Degen Protocol
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Session against the house

Blackjack

ended Play money · f41fcaece32ea59310e7aa60f0352093

Watch the replayThe handsThe rulesCheck it is fair

gbbagainst the house
Hands played
200
Wagered
2,290 play
Returned
2,110 play
Bettor's net
-180 play
Return
92.14%

Results by hand

Final
Hands
200
played
Pace
21.6/min
overall 21.1/min
Biggest swing
-40
Seat 1 · hand 99

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

SeatNetRateStreak
gbb-180-90.0 play/100lost 1

Last hands

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

The hands

Newest first
#BetDealerHandsPaidChecked
50106♦K♦7♠ 234♣J♠ 14202× the bet
4910K♠Q♣ 202♠8♦3♠2♠7♠ 22 bust00× the bet
48104♦2♠ 6K♠A♠ 21 blackjack252.5945× the bet
47102♠7♠ 9A♦Q♠ 21 blackjack252.5945× the bet
46106♦8♥J♥ 249♦10♣ 19202× the bet
45105♦10♥ 15A♥K♠ 21 blackjack252.5945× the bet
44102♠J♠ 125♣7♠10♥ 22 bust00× the bet
43102♣9♣J♣ 213♦6♥9♦ 1800× the bet
42103♥K♦9♠ 223♣K♥ 13202× the bet
4110A♦8♥ 192♣A♠8♠ 21202× the bet
4010A♦J♠ 219♠5♥ 1400× the bet
39108♠5♥6♠ 199♠2♠10♠ 21 doubled404× the bet
3810A♠4♣ 15K♣2♣Q♠ 22 bust00× the bet
3710Q♠6♥ 167♠8♠ 15 surrendered50.5× the bet
3610J♦3♣ 135♣A♠2♣8♠7♣ 23 bust00× the bet
3510A♥9♣ 2010♥Q♦ 20101× the bet
34104♠5♣2♣8♦ 19J♦3♥ 1300× the bet
3310A♠5♦K♠6♥ 22K♣J♥ 20202× the bet
32107♦3♥3♥4♦ 177♥8♥4♥ 197♥3♦9♣ 19 doubled606× the bet
3110K♥5♥2♣ 179♣2♣Q♦ 21 doubled404× the bet
30109♥8♠ 1710♣5♣9♦ 24 bust00× the bet
29106♠6♦8♣ 208♦6♦ 1400× the bet
2810Q♣9♣ 197♠10♦ 1700× the bet
27105♠7♠2♥A♠6♣ 213♣8♠6♥ 17 doubled00× the bet
26105♠2♣6♠3♦6♥ 225♦K♦ 15202× the bet
25104♥2♦8♦2♥2♥ 18K♥9♠ 19202× the bet
2410Q♣9♠ 19J♠3♦8♦ 21202× the bet
23102♦8♦J♣ 209♣7♣ 1600× the bet
22105♥K♦4♦ 196♦9♣ 1500× the bet
21107♠9♥A♦ 17J♦10♠ 20202× the bet
20106♣10♠4♠ 209♠Q♦ 1900× the bet
19104♥4♣7♥K♣ 25J♥4♣ 14202× the bet
1810Q♦3♥ 137♦8♠ 15 surrendered50.5× the bet
1710Q♥3♥7♥ 20K♠8♥ 1800× the bet
16103♦7♠Q♣ 203♣Q♠ 1300× the bet
1510A♥Q♥ 21A♥9♠ 2000× the bet
1410Q♦3♥ 133♣6♥4♥J♠ 23 bust00× the bet
1310K♣5♣3♦ 186♣4♦8♦ 18101× the bet
12105♠A♥7♥5♦ 184♥10♠ 1400× the bet
11109♠3♣ 122♣4♠8♠10♦ 24 bust00× the bet
1010K♣Q♠ 207♠5♠5♦ 1700× the bet
910J♦10♦ 20A♥J♦ 21 blackjack252.5945× the bet
810K♦6♥2♠ 184♠6♦9♣ 19202× the bet
7105♣K♣5♣ 20K♦4♦ 1400× the bet
6102♥J♥Q♦ 224♦A♣Q♣ 15202× the bet
5108♥6♦ 147♠5♠J♦ 22 bust00× the bet
4103♥8♠3♣5♣ 199♣2♠J♣ 21 doubled404× the bet
310K♥3♠ 136♠J♥ 16 surrendered50.5× the bet
2104♦3♦8♦6♠ 21K♠4♦ 1400× the bet
1106♣A♣ 179♠5♥ 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
00f9422507175fd078772a577cb7cd4c28568ce6d0965bae147bf97e83b1302d
Seed
5f539dd44774aaea8e61861b3ef5838b8b054d79148edcf565281a986a3d7288 SHA-256 of "degen.match.seed.v1", a zero byte and the 32 seed bytes is the seed hash.
Bettor's seed
56541b8441a5c436087947ce5ee2234c
Commitment
Batch 71,556, Merkle root c05b14221782dc5e5d0d92197e642edb360381e3ffe62e89d848130b0dbe6c33. Recorded by Degen Protocol; on-chain publication is not available yet. See this batch and its Merkle tree
Merkle path
  1. 1b31d52adb776acbd0aea69ccc6134edf31cdfe889081fa96a407a08325b1bda
  2. 72adfa5f9aadd75472142cf233d003bf0b5ffa9757d8e3f3c000cca22f644058
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.