Degen Protocol
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Session against the house

Blackjack

ended Play money · 5d95ab56f89a09c20c71d43394375002

Watch the replayThe handsThe rulesCheck it is fair

gbbagainst the house
Hands played
200
Wagered
2,330 play
Returned
2,485 play
Bettor's net
+155 play
Return
106.65%

Results by hand

Final
Hands
200
played
Pace
20.0/min
overall 20.2/min
Biggest swing
+50
Seat 1 · hand 38

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

SeatNetRateStreak
gbb+155+77.5 play/100won 4

Last hands

  1. 200Seat 1+10
  2. 199Seat 1+10
  3. 198Seat 1+20
  4. 197Seat 1+10
  5. 196Even0
  6. 195Even0
  7. 194Even0
  8. 193Even0
  9. 192Even0
  10. 191Seat 1+20
  11. 190Even0
  12. 189Even0

The hands

Newest first
#BetDealerHandsPaidChecked
5010A♥9♣ 20K♠3♥3♥2♣ 1800× the bet
49104♠7♦Q♠ 213♠7♦5♣ 15 doubled00× the bet
48103♣A♦6♥ 2010♠5♠ 1500× the bet
47102♣9♦4♥7♦ 2210♣2♣8♦ 20202× the bet
46102♣7♥4♠2♠J♥ 258♦J♠ 18202× the bet
45108♥6♠3♦ 176♠5♦10♣ 21 doubled404× the bet
44108♠9♣ 175♠A♠Q♥8♣ 24 bust00× the bet
4310A♣6♦ 172♠Q♣4♥8♠ 24 bust00× the bet
42102♠Q♦5♥ 17K♦7♠ 17101× the bet
41103♥7♣K♥ 205♦Q♣ 1500× the bet
4010A♥J♦ 21A♠5♠ 1600× the bet
3910J♦5♠6♣ 212♠7♠2♣J♥ 21101× the bet
38104♠5♦7♥8♥ 243♦6♣5♣ 14 doubled3♠8♥4♥ 15 doubled3♣2♣7♦ 1210010× the bet
3710K♥A♦ 21Q♥5♦ 1500× the bet
36108♥10♦ 1810♥Q♦ 20202× the bet
35108♦2♦J♠ 209♥4♣A♣5♠ 1900× the bet
34105♠2♠K♣ 175♣3♥3♠3♣ 1400× the bet
33106♦10♣10♣ 26Q♣K♣ 20202× the bet
32109♠3♣3♦Q♠ 2510♠J♣ 20202× the bet
3110A♦6♦ 178♥6♠8♦ 22 bust00× the bet
3010K♣6♠A♣ 17K♣J♥ 20202× the bet
2910J♠A♣ 215♣J♣ 1500× the bet
2810J♣3♦ 135♣10♠ 15 surrendered50.5× the bet
27109♠K♦ 1910♥3♠3♠10♠ 26 bust00× the bet
26107♣9♦ 16K♥6♣Q♥ 26 bust00× the bet
2510K♠2♦4♠9♥ 252♠4♥2♣9♠ 17202× the bet
241010♣J♣ 20A♦6♠5♠4♦8♣ 24 bust00× the bet
23104♥7♠4♠7♣ 2210♣7♥ 17202× the bet
221010♦Q♣ 203♥2♠3♦9♥ 1700× the bet
21102♠Q♠7♠ 192♥8♦K♠ 20 doubled404× the bet
2010A♠K♣ 217♠3♣ 1000× the bet
19107♣10♥ 172♣J♣3♠2♦ 17101× the bet
1810Q♠A♥ 21Q♣10♣ 2000× the bet
17106♠3♥6♥5♣ 20K♠Q♠ 20101× the bet
1610Q♦2♦ 12J♠A♠ 21 blackjack252.5945× the bet
15104♠5♠6♠2♥ 17A♣9♦ 20202× the bet
1410A♦2♣K♦8♣ 21J♠3♠7♥ 2000× the bet
13109♠3♥7♥ 192♥8♥6♣ 16 doubled00× the bet
12105♠10♥10♥ 255♥J♥ 15202× the bet
11102♦7♠K♠ 192♠J♠K♣ 22 bust2♥3♣5♥3♦ 1300× the bet
101010♣9♦ 19A♣K♠ 21 blackjack252.5945× the bet
9105♥5♠Q♣ 202♣Q♦ 1200× the bet
810Q♦Q♣ 207♠8♥ 15 surrendered50.5× the bet
71010♦Q♥ 20Q♠5♣ 15 surrendered50.5× the bet
610J♥5♥8♠ 23J♠Q♥ 20202× the bet
5104♠2♦ 6K♥A♦ 21 blackjack252.5945× the bet
4103♥3♦J♥K♣ 269♥2♠3♦ 14 doubled404× the bet
3107♣5♥4♥2♣ 18Q♠6♥A♠ 1700× the bet
2103♦5♥J♠ 185♦7♣4♥ 1600× the bet
11010♦Q♥ 206♦K♥ 16 surrendered50.5× 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
0ccc55cad7f04a7a028c5977bafc562060ddf52242de344d18325b97f95503b5
Seed
400aaa511dc023728612e3d36883580f3037c57e99c2439327cbff8bada7a44f SHA-256 of "degen.match.seed.v1", a zero byte and the 32 seed bytes is the seed hash.
Bettor's seed
c70d245f39949134b46dbe849596699f
Commitment
Batch 69,221, Merkle root 5ee25373ccee6da93f2dfa553a4e325c9725ea0b8d92da3a4beed7054c59255b. Recorded by Degen Protocol; on-chain publication is not available yet. See this batch and its Merkle tree
Merkle path
  1. fea4bebb3b2bf9496e9abb85ee23eae08896128c5baf10cf4fdbf35f21c02c5e
  2. 2f8af7f6ac69b93e133dc681447dc04557e51be3c5c0bd4d25007bf8aa74756b
  3. 704f7f66a54612e5b836e30a04941efaf1da0d8a6e0d177300a65b6a55783647
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.