Degen Protocol
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Session against the house

Blackjack

ended Play money · e8c7f455af65f883416210908e4acdca

Watch the replayThe handsThe rulesCheck it is fair

gbbagainst the house
Hands played
200
Wagered
2,250 play
Returned
2,380 play
Bettor's net
+130 play
Return
105.78%

Results by hand

Final
Hands
200
played
Pace
19.1/min
overall 21.5/min
Biggest swing
-30
Seat 1 · hand 158

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

SeatNetRateStreak
gbb+130+65.0 play/100lost 1

Last hands

  1. 200Even0
  2. 199Seat 1+10
  3. 198Seat 1+15
  4. 197Even0
  5. 196Even0
  6. 195Seat 1+10
  7. 194Even0
  8. 193Seat 1+10
  9. 192Seat 1+15
  10. 191Even0
  11. 190Even0
  12. 189Even0

The hands

Newest first
#BetDealerHandsPaidChecked
5010K♥7♥ 17J♦7♠ 17101× the bet
4910J♠Q♦ 208♠4♦Q♦ 22 bust00× the bet
481010♠2♦6♦ 18J♥8♠ 18101× the bet
47109♦K♥ 199♠7♠ 16 surrendered50.5× the bet
46107♠10♠ 174♦2♠10♥2♥ 18202× the bet
4510J♥5♥ 157♣5♣J♥ 22 bust00× the bet
4410A♠Q♠ 21Q♣6♠ 1600× the bet
4310J♣2♠3♦A♠9♦ 252♣9♥5♦ 16 doubled404× the bet
42105♣K♣K♠ 25K♥4♦ 14202× the bet
4110A♥6♠ 17K♣K♥ 20202× the bet
4010J♠A♣ 2110♥Q♣ 2000× the bet
39102♣5♣7♠8♠ 224♣2♥Q♥ 16202× the bet
38104♠A♣9♣Q♦ 248♦10♠ 18202× the bet
37107♣3♠5♠3♣ 184♦3♠2♦6♥6♥ 21202× the bet
3610Q♠7♠ 1710♠7♣ 17101× the bet
35104♦Q♠6♣ 20Q♦J♦ 20101× the bet
3410A♣10♦ 212♠8♣ 1000× the bet
3310A♦J♣ 214♠7♦ 1100× the bet
3210Q♥8♦ 188♥A♠ 19202× the bet
31103♦4♠9♥7♣ 232♣3♠J♠ 15202× the bet
30106♦A♦ 178♥5♣ 1300× the bet
29103♦A♦A♦9♠2♥7♠ 2310♣Q♦ 20202× the bet
2810K♠9♣ 194♠10♠9♠ 23 bust00× the bet
27104♠J♥10♠ 2410♦6♦ 16202× the bet
2610Q♠4♠ 145♦Q♦ 15 surrendered50.5× the bet
25102♥K♥9♠ 213♣K♣ 1300× the bet
24103♣J♠7♣ 206♦J♣ 1600× the bet
23104♠3♠10♣ 173♦8♠7♥ 18 doubled404× the bet
22109♥2♥2♦2♠K♠ 256♥4♠2♠ 12 doubled404× the bet
2110A♣7♥ 18A♠K♦ 21 blackjack252.5945× the bet
20103♥3♥A♥ 173♦Q♠ 1300× the bet
19105♠Q♥9♥ 249♦J♦ 19202× the bet
18103♦6♥6♥J♠ 258♣A♣ 19202× the bet
17103♠3♠Q♣3♣ 19Q♠8♣ 1800× the bet
16106♦10♦A♦ 172♦A♠9♦ 12 doubled00× the bet
15107♥8♣4♦ 194♣2♦3♥5♦6♠ 20202× the bet
141010♣Q♣ 207♠K♦ 1700× the bet
13104♣A♦Q♦9♥ 24K♣4♦ 14202× the bet
1210K♣4♠ 146♣J♠ 16 surrendered50.5× the bet
11106♠8♠Q♦ 246♥5♠8♥ 19 doubled404× the bet
10109♠6♣ 156♣7♥3♥6♦ 22 bust00× the bet
91010♣3♣A♥6♥ 209♠10♥ 1900× the bet
8103♥7♥J♠ 20J♥K♠ 20101× the bet
7104♦6♥7♥ 17Q♠K♠ 20202× the bet
6105♠10♠A♥9♣ 25K♦K♣ 20202× the bet
510A♣Q♠ 21K♣J♥ 2000× the bet
4108♦6♣7♦ 21J♠4♥6♦ 2000× the bet
3106♠A♣ 176♣4♦J♥ 20 doubled6♠4♠3♠ 13 doubled404× the bet
210Q♣5♠7♦ 22J♦2♦3♠A♥2♣ 18202× the bet
1107♥K♦ 1710♠J♥ 20202× 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
983758b9659030e380dd6d31812eb688d58427a3f21ee4ceba1e183638ed1b8f
Seed
cf30d69970303d91427893eae882f1cc521700715cb861033a566d89400d9f61 SHA-256 of "degen.match.seed.v1", a zero byte and the 32 seed bytes is the seed hash.
Bettor's seed
132e7bab9532bf4455cd86d3cd85c009
Commitment
Batch 72,469, Merkle root 36f4cb2b7198f7b75d0e2b8c00205231458b672d9b470331084a7f90562412c5. Recorded by Degen Protocol; on-chain publication is not available yet. See this batch and its Merkle tree
Merkle path
  1. 8cf9c24a6e54786b90333ba1469954245459605ebe3e0be164e0de2b75299d81
  2. 8c904ea4567902ca5aeae0f2b14328b77de7d06c6c4f9dfff7afba30c0cfc8a2
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.