Degen Protocol
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Session against the house

Blackjack

ended Play money · 8dbe77171c40711e43d4c80e1b5fd682

Watch the replayThe handsThe rulesCheck it is fair

gbbagainst the house
Hands played
200
Wagered
2,310 play
Returned
2,520 play
Bettor's net
+210 play
Return
109.09%

Results by hand

Final
Hands
200
played
Pace
20.3/min
overall 20.8/min
Biggest swing
+40
Seat 1 · hand 51

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

SeatNetRateStreak
gbb+210+105.0 play/100won 1

Last hands

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

The hands

Newest first
#BetDealerHandsPaidChecked
5010K♥J♠ 204♠8♦3♣2♦ 1700× the bet
49103♠8♠9♠ 208♦9♠ 1700× the bet
4810A♥5♥ 166♣7♠9♠ 22 bust00× the bet
47103♠10♠K♣ 235♣A♦9♦ 15202× the bet
461010♦5♦7♠ 224♦7♦J♠ 21 doubled404× the bet
4510J♣A♠ 21K♦Q♣ 2000× the bet
44108♠9♠ 179♥A♣ 20202× the bet
431010♦10♠ 209♠4♦4♠ 1700× the bet
4210K♥J♣ 20K♣6♣ 16 surrendered50.5× the bet
41105♦3♦2♣6♦Q♥ 267♣2♠6♦ 15 doubled404× the bet
40105♣5♣3♦6♣ 194♦A♠3♦ 18 doubled00× the bet
3910J♠9♠ 192♥9♥9♥ 20 doubled404× the bet
381010♠3♥ 132♣J♥3♦10♥ 25 bust00× the bet
37103♥3♥7♥A♦K♦ 24Q♥J♠ 20202× the bet
36109♦A♥ 20K♠10♦ 20101× the bet
351010♣8♣ 188♥J♦ 18101× the bet
34105♥Q♠9♦ 242♥7♣K♥ 19 doubled404× the bet
33105♠8♣5♠ 18J♥7♣ 1700× the bet
32104♣10♥6♠ 205♥4♣4♣ 13 doubled00× the bet
31108♥4♠ 123♣A♥9♥K♣ 23 bust00× the bet
30105♣8♥6♣ 19K♥9♣ 19101× the bet
29107♥Q♥ 173♥4♠Q♠ 17101× the bet
28109♦K♠ 194♥A♣2♥7♥3♣ 1700× the bet
27109♠6♠ 15A♥Q♥ 21 blackjack252.5945× the bet
2610A♥10♥ 217♠J♥ 1700× the bet
25103♥K♥3♣J♦ 268♥3♣J♠ 21 doubled404× the bet
2410Q♦3♦ 13K♣A♦ 21 blackjack252.5945× the bet
2310A♣7♣ 18K♥9♣ 19202× the bet
2210Q♣2♠5♠ 17J♣J♥ 20202× the bet
2110Q♠7♦ 178♥9♦ 17101× the bet
2010Q♣A♣ 214♥9♣ 1300× the bet
19104♠Q♠4♥ 18A♣4♠4♠ 19202× the bet
18103♣Q♦ 13Q♠A♠ 21 blackjack252.5945× the bet
1710J♥5♥ 15A♥Q♣ 21 blackjack252.5945× the bet
1610Q♥K♣ 202♦K♠7♣ 1900× the bet
1510Q♦K♦ 203♠6♠K♦ 1900× the bet
1410K♦2♦K♣ 225♣2♠Q♦ 17202× the bet
1310J♥10♦ 204♠7♥10♠ 21 doubled404× the bet
12102♦7♦A♥ 209♣2♣6♦ 17 doubled00× the bet
11107♥A♣ 18A♦8♦ 19202× the bet
10102♥9♠J♦ 21A♠6♦4♣ 21101× the bet
910Q♥5♥ 15A♦3♦K♠8♣ 22 bust00× the bet
8103♣9♦7♠ 1910♣8♠ 1800× the bet
7109♠J♥ 199♥J♥ 19101× the bet
6102♠J♥8♠ 20K♥Q♣ 20101× the bet
510Q♥9♣ 199♣3♦7♣ 19101× the bet
4109♦8♠ 173♦9♣8♣ 20202× the bet
3103♥7♦Q♠ 20Q♥2♦8♦ 20101× the bet
2105♥5♥6♥7♥ 23Q♥K♣ 20202× the bet
1102♦K♠4♥A♦ 177♥A♦ 18202× 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
94260527cec887ef935543e5a5522faf35a2de3057e8017e43cb9f52ab29523a
Seed
31eeba0d4964000b9bdf89dd84d9676a0ac5f8a976e6e85ab3c4453cb0d19a33 SHA-256 of "degen.match.seed.v1", a zero byte and the 32 seed bytes is the seed hash.
Bettor's seed
e217a5c056e1d92f30b4379e5907922f
Commitment
Batch 70,134, Merkle root c60164a20638917b717c6533380d51bdce8cb836116bb196ad5648d1f951013a. Recorded by Degen Protocol; on-chain publication is not available yet. See this batch and its Merkle tree
Merkle path
  1. 3755a07336c8c5decba9b670e1e1d117f9d6308b66c03f33529adff91bb83065
  2. 583a3370c5eb05b2d9aa32429d8d9c87eb9daa7a38247842ad59f99c9456cdd2
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.