Degen Protocol
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Session against the house

Blackjack

ended Play money · 3a883b78a3b5cef79ca7b099c23059f8

Watch the replayThe handsThe rulesCheck it is fair

gbbagainst the house
Hands played
200
Wagered
2,380 play
Returned
2,350 play
Bettor's net
-30 play
Return
98.74%

Results by hand

Final
Hands
200
played
Pace
20.1/min
overall 20.3/min
Biggest swing
-20
Seat 1 · hand 21

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

SeatNetRateStreak
gbb-30-15.0 play/100lost 1

Last hands

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

The hands

Newest first
#BetDealerHandsPaidChecked
501010♠J♥ 20J♥K♠ 20101× the bet
49104♥8♦10♠ 22K♣2♦ 12202× the bet
4810J♦7♣ 173♦Q♠8♠ 21202× the bet
47109♣8♥ 177♠J♥ 17101× the bet
4610Q♦6♥2♠ 185♦5♦K♠ 20202× the bet
4510A♥Q♦ 215♠4♥ 900× the bet
44104♣5♠8♥ 172♥8♦J♣ 20 doubled404× the bet
43102♥7♠9♠ 189♠8♠ 1700× the bet
42102♥K♥3♠4♠ 194♥5♣10♥ 19101× the bet
4110A♣9♣ 207♣Q♥ 1700× the bet
40108♦K♠ 186♦5♣5♥ 16 doubled00× the bet
39106♣9♦3♥ 188♦J♥ 18101× the bet
3810A♣5♠A♥ 172♦A♦2♣6♦ 21202× the bet
3710Q♠6♠8♥ 24A♠6♣ 17A♦Q♥ 21404× the bet
36108♣3♥4♥K♦ 25K♣4♠4♣ 18202× the bet
351010♥9♥ 196♦8♦2♣7♥ 23 bust00× the bet
3410A♣2♦10♣3♥Q♦ 266♥2♠A♦ 19202× the bet
33109♥9♥ 187♠2♦10♦ 19202× the bet
3210J♣8♥ 18J♦6♣ 16 surrendered50.5× the bet
3110J♣3♣10♦ 23J♦8♠ 18202× the bet
30104♣5♠6♣5♣ 204♠4♣A♦ 1900× the bet
29108♣A♥ 197♠K♣ 1700× the bet
28109♠9♥ 187♥3♥2♠ 12 doubled00× the bet
2710K♥4♣ 147♦6♥A♥2♦9♠ 25 bust00× the bet
26109♦8♣ 17J♥K♦ 20202× the bet
25104♦3♥9♥A♣ 177♦9♣ 1600× the bet
24103♣3♣3♣8♦ 177♥2♥J♥ 19 doubled404× the bet
2310J♥2♣9♦ 21K♣9♣ 1900× the bet
22107♠6♦ 132♣Q♥2♥9♠ 23 bust00× the bet
21105♣9♦4♠ 184♥6♣4♠ 14 doubled00× the bet
2010K♦Q♣ 202♦5♥2♦3♦5♠ 1700× the bet
191010♦4♠ 149♦7♦ 16 surrendered50.5× the bet
18107♦J♣ 17Q♠2♦K♠ 22 bust00× the bet
17105♦8♣10♣ 23K♦2♠ 12202× the bet
1610J♦2♣7♥ 194♥5♣Q♣ 19101× the bet
15105♣9♦7♥ 219♣5♠ 1400× the bet
1410J♠Q♣ 208♦4♠9♠ 21202× the bet
1310J♥K♥ 20Q♣9♣ 1900× the bet
12108♦7♥ 152♣10♣10♦ 22 bust00× the bet
1110K♠3♣6♦ 19Q♣10♥ 20202× the bet
10104♦A♠Q♣5♠ 206♦10♠ 1600× the bet
91010♦4♥10♠ 242♠4♠2♥Q♠ 18202× the bet
810J♣K♣ 20K♦6♦ 16 surrendered50.5× the bet
7103♣2♥Q♠2♥ 173♥10♥ 1300× the bet
6104♥10♥10♣ 243♦4♠5♥ 12202× the bet
51010♣7♥ 175♣K♣ 15 surrendered50.5× the bet
410K♠Q♣ 2010♦8♦ 1800× the bet
310A♦Q♠ 214♥A♠ 1500× the bet
210A♥8♠ 19J♠4♦A♣K♥ 25 bust00× the bet
1106♣A♠ 17J♠2♦ 1200× 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
e01d8e0e88e62a96c199592b8e41712e22e30c84a0fea8bd6cff6256a13fe9f3
Seed
84c5fbb38be5b80146ddba95748b6bab87837a055904bc52ca78467e523edb8d SHA-256 of "degen.match.seed.v1", a zero byte and the 32 seed bytes is the seed hash.
Bettor's seed
492afdf2ed554c57e3c22b1e079b3122
Commitment
Batch 71,414, Merkle root af9a539cf96b0a9c4ebff4917a6249057a6365565ceca9f4c6824a73a86d09d8. Recorded by Degen Protocol; on-chain publication is not available yet. See this batch and its Merkle tree
Merkle path
  1. 37a3fb0b10c1d02ca738a7fa356de2ca545f750d4638a201f3b063d2abba760b
  2. 9540c01c02e2b6c82ee1b301cb47110f7aa109db4308bc9a03166c751f6ddea4
  3. 61b88d8e806d0833264e49ffda426eda3a7c0613a556699e138ebf02facef410
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.