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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
50109♠A♦ 205♦J♣J♠ 25 bust00× the bet
4910J♦9♥ 19K♣2♥2♥10♥ 24 bust00× the bet
481010♦6♥ 168♣5♠10♣ 23 bust00× the bet
47102♠6♣J♥ 18Q♣5♥ 1500× the bet
461010♠A♣ 215♦2♥ 700× the bet
45103♦9♣Q♥ 224♣5♣4♥ 13 doubled404× the bet
4410Q♠9♦ 197♠10♥ 1700× the bet
4310A♣5♥Q♠2♠ 188♠K♦ 18101× the bet
42105♣7♦7♣ 195♠8♥ 1300× the bet
41103♠A♦2♠4♣ 206♠3♣Q♠ 19 doubled6♥K♣ 1600× the bet
40109♠9♠ 18K♦5♣Q♠ 25 bust00× the bet
39103♣6♠8♥ 17A♠2♣J♠ 1300× the bet
381010♣10♥ 209♠5♥Q♠ 24 bust00× the bet
3710Q♦8♣ 189♦8♦ 1700× the bet
36105♦J♦6♠ 21K♦6♦ 1600× the bet
35105♥J♥3♣ 189♥2♦A♦ 12 doubled00× the bet
34108♥3♥10♦ 217♦8♦3♠ 1800× the bet
3310J♦4♦J♠ 24K♣J♥ 20202× the bet
32109♥2♥ 1110♠6♥ 16 surrendered50.5× the bet
31102♦2♥A♦K♠A♥A♦ 175♣J♥ 1500× the bet
3010K♦J♠ 2010♣2♣A♣7♠ 20101× the bet
29102♠Q♣3♠8♦ 239♣3♦9♥ 21202× the bet
28103♥A♣K♣8♣ 22K♣4♦ 14202× the bet
2710A♣9♥ 20Q♣3♦Q♦ 23 bust00× the bet
26108♥K♥ 18J♥10♥ 20202× the bet
25105♦6♣10♣ 21A♦7♣ 18A♠3♥ 1400× the bet
2410J♣K♥ 202♥Q♠5♣ 1700× the bet
23106♥K♦ 16A♣J♦ 21 blackjack252.5945× the bet
22105♣J♠K♥ 256♥Q♦ 16202× the bet
21103♥2♣2♣4♣Q♣ 217♦8♦ 1500× the bet
2010K♣J♥ 204♣J♠2♠8♠ 24 bust00× the bet
1910J♥2♥ 124♠K♥2♥Q♣ 26 bust00× the bet
1810K♠2♣ 122♥A♠K♣10♣ 23 bust00× the bet
17103♥Q♣2♦6♣ 21K♥5♦ 1500× the bet
1610J♣A♣ 219♦8♥ 1700× the bet
15106♣J♠8♠ 24K♠6♥ 16202× the bet
141010♥A♦ 215♠6♥ 1100× the bet
13102♦3♠5♣9♣ 197♥A♣ 1800× the bet
1210A♥2♣ 133♦6♦6♥K♥ 25 bust00× the bet
1110A♥6♦ 176♣2♣A♣ 19202× the bet
10105♣K♥ 15A♥K♥ 21 blackjack252.5945× the bet
9107♥8♠7♥ 229♦7♠2♠ 18202× the bet
810J♥2♠10♣ 224♠7♦K♦ 21 doubled404× the bet
7102♦7♥9♦ 184♥Q♠ 1400× the bet
610J♦10♥ 20K♣2♦Q♠ 22 bust00× the bet
51010♠10♣ 20A♠K♠ 21 blackjack252.5945× the bet
4102♦8♣2♥4♠4♦ 207♣2♣9♦ 1800× the bet
310K♥A♠ 214♥5♥ 900× the bet
2109♦4♦ 13Q♦6♥ 16 surrendered50.5× the bet
1105♥6♠J♥ 215♠4♠8♥ 17 doubled00× 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.