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Degen Protocol
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Session against the house

Blackjack

ended Play money · fa5a595adfb6c18b4700b15498dad95a

Watch the replayThe handsThe rulesCheck it is fair

gbbagainst the house
Hands played
200
Wagered
2,250 play
Returned
2,060 play
Bettor's net
-190 play
Return
91.56%

Results by hand

Final
Hands
200
played
Pace
21.8/min
overall 20.5/min
Biggest swing
-30
Seat 1 · hand 10

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

SeatNetRateStreak
gbb-190-95.0 play/100won 1

Last hands

  1. 200Seat 1+15
  2. 199Even0
  3. 198Seat 1+10
  4. 197Even0
  5. 196Seat 1+10
  6. 195Even0
  7. 194Even0
  8. 193Even0
  9. 192Even0
  10. 191Seat 1+10
  11. 190Seat 1+30
  12. 189Even0

The hands

Newest first
#BetDealerHandsPaidChecked
50108♥2♥ 10A♦J♦ 21 blackjack252.5945× the bet
49104♠9♠4♦ 177♦9♥ 1600× the bet
481010♥7♥ 17A♣Q♦ 21 blackjack252.5945× the bet
47107♥K♥ 17Q♠7♦ 17101× the bet
4610A♥7♦ 184♥10♣9♠ 23 bust00× the bet
4510A♦10♠ 212♥7♦ 900× the bet
44104♠4♥9♠ 177♥10♠ 17101× the bet
43104♦Q♠9♥ 239♣J♥ 19202× the bet
4210A♠10♣ 215♣Q♥ 1500× the bet
4110K♠K♣ 207♠2♠6♠9♦ 24 bust00× the bet
4010A♣K♦ 218♥A♣ 1900× the bet
391010♦3♦7♣ 20J♠Q♠ 20101× the bet
38105♠Q♦A♠A♣ 1710♦8♣ 18202× the bet
3710A♦10♦ 214♠K♣ 1400× the bet
36109♠5♥4♠ 184♠7♥K♥ 21 doubled404× the bet
35107♥Q♦ 172♣4♦A♦10♠ 17101× the bet
34102♣5♥4♦6♠ 1710♣4♦ 1400× the bet
3310A♠4♥ 156♠4♠4♥9♣ 23 bust00× the bet
32103♥4♠6♥Q♥ 234♣J♥ 14202× the bet
3110Q♥8♦ 182♣A♥K♣10♥ 23 bust00× the bet
30108♠8♠ 16Q♠A♦ 21 blackjack252.5945× the bet
2910K♣4♥7♣ 21Q♠K♠ 2000× the bet
2810J♦4♣2♣J♣ 26Q♦7♦ 17202× the bet
27104♣2♦A♠ 177♠10♠ 17101× the bet
26105♠K♠Q♣ 257♣8♥ 15202× the bet
2510Q♥6♣9♠ 25A♠4♦4♠ 19202× the bet
24105♦10♠8♣ 238♠J♦ 18202× the bet
23106♣10♦ 16Q♦A♠ 21 blackjack252.5945× the bet
22107♥Q♣ 174♣A♣5♣ 20202× the bet
21109♦J♣ 194♥A♣6♦ 21202× the bet
2010J♣4♥ 149♦4♥10♥ 23 bust00× the bet
19105♥3♠6♥K♦ 2410♣K♦ 20202× the bet
1810J♦3♠ 133♥10♠3♠6♠ 22 bust00× the bet
17102♦K♠10♦ 226♥Q♠ 166♦3♥10♣ 19404× the bet
1610A♣9♥ 2010♦4♥10♠ 24 bust00× the bet
1510A♠6♣ 175♦10♦2♣ 17101× the bet
1410J♣K♣ 207♥A♦8♠5♥ 21202× the bet
1310J♠A♠ 214♥2♥ 600× the bet
121010♥8♠ 185♣9♠6♠ 20202× the bet
11109♥6♠6♦ 21A♦J♥ 21A♠7♦ 18101× the bet
10102♥7♣Q♣ 196♣7♣ 136♦4♣5♠ 15 doubled00× the bet
9106♦7♦6♣ 199♥J♠ 19101× the bet
8106♠4♥A♣ 214♥3♠A♦ 1800× the bet
7109♣K♠ 193♠2♥9♣A♠7♠ 22 bust00× the bet
6108♣6♥Q♥ 249♣2♣2♥ 13 doubled404× the bet
5102♦8♥K♣ 208♥Q♠ 1800× the bet
4105♣10♥6♦ 216♠9♠ 1500× the bet
3107♣K♠ 17Q♥J♦ 20202× the bet
2108♦6♦ 145♦10♥10♥ 25 bust00× the bet
1103♠9♥9♠ 216♦Q♥ 1600× 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
46c9dfe7532164a5c1c842374494db9872f100d1f0d43e34b9ddec49711e51f5
Seed
ab53ea7b73a4577c6a5de60496e599849141b0c8de5c3547bfd88a209f439aa3 SHA-256 of "degen.match.seed.v1", a zero byte and the 32 seed bytes is the seed hash.
Bettor's seed
27c3551490eee2cdc0844c6fbf0e415f
Commitment
Batch 64,691, Merkle root 36f300829a9207ec7c097ad8d8fe3e6cf6718315634bfcd4eec75f25bb73d4d6. Recorded by Degen Protocol, not on a chain. See this batch and its Merkle tree
Merkle path
  1. 758352c7f92882422fccb45c873d3d86c774cfe3e8d9f5df2ed7ca140629362f
  2. 827ba4d4c1a00ee00bb78276a827d048c519e88fe1daba095b73c15c2c22ba4e
  3. 78e0d6adbe9b8695a73155b9fe54dbc5a7fd692520de79d0cf700108ca230dfd
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.