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Degen Protocol
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Session against the house

Blackjack

ended Play money · 43dd8c875cecf603bebac82d78209d40

Watch the replayThe handsThe rulesCheck it is fair

gbbagainst the house
Hands played
200
Wagered
2,260 play
Returned
1,895 play
Bettor's net
-365 play
Return
83.85%

Results by hand

Final
Hands
200
played
Pace
23.2/min
overall 19.9/min
Biggest swing
-30
Seat 1 · hand 41

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

SeatNetRateStreak
gbb-365-182.5 play/100won 1

Last hands

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

The hands

Newest first
#BetDealerHandsPaidChecked
100102♦9♣3♦4♠ 18A♥2♦6♣ 19202× the bet
991010♣J♠ 205♥10♥ 15 surrendered50.5× the bet
9810J♣A♠ 21Q♣Q♦ 2000× the bet
97102♦K♦4♥5♣ 21K♣10♦ 2000× the bet
9610J♦K♠ 204♥J♦5♦ 1900× the bet
95107♥2♦ 9K♠3♣3♥K♠ 26 bust00× the bet
94109♥Q♥ 192♠10♠Q♠ 22 bust00× the bet
93105♦5♠K♣ 205♦5♥9♦ 19 doubled00× the bet
9210K♦7♥ 17A♣4♦7♥K♠ 22 bust00× the bet
91104♣J♥9♠ 235♦2♣K♠ 17202× the bet
90109♣A♣ 20J♦6♥ 16 surrendered50.5× the bet
89107♥2♣ 92♣K♠3♣10♦ 25 bust00× the bet
88109♣5♥A♦6♣ 216♦8♠5♦ 1900× the bet
87106♣7♠9♦ 227♠Q♠ 17202× the bet
86108♦A♥ 198♣6♦6♠ 208♥5♦Q♥ 23 bust202× the bet
8510K♥3♠7♣ 20Q♠2♣5♠ 1700× the bet
84105♣8♠9♣ 2210♥6♣ 16202× the bet
83103♥A♠4♠ 18K♠5♣ 1500× the bet
8210K♠K♠ 208♣10♦ 1800× the bet
8110J♦A♦ 21A♦K♥ 21 blackjack101× the bet
80106♣10♣A♥ 172♠Q♠ 1200× the bet
79109♥K♦ 19K♠5♠A♠J♣ 26 bust00× the bet
7810Q♥Q♣ 204♣4♣5♣K♦ 23 bust00× the bet
7710J♠6♦Q♣ 26K♠10♥ 20202× the bet
761010♦10♠ 202♣5♦8♠9♠ 24 bust00× the bet
7510K♠2♦K♦ 225♥8♠5♠ 18202× the bet
74103♦6♥Q♥ 19J♥K♠ 20202× the bet
731010♥5♥ 15J♥3♠Q♣ 23 bust00× the bet
72105♥10♠5♠ 206♠K♣ 1600× the bet
7110Q♠8♠ 187♠5♦3♠6♥ 21202× the bet
70102♦2♦5♥A♥ 20Q♥8♦ 1800× the bet
69109♣8♥ 174♣K♥2♣3♥ 19202× the bet
68107♦7♣Q♥ 242♦4♥8♣A♣2♣ 17202× the bet
6710Q♥6♦A♦ 17A♥6♠K♦ 17101× the bet
6610J♣7♥ 172♣A♣8♦ 21202× the bet
65103♣7♣5♦7♣ 222♠5♥4♥4♥ 15202× the bet
64102♠6♦10♣ 189♦2♥5♣ 16 doubled00× the bet
63104♠5♦7♣7♥ 234♣A♦8♠ 13202× the bet
62109♥Q♣ 193♣10♥3♥3♠ 19101× the bet
61105♠Q♦2♠ 17Q♣6♦ 1600× the bet
60108♣3♥5♦A♥ 179♣2♠K♥ 21 doubled404× the bet
5910A♥3♥7♥ 219♦J♦ 1900× the bet
5810Q♥7♠ 1710♦J♠ 20202× the bet
5710A♠7♥ 189♣4♣4♠ 1700× the bet
5610A♦4♣J♣J♦ 252♠A♦A♠6♥ 20202× the bet
5510Q♥9♦ 19A♣Q♠ 21 blackjack252.5945× the bet
54104♣J♥7♣ 2110♥K♣ 2000× the bet
5310A♦9♦ 20J♠9♣ 1900× the bet
5210A♦4♦5♣ 20J♥8♣ 1800× the bet
51108♦4♥ 123♦10♦9♦ 22 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
7b29a5119f677724fe47964e0e7298f0ffc7302ee79ef87ee879399682e28bf7
Seed
30444efe2c61a2343ed9dd2d7cc50ad819920c906267401719e7437e81e48ed2 SHA-256 of "degen.match.seed.v1", a zero byte and the 32 seed bytes is the seed hash.
Bettor's seed
d5d05af57af653a25e7f1b526cc51cd7
Commitment
Batch 73,039, Merkle root 90d38d4ce0f693b4be5756dbe4afc6d20b416150dde3e356c9b63ebd1736c28d. Recorded by Degen Protocol, not on a chain. See this batch and its Merkle tree
Merkle path
  1. 18af28ee8428e35292eb90ff17f1cbe926c8c0bb354545543ef751a39d577dde
  2. 65d8cda1ee614b28b736090dee3a58a58f95b0df9ca40452166aebb1e17386ca
  3. eaa1b1de449db21e2419fb074caa4a69b89742a7b1cb891ff2293f986c2efd9e
  4. f4797fb53753049a18ec98a5337cd0e3ef5a62f9de4da398fc5ec217cfb4d0b9
  5. d6715959dfccc1462bc6b6b826d56d457b90cfa754196d6a7eafe97730501a6b
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.