Degen Protocol
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Session against the house

Blackjack

ended Play money · 46473884fc2617d4d09fb742c1592dba

Watch the replayThe handsThe rulesCheck it is fair

gbbagainst the house
Hands played
200
Wagered
2,290 play
Returned
2,105 play
Bettor's net
-185 play
Return
91.92%

Results by hand

Final
Hands
200
played
Pace
17.5/min
overall 20.7/min
Biggest swing
+60
Seat 1 · hand 194

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

SeatNetRateStreak
gbb-185-92.5 play/100won 2

Last hands

  1. 200Seat 1+10
  2. 199Even0
  3. 198Seat 1+10
  4. 197Even0
  5. 196Even0
  6. 195Even0
  7. 194Seat 1+60
  8. 193Seat 1+10
  9. 192Even0
  10. 191Even0
  11. 190Seat 1+10
  12. 189Even0

The hands

Newest first
#BetDealerHandsPaidChecked
5010Q♥8♠ 18Q♠10♣ 20202× the bet
49103♦5♣7♠2♦ 179♦5♦ 1400× the bet
48102♥4♠2♥5♥3♥Q♣ 26K♠K♣ 20202× the bet
47104♣A♦5♥ 207♠J♦ 1700× the bet
4610J♣A♠ 21Q♥6♦ 1600× the bet
45107♣3♣10♦ 20K♥7♠ 1700× the bet
4410J♦K♠ 205♦Q♥ 15 surrendered50.5× the bet
4310A♣K♦ 214♣2♣ 600× the bet
42102♥9♦4♥J♦ 252♥4♣A♥5♣3♠ 15202× the bet
411010♥Q♠ 2010♥7♠ 1700× the bet
40104♥4♣4♥2♣J♠ 24Q♦3♠ 13202× the bet
39105♦3♠4♦3♦Q♥ 256♦K♦ 16202× the bet
3810J♦8♥ 187♣4♣3♠ 14 doubled00× the bet
371010♦A♠ 214♠K♥ 1400× the bet
36105♦6♣4♥K♣ 254♣J♦ 14202× the bet
35108♠6♣ 14A♦10♠ 21 blackjack252.5945× the bet
341010♦J♠ 204♥9♠Q♣ 23 bust00× the bet
33103♣Q♦6♥ 195♣5♥K♠ 20 doubled404× the bet
32104♣6♥J♦ 204♥7♦6♣ 17 doubled00× the bet
31105♦6♠2♦5♣ 18A♣9♠ 20202× the bet
30106♦2♣10♠ 186♠5♣7♥ 18 doubled6♥7♠ 13202× the bet
2910J♠Q♠ 204♠Q♦A♥A♠J♦ 26 bust00× the bet
28105♣8♥3♣A♠ 173♣Q♥ 133♠Q♣ 1300× the bet
27108♠6♣ 14K♠A♣ 21 blackjack252.5945× the bet
26105♠7♠2♦7♣ 218♦4♥ 1200× the bet
251010♥2♥4♠9♥ 25K♥Q♦ 20202× the bet
2410J♠A♠ 2110♥7♦ 1700× the bet
23105♠Q♠2♥ 175♠6♥7♥ 18 doubled404× the bet
22103♦8♥10♥ 214♣5♦J♣ 19 doubled00× the bet
21109♠7♠6♠ 224♠7♥2♦ 13 doubled404× the bet
2010J♦A♠ 215♣6♦ 1100× the bet
19107♣J♥ 178♣3♠6♣ 17 doubled202× the bet
18105♣3♥K♠ 1810♣8♠ 18101× the bet
17109♣8♦ 179♠8♣ 17101× the bet
16103♠Q♦J♦ 239♥6♥ 15202× the bet
15103♣Q♦7♥ 202♦J♦4♠ 1600× the bet
14106♦7♣ 13K♣A♣ 21 blackjack252.5945× the bet
13107♥3♠ 106♠Q♣K♥ 26 bust00× the bet
121010♥A♠ 21K♦Q♥ 2000× the bet
11106♠5♦10♦ 21K♠J♣ 2000× the bet
10103♣9♦4♦3♣ 19J♥7♦ 1700× the bet
9102♣J♥8♦ 207♠Q♥ 1700× the bet
8103♠4♠A♦ 187♥9♥ 1600× the bet
7105♣6♣8♦ 1910♦Q♠ 20202× the bet
6104♣K♣Q♣ 243♠K♣ 13202× the bet
510K♠5♣A♦Q♥ 26A♥9♠ 20202× the bet
4107♦7♠9♣ 23K♥6♠5♥ 21202× the bet
31010♥4♦10♥ 24K♠8♦ 18202× the bet
210J♦Q♦ 20Q♥6♣ 16 surrendered50.5× the bet
1108♥Q♣ 1810♣7♦ 1700× 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
70c6f2b83088e8579928739fd7c4cd43f8e009d139d3a9ffbf7c73d74fb3d325
Seed
ae9fd7d3d46f6f876150fdbc4278c182c658da14d2e8428f479efa9d2236af7c SHA-256 of "degen.match.seed.v1", a zero byte and the 32 seed bytes is the seed hash.
Bettor's seed
676b6435e57a5b9b050b722301ed16ba
Commitment
Batch 69,370, Merkle root 419c9ddd6fe496feebd00804d77d9e9ac56491896ae5bd378b44223d9c17677f. Recorded by Degen Protocol; on-chain publication is not available yet. See this batch and its Merkle tree
Merkle path
  1. 555f4cb0f6c852811f25e96ace9e6a6d64638d1013188431460c5a2ca09f88db
  2. bf1c0e8227f572e546418b60caf352052900d6f743854ade7636f2b90efe73be
  3. b178fc6c282c45c30cd35942a5016ee8179abefd8eacdc259f9665a52aee0038
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.