Degen Protocol
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Session against the house

Blackjack

ended Play money · b74e9166b1ee24b89100df75ae9a8342

Watch the replayThe handsThe rulesCheck it is fair

gbbagainst the house
Hands played
200
Wagered
2,210 play
Returned
2,120 play
Bettor's net
-90 play
Return
95.93%

Results by hand

Final
Hands
200
played
Pace
20.9/min
overall 21.1/min
Biggest swing
+30
Seat 1 · hand 143

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

SeatNetRateStreak
gbb-90-45.0 play/100lost 2

Last hands

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

The hands

Newest first
#BetDealerHandsPaidChecked
5010Q♣J♣ 20J♣5♥ 15 surrendered50.5× the bet
491010♥3♥K♥ 2310♣9♥ 19202× the bet
48105♦7♥A♠K♥ 237♥8♦ 15202× the bet
4710K♥Q♦ 208♦K♥ 1800× the bet
46105♣Q♣6♠ 216♥7♣ 1300× the bet
45107♠4♥4♥J♠ 25J♥J♥ 20202× the bet
44102♣5♥8♥5♠ 202♥4♠5♦Q♦ 21202× the bet
43107♥4♠Q♦ 214♦10♠6♦ 2000× the bet
42106♣2♦3♠A♥9♣ 215♣K♣ 1500× the bet
41106♦5♣2♦4♠ 17Q♦4♥ 1400× the bet
4010Q♦5♠4♥ 193♠4♥Q♠ 1700× the bet
39105♦6♣7♦ 184♣10♦ 1400× the bet
381010♠7♦ 179♠9♠ 18202× the bet
37104♣K♦6♠ 2010♦4♥ 1400× the bet
36102♣4♠5♣8♦ 197♠2♣2♠A♣7♠ 19101× the bet
351010♠7♥ 176♥10♥ 16 surrendered50.5× the bet
34106♥Q♥J♠ 26J♣10♦ 20202× the bet
3310Q♥K♣ 207♦6♥9♦ 22 bust00× the bet
3210Q♣J♦ 2010♠4♥9♦ 23 bust00× the bet
31109♥K♦ 197♠A♦K♣ 1800× the bet
30109♥3♣ 1210♣A♦ 21 blackjack252.5945× the bet
291010♠7♣ 17A♠2♠9♠10♠ 22 bust00× the bet
2810Q♣A♥ 21Q♥2♦ 1200× the bet
27108♣2♣ 106♠K♠9♥ 25 bust00× the bet
26104♥6♠3♣K♣ 234♥Q♠ 14202× the bet
2510K♦8♠ 186♣2♥6♠5♦ 19202× the bet
241010♣8♠ 18K♠5♠ 15 surrendered50.5× the bet
23102♣Q♣10♥ 2210♣10♦ 20202× the bet
22104♣J♦8♥ 222♥6♣A♠ 19202× the bet
2110J♥10♥ 208♦J♥ 1800× the bet
2010Q♦J♦ 209♣5♥Q♦ 24 bust00× the bet
191010♣7♣ 175♦Q♣ 15 surrendered50.5× the bet
1810A♥Q♣ 217♦4♠ 1100× the bet
171010♣3♠ 136♠K♥ 16 surrendered50.5× the bet
161010♠8♠ 189♥3♠J♠ 22 bust00× the bet
15108♠6♠ 143♠J♥Q♣ 23 bust00× the bet
1410A♦7♣ 182♣10♣4♠K♦ 26 bust00× the bet
13103♣K♠ 133♠9♦K♦ 22 bust00× the bet
12102♣7♥3♣A♣J♦ 234♦9♦ 13202× the bet
11106♠J♥K♥ 265♣2♠A♦ 18202× the bet
1010K♦9♦ 19K♣J♦ 20202× the bet
91010♦5♦ 15J♠6♥ 16 surrendered50.5× the bet
8102♦2♠9♣3♠10♦ 26Q♦10♦ 20202× the bet
7103♠K♣6♠ 197♦4♠Q♥ 21 doubled404× the bet
6106♠K♥J♣ 264♠10♦ 14202× the bet
5107♦5♥ 123♥10♣J♠ 23 bust00× the bet
4104♥5♥3♠9♣ 219♠J♥ 199♦5♦ 1400× the bet
310A♠7♥ 1810♥10♣ 20202× the bet
2106♥8♠3♣ 17Q♥4♠ 1400× the bet
1105♦4♠5♥6♥ 207♣Q♣ 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
4d8b56488cd4240bdfad6fd55f6ca2b8c8bc6323664b273bc788cdbed4f06865
Seed
86c3c5f1c82ec4fe090c3d750cadd967cdc37423b7df4690f766ff3c35c3134e SHA-256 of "degen.match.seed.v1", a zero byte and the 32 seed bytes is the seed hash.
Bettor's seed
631ed93b7fdf8f452e5eaaf50dc30fa8
Commitment
Batch 72,442, Merkle root 131c20f8345f0d40951fa454c71fc7331368dccca6a4b82ec08ddd53f5d6b661. Recorded by Degen Protocol; on-chain publication is not available yet. See this batch and its Merkle tree
Merkle path
  1. 2ca2e036ce446d5cfb4e9aa05f10daf6baf475dfec4f03ba73b41096588b51b2
  2. ec5cbfa2491cb55f3eac91a8b2fc1627b9be487bae8bb4315ecc62254fafcd25
  3. 6a6db40d010f255d96fec9bc5b07eb43ba3607d7de366ca6aa1b4fa5d10578e5
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.