Degen Protocol
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Session against the house

Blackjack

ended Play money · b230edd88d0fe807ce67516a1cdedda4

Watch the replayThe handsThe rulesCheck it is fair

gbbagainst the house
Hands played
200
Wagered
2,250 play
Returned
2,355 play
Bettor's net
+105 play
Return
104.67%

Results by hand

Final
Hands
200
played
Pace
22.1/min
overall 21.4/min
Biggest swing
-30
Seat 1 · hand 120

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

SeatNetRateStreak
gbb+105+52.5 play/100won 1

Last hands

  1. 200Seat 1+20
  2. 199Even0
  3. 198Seat 1+15
  4. 197Even0
  5. 196Even0
  6. 195Even0
  7. 194Seat 1+10
  8. 193Even0
  9. 192Seat 1+10
  10. 191Seat 1+10
  11. 190Seat 1+10
  12. 189Even0

The hands

Newest first
#BetDealerHandsPaidChecked
50105♠J♣3♥ 18K♣4♠ 1400× the bet
491010♠K♥ 204♦J♥3♣ 1700× the bet
4810J♦6♠ 16A♣Q♠ 21 blackjack252.5945× the bet
47108♥10♥ 188♦A♣ 19202× the bet
4610Q♣9♥ 199♦K♣ 19101× the bet
4510A♥2♣4♣ 1710♥9♠ 19202× the bet
44107♦6♣ 134♠2♦4♠4♣10♣ 24 bust00× the bet
43106♦6♦7♥ 195♦Q♦ 1500× the bet
4210K♥10♠ 203♦5♦Q♠ 1800× the bet
411010♦10♦ 20Q♠Q♠ 20101× the bet
4010Q♥5♣4♠ 197♦5♠8♦ 20202× the bet
39106♠8♥9♣ 23K♥8♥ 18202× the bet
38105♣8♣5♣ 18Q♦5♠ 1500× the bet
37109♣4♣3♥6♠ 228♠K♠ 18202× the bet
36103♠K♦Q♠ 239♦K♦ 19202× the bet
3510Q♣J♥ 205♠K♠ 15 surrendered50.5× the bet
3410A♦2♥ 136♥6♦K♥ 22 bust00× the bet
33106♦A♣ 177♦6♣ 137♦J♥ 17101× the bet
32103♠J♦2♣3♠ 189♣6♠ 1500× the bet
31108♥2♠9♥ 195♥5♥A♥ 21 doubled404× the bet
3010K♦2♦ 128♥2♥2♣A♦9♥ 22 bust00× the bet
29102♠6♥J♠ 1810♣8♥ 18101× the bet
28107♣3♦J♦ 20Q♣Q♠ 20101× the bet
27107♥J♥ 17J♥5♥A♠K♦ 26 bust00× the bet
26106♦6♣7♥ 19J♠K♥ 20202× the bet
25103♠9♥A♣2♣5♠ 204♣6♠Q♣ 20 doubled202× the bet
24105♠5♣6♥6♦ 225♥4♣6♦ 15 doubled404× the bet
23105♥7♣10♥ 22J♣3♠ 13202× the bet
2210K♠Q♠ 20Q♦A♦ 21 blackjack252.5945× the bet
21103♣8♠2♦3♦A♦ 1710♣7♠ 17101× the bet
20103♥4♦5♣2♦10♥ 24Q♥6♠ 16202× the bet
191010♠9♠ 194♣6♥K♣ 20202× the bet
1810A♣2♦ 134♦9♣Q♣ 23 bust00× the bet
17109♥K♥ 192♠8♣4♣ 14 doubled00× the bet
16106♦8♣10♦ 242♣3♦7♥ 12202× the bet
1510Q♠J♦ 20A♦J♣ 21A♠J♥ 21404× the bet
1410K♦8♥ 182♥A♣J♦6♠ 19202× the bet
1310Q♠8♠ 185♦A♣5♥ 21202× the bet
12104♦7♦7♦ 184♦10♠ 1400× the bet
11104♥3♥2♦A♠ 205♥10♣ 1500× the bet
1010K♣5♠ 15Q♣A♥ 21 blackjack252.5945× the bet
910K♠3♥3♣2♦ 18J♣3♣2♦4♣ 19202× the bet
8109♦J♠ 19K♥7♦ 1700× the bet
7104♠J♣Q♠ 24J♥10♦ 20202× the bet
6104♦K♠Q♥ 249♥8♠ 17202× the bet
5106♦5♣4♥6♦ 216♣2♠7♦ 1500× the bet
410A♠5♣ 16Q♣5♠K♣ 25 bust00× the bet
310K♣A♥ 2110♠4♣ 1400× the bet
2107♠J♦ 17J♥4♠10♠ 24 bust00× the bet
11010♦2♣Q♠ 223♦2♣A♦K♣2♠ 18202× 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
66b60e35057ee70be65c05158bc70a1d8f9bbade225495fc9191603aea9982ba
Seed
3c297243a8daec2581fd864d9be09fbc84e92e4ee0f3db1482cc38b3ca610b09 SHA-256 of "degen.match.seed.v1", a zero byte and the 32 seed bytes is the seed hash.
Bettor's seed
866af43783920eab29f80e00d007a391
Commitment
Batch 68,029, Merkle root bd296ff26e2a8a6b20b6e426b1c9ad03fc165d77b7a5a83fee61dfb5793e8eff. Recorded by Degen Protocol; on-chain publication is not available yet. See this batch and its Merkle tree
Merkle path
  1. 52bc07cd1ed09b75c2fe10b566ee49a31312e1af70c4c9a8b50d59a81bb44b6c
  2. 2b4cc213b33cdca8cf6d9eaee3b5b8c74674ece9405dde8f93bfdfbbe56c1a44
  3. f1f10ea8f037bd6fd3d065165676b0475fe79e4bdf7e15e7ac5380d320426c88
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.