Degen Protocol
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Session against the house

Blackjack

ended Play money · 79d8e537e7699f45325b493848cda4d4

Watch the replayThe handsThe rulesCheck it is fair

gbbagainst the house
Hands played
200
Wagered
2,180 play
Returned
2,070 play
Bettor's net
-110 play
Return
94.95%

Results by hand

Final
Hands
200
played
Pace
20.4/min
overall 20.8/min
Biggest swing
-20
Seat 1 · hand 7

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

SeatNetRateStreak
gbb-110-55.0 play/100won 2

Last hands

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

The hands

Newest first
#BetDealerHandsPaidChecked
5010J♥K♦ 205♠7♣3♦10♥ 25 bust00× the bet
4910Q♥Q♥ 208♥2♣7♣ 1700× the bet
4810A♣3♥10♥J♦ 24J♥K♠ 20202× the bet
47105♦3♠3♥7♣ 184♣J♣ 1400× the bet
46104♣10♠3♠ 17Q♠4♥ 1400× the bet
4510Q♦8♣ 18Q♠A♣ 21 blackjack252.5945× the bet
441010♣K♥ 209♦10♠ 1900× the bet
43103♥J♣6♥ 194♥J♠ 1400× the bet
4210Q♣9♦ 196♠9♦ 15 surrendered50.5× the bet
41109♦A♣ 205♣J♦10♠ 25 bust00× the bet
40106♥A♦ 17J♠5♦ 1500× the bet
39105♠9♣2♥9♦ 256♥5♠6♣ 17 doubled404× the bet
381010♥6♦5♥ 214♦5♥3♦7♣ 1900× the bet
37107♣K♠ 178♦J♥ 18202× the bet
36109♥5♣ 146♥K♣ 16 surrendered50.5× the bet
35105♣4♠8♣ 175♠4♥5♦ 14 doubled00× the bet
34103♣4♦A♥ 189♦4♥ 1300× the bet
33102♠10♠2♠6♣ 20A♣6♥4♥ 21202× the bet
32109♠6♣Q♣ 25A♦9♣ 20202× the bet
311010♣7♥ 179♥7♥ 16 surrendered50.5× the bet
3010K♥Q♥ 209♣9♦ 1800× the bet
29103♥3♦ 6A♠J♦ 21 blackjack252.5945× the bet
2810A♦J♦ 219♠9♣ 1800× the bet
2710Q♠8♣ 18J♦5♣ 15 surrendered50.5× the bet
2610K♦5♠A♠3♦ 19Q♣4♦5♦ 19101× the bet
25103♦5♠6♥9♠ 236♣K♠ 16202× the bet
2410K♦7♥ 17J♦5♠ 15 surrendered50.5× the bet
23109♥A♥ 203♣2♥8♦Q♦ 23 bust00× the bet
22109♦4♠ 139♦6♠9♥ 24 bust00× the bet
2110Q♣Q♦ 209♠2♥K♦ 21 doubled404× the bet
20107♥7♣6♥ 204♠5♦10♠ 1900× the bet
1910Q♠6♥2♥ 183♣K♣6♣ 19202× the bet
1810K♣J♥ 2010♥5♠ 15 surrendered50.5× the bet
17109♦7♦10♥ 268♣2♣K♥ 20 doubled404× the bet
16108♣3♦3♠5♥ 199♣A♦ 20202× the bet
151010♠6♠ 16A♠Q♦ 21 blackjack252.5945× the bet
14104♥7♣J♦ 214♦9♣ 1300× the bet
13102♥2♦6♣A♥ 21A♣9♠ 2000× the bet
12108♦A♦ 195♦10♥8♥ 23 bust00× the bet
11105♥K♥5♠ 203♦Q♠ 1300× the bet
10108♣5♠ 1310♥A♦ 21 blackjack252.5945× the bet
9106♠A♣ 1710♣9♥ 19202× the bet
8103♠8♠Q♠ 219♠6♠ 159♣7♦ 1600× the bet
7103♠4♦Q♠ 176♠3♦2♣ 11 doubled00× the bet
610K♥4♠A♦9♥ 245♠A♥6♦5♦ 17202× the bet
5102♣9♠J♣ 217♣10♦ 1700× the bet
4106♣K♥3♣ 193♦5♣9♣ 1700× the bet
3105♦10♦5♦ 209♣Q♣ 1900× the bet
210K♣2♥5♠ 178♦K♦ 18202× the bet
110A♠2♦ 13Q♠5♣Q♣ 25 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
86e39e55443322a1612039218e3e6e4ca81ca3f8d6f5aedcefe5d88080b0f281
Seed
bd27b9465429d0fbb5806561c4d9b53ef10fc913e66310dae6d332d06c1c27f1 SHA-256 of "degen.match.seed.v1", a zero byte and the 32 seed bytes is the seed hash.
Bettor's seed
ea30cf1513c74075ad68b864c27635ed
Commitment
Batch 67,554, Merkle root 85f3c30550f1274313d64e53593c14818650f371dd28a276f186a46e417e80eb. Recorded by Degen Protocol; on-chain publication is not available yet. See this batch and its Merkle tree
Merkle path
  1. d750c2e6571c42cf5afc555ae4f4511f2ca75e4e401756108195e719d0cb18a1
  2. 98e518b33e5dcd0942fb685b2f2d804e1cf5e008d12ab88a69cc96003e6a8126
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.