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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
200109♥3♥2♥J♦ 249♥10♠ 19202× the bet
19910A♥K♣ 213♣7♦ 1000× the bet
198109♥K♥ 195♣J♣Q♥ 25 bust00× the bet
1971010♠A♦ 21Q♣9♦ 1900× the bet
1961010♠2♠J♥ 2210♣Q♠ 20202× the bet
19510K♦10♥ 20J♣8♣ 1800× the bet
194102♦6♣A♦ 195♠4♠7♦ 1600× the bet
193102♥4♦7♠5♦ 18K♥J♠ 20202× the bet
192102♥5♥9♥2♥ 183♠4♠3♠5♣ 1500× the bet
1911010♥Q♣ 208♦6♦3♦ 178♠7♦7♠ 22 bust00× the bet
190106♠J♥7♣ 23A♣8♦ 19202× the bet
189105♥A♥J♣7♣ 235♣4♣7♠ 16 doubled404× the bet
188105♥A♦3♠ 196♣4♦J♥ 20 doubled404× the bet
18710Q♥2♦2♠4♦ 186♣6♠5♠ 1700× the bet
186105♥10♥6♥ 2110♣5♣ 1500× the bet
185109♦K♥ 19Q♥6♥ 16 surrendered50.5× the bet
184106♥5♣9♥ 20A♣10♦ 21A♥Q♥ 21404× the bet
18310J♦A♠ 213♣4♥ 700× the bet
18210J♠4♥Q♥ 242♦6♣10♠ 18202× the bet
18110A♣K♣ 21A♣8♣ 1900× the bet
180105♥K♥10♣ 254♣9♦ 13202× the bet
17910Q♠Q♣ 207♦10♠ 1700× the bet
178102♦2♠Q♠6♦ 207♠A♦ 1800× the bet
177107♠3♠3♠6♥ 1910♣6♦2♠ 1800× the bet
17610K♠Q♦ 20A♥5♣9♣A♣2♥ 1800× the bet
17510K♥4♥7♣ 21J♣10♥ 2000× the bet
17410J♦J♦ 206♣4♠10♦ 20101× the bet
17310J♠J♦ 206♠9♦ 15 surrendered50.5× the bet
172105♥9♠K♥ 249♣8♥ 17202× the bet
17110Q♠3♦2♦6♥ 212♦9♣6♦ 17 doubled00× the bet
1701010♠4♥10♣ 24K♥Q♣ 20202× the bet
169105♥9♣ 14A♥Q♦ 21 blackjack252.5945× the bet
168104♦2♦4♠4♦9♣ 23J♣K♥ 20202× the bet
167109♥10♦ 194♠6♣J♦ 20 doubled404× the bet
16610K♠10♣ 20J♥A♥ 21 blackjack252.5945× the bet
165104♠6♦9♠ 192♠5♦Q♦ 1700× the bet
164102♦K♠3♣9♦ 2410♦K♦ 20202× the bet
16310J♥5♥7♥ 22K♣2♦5♥ 17202× the bet
16210Q♠4♦ 146♣K♥ 16 surrendered50.5× the bet
161108♦J♦ 182♥4♣10♥9♥ 25 bust00× the bet
160108♣4♦4♥J♣ 265♠5♠3♥ 13 doubled404× the bet
159105♣10♣K♥ 259♣A♣ 20202× the bet
158104♥7♥Q♣ 214♣K♦ 1400× the bet
157103♥2♣3♠6♦8♣ 222♣4♦9♣ 15202× the bet
156104♥2♥A♦ 177♣6♥ 1300× the bet
15510J♦J♣ 2010♥3♥5♦ 1800× the bet
154104♥Q♦Q♥ 243♠6♦7♠ 16 doubled404× the bet
153106♦A♥ 17Q♠J♣ 20202× the bet
1521010♥A♠ 21Q♠9♠ 1900× the bet
15110Q♠A♠ 215♠9♦ 1400× 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.