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Degen Protocol
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Session against the house

Blackjack

ended Play money · b3316e09cfb37caa888efae00ae1e483

Watch the replayThe handsThe rulesCheck it is fair

gbbagainst the house
Hands played
200
Wagered
2,260 play
Returned
2,160 play
Bettor's net
-100 play
Return
95.58%

Results by hand

Final
Hands
200
played
Pace
20.4/min
overall 20.9/min
Biggest swing
-30
Seat 1 · hand 34

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

SeatNetRateStreak
gbb-100-50.0 play/100won 1

Last hands

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

The hands

Newest first
#BetDealerHandsPaidChecked
100108♣7♣J♦ 25J♦10♥ 20202× the bet
99105♥8♣10♠ 23K♥6♦ 16202× the bet
9810Q♥6♣ 162♦A♥K♣J♠ 23 bust00× the bet
97107♦A♠ 185♠10♣5♥ 20202× the bet
96103♦4♣K♣ 178♣Q♣ 18202× the bet
9510J♠9♥ 193♦10♦8♠ 21202× the bet
941010♦8♣ 185♦7♠8♥ 20202× the bet
9310J♣A♦ 2110♣4♣ 1400× the bet
92102♥8♠K♥ 205♦7♠4♥ 1600× the bet
91106♠K♣10♥ 26Q♣Q♠ 20202× the bet
90103♠2♦4♦K♦ 196♦4♦4♠ 14 doubled00× the bet
8910Q♣A♥ 217♦5♥ 1200× the bet
881010♠J♣ 20Q♠3♥J♣ 23 bust00× the bet
87105♠8♥6♦ 1910♥10♠ 20202× the bet
861010♣K♥ 206♣6♠K♥ 22 bust00× the bet
85103♣Q♦6♠ 198♦J♥ 1800× the bet
84107♣A♠ 188♥A♥ 19202× the bet
831010♠5♣2♥ 17A♣7♦4♠9♦ 21202× the bet
82104♦K♥2♣5♣ 21K♠J♠ 2000× the bet
811010♣5♣ 15A♦2♠Q♦Q♠ 23 bust00× the bet
80106♠5♦Q♥ 215♣9♦ 1400× the bet
7910K♦10♣ 209♣4♣2♠8♣ 23 bust00× the bet
78109♥J♠ 19J♥J♦ 20202× the bet
7710A♣A♣4♣4♠ 202♥A♥4♥Q♣ 1700× the bet
76102♦7♠3♣5♥ 173♠J♣ 1300× the bet
7510A♠7♦ 182♣2♣3♥6♠Q♣ 23 bust00× the bet
74103♠K♠10♦ 23J♠10♥ 20202× the bet
73106♥5♠4♦10♦ 259♣10♦ 19202× the bet
7210A♣9♠ 209♦9♣ 1800× the bet
71105♦K♦K♦ 25J♦4♠ 14202× the bet
7010J♣8♣ 182♣6♠K♠ 18101× the bet
691010♠10♣ 20J♣5♥ 15 surrendered50.5× the bet
68109♥7♥3♣ 195♦2♣6♦8♥ 21202× the bet
6710J♣A♥ 214♥4♦ 800× the bet
6610J♦6♥6♥ 22K♣Q♦ 20202× the bet
6510A♣A♠7♥ 198♦6♠J♥ 24 bust8♣J♣ 1800× the bet
64105♣J♣J♦ 256♥10♦ 16202× the bet
6310Q♦A♠ 213♠A♣ 1400× the bet
62103♦9♣ 12A♥10♠ 21 blackjack252.5945× the bet
6110Q♦J♣ 207♠7♣2♥5♠ 21202× the bet
60108♠2♥9♥ 196♦5♣2♣ 13 doubled00× the bet
59107♥Q♣ 177♥2♠A♠ 20202× the bet
5810J♦5♦J♣ 255♠4♠9♥ 18202× the bet
5710A♣Q♦ 21Q♦2♣ 1200× the bet
56108♠3♦5♥3♣ 19K♣J♠ 20202× the bet
5510Q♥2♣4♠3♠ 19Q♠9♣ 19101× the bet
54105♦K♣3♣ 183♦A♦Q♠ 14 doubled00× the bet
5310Q♣2♥4♥7♠ 23Q♥J♠ 20202× the bet
52105♣9♣10♣ 2410♣K♣ 20202× the bet
5110A♦A♣6♠ 188♠6♦7♥ 21202× 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
34f9e5d1095ab9171c67f0af08635014197a4c30a41059d444133f2021f15dcb
Seed
101ca63269ddfeda8761cc4a9633b593fe5851fe90d1f1e24f1f643ca27f80d0 SHA-256 of "degen.match.seed.v1", a zero byte and the 32 seed bytes is the seed hash.
Bettor's seed
6c6d36f71e552ad5d8c9dea0e74c78e5
Commitment
Batch 63,364, Merkle root d1f705cf5dd209186bb8c6776ec02eb73291bae4b0aead20fea5a791589bc779. Recorded by Degen Protocol, not on a chain. See this batch and its Merkle tree
Merkle path
  1. 31098fc97b4f9b6e919992247895f4ce589fc7f4f4e7194f7dbdc3edb5ff9858
  2. 78792d527c45d56314b32e61a859f0baf2c5f58ae18f1e57bc1a3ca761e491f9
  3. 33aa0e7d09da565cb5e60bd9c2a04824076b0046035c7c801f9bbef66cbf5886
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.