥Q♠ 19Q♣6♦ 1600× the bet
6710J♦Q♠ 204♦4♥Q♥ 1800× the bet
66105♦10♠A♦4♣ 207♦A♣J♥ 18 doubled00× the bet
6510Q♠2♦ 12J♠4♠9♥ 23 bust00× the bet
6410A♦5♠9♦9♥ 2410♦10♦ 20202× the bet
6310J♥7♥ 175♣Q♦ 15 surrendered50.5× the bet
621010♥A♥ 216♠7♣ 1300× the bet
6110A♠Q♦ 21Q♣3♦ 1300× the bet
60106♣3♦6♣A♥5♥ 2110♥9♠ 1900× the bet
59103♥J♦5♦ 188♥10♠ 18101× the bet
5810A♣4♠7♥4♥K♣ 26A♦9♥ 20202× the bet
57104♠A♥8♥3♥K♥ 26A♦8♣ 19202× the bet
56109♠8♥ 175♠6♠9♠ 20 doubled404× the bet
55102♣J♠2♣9♥ 233♣A♦2♥4♦ 20202× the bet
5410A♣K♣ 218♦J♥ 1800× the bet
53104♦9♣K♥ 235♣Q♣ 15202× the bet
5210J♥5♠ 156♥10♠ 16 surrendered50.5× the bet
51109♣6♦9♥ 24A♥5♦7♠7♣ 20202× 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
a79d1c39478a5807ea715593f4993a51b90b9425340a742695db7db1d630f0fa
Seed
822d01e33093708f5139f32bcaeb78cea380ed923f5b4c7a670cbacff0ec8fc1 SHA-256 of "degen.match.seed.v1", a zero byte and the 32 seed bytes is the seed hash.
Bettor's seed
b1d4dde04d7c73c6a8458ce2b5150105
Commitment
Batch 72,397, Merkle root 24ed075750166c99c184343122b41035ce01f68d2287e5c04140d17497da5edc. Recorded by Degen Protocol; on-chain publication is not available yet. See this batch and its Merkle tree
Merkle path
  1. e35ff9985c520ec621829c86a2278bf028753bd987c26ceff5fda4df707ccc50
  2. ada0a178e2de50a886d24f47d5c1b0eca18efe0b9c93e643fca4f09cc08c844b
  3. ba40d050e2174b05283a66ac2d232f64cd4f412805f734b901cf5a6452e0ea6b
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.