Degen Protocol
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Session against the house

Blackjack

ended Play money · af5b81620ed6e8299520e73121c48c8f

Watch the replayThe handsThe rulesCheck it is fair

gbbagainst the house
Hands played
200
Wagered
2,280 play
Returned
2,310 play
Bettor's net
+30 play
Return
101.32%

Results by hand

Final
Hands
200
played
Pace
22.2/min
overall 21.3/min
Biggest swing
-40
Seat 1 · hand 132

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

SeatNetRateStreak
gbb+30+15.0 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. 193Even0
  9. 192Seat 1+15
  10. 191Seat 1+10
  11. 190Even0
  12. 189Seat 1+10

The hands

Newest first
#BetDealerHandsPaidChecked
50108♠5♠5♥ 185♥9♥5♠ 19202× the bet
4910A♣10♥ 2110♦10♣ 2000× the bet
4810Q♦9♣ 193♥4♥2♠3♦5♣ 1700× the bet
47109♦9♣ 189♦J♠ 19202× the bet
4610A♦3♥ 14Q♥2♦J♣ 22 bust00× the bet
4510A♦2♣2♥4♦ 194♣K♠6♥ 20202× the bet
4410K♥9♣ 196♣4♠9♠ 19101× the bet
43106♦A♠ 1710♦6♥ 1600× the bet
4210Q♦9♦ 19A♣10♠ 21 blackjack252.5945× the bet
41107♣3♦9♠ 198♥A♦ 19101× the bet
4010J♣2♣ 12K♥A♠ 21 blackjack252.5945× the bet
39108♥10♥ 189♥4♥4♦ 1700× the bet
3810A♣10♥ 219♣2♣ 1100× the bet
37106♠7♦A♥2♣5♦ 218♦10♣ 1800× the bet
36104♥A♣J♠3♥ 18Q♥2♣ 1200× the bet
351010♦2♥7♠ 198♥9♣ 1700× the bet
34104♣9♣J♣ 23A♠2♠6♠ 19202× the bet
33102♠K♥8♣ 207♦J♠ 1700× the bet
3210Q♣10♥ 203♦A♣J♦J♠ 24 bust00× the bet
31109♦K♣ 19J♥8♣ 1800× the bet
30105♦5♦5♦4♥ 193♥5♣2♠6♥ 1600× the bet
2910A♣3♥9♦7♠ 204♣6♦8♠ 1800× the bet
28108♠J♥ 188♣6♦Q♠ 24 bust00× the bet
27102♣10♠Q♥ 226♥7♠ 13202× the bet
26106♣J♥8♣ 24A♦6♥10♥ 17 doubled404× the bet
2510Q♣Q♣ 202♠6♠J♠ 1800× the bet
24103♥J♣4♣ 17A♠4♣9♣ 1400× the bet
2310K♠10♠ 205♣10♣ 15 surrendered50.5× the bet
22105♣5♠J♠ 203♣4♦Q♣ 1700× the bet
21107♥5♥4♥9♥ 2510♥K♠ 20202× the bet
201010♠5♦ 1510♠A♣ 21 blackjack252.5945× the bet
1910K♥A♠ 215♠8♣ 1300× the bet
18107♠K♦ 177♣10♥ 17101× the bet
17108♠5♦5♣ 185♥4♥Q♣ 19202× the bet
16109♦3♥ 125♣9♥K♥ 24 bust00× the bet
15102♠A♥Q♠Q♠ 232♠A♣Q♣ 13202× the bet
14109♣6♥ 15A♠J♦ 21 blackjack252.5945× the bet
13106♠K♣K♠ 268♥10♣ 18202× the bet
12105♣6♦J♥ 217♥2♠J♦ 19 doubled00× the bet
1110A♥Q♥ 215♥4♥ 900× the bet
10106♦2♦9♦ 17K♣6♦ 1600× the bet
9103♥5♣9♦ 17A♠6♠Q♣ 17 doubled202× the bet
810Q♠3♣ 13K♥4♠8♦ 22 bust00× the bet
7102♦2♣7♣A♦4♥7♥ 233♠Q♠ 13202× the bet
6103♥K♠2♠8♣ 236♥K♥ 16202× the bet
5102♦A♥2♣K♦10♦ 257♦2♠J♣ 19202× the bet
4105♠9♣Q♥ 242♠Q♠ 12202× the bet
3104♠3♣Q♠ 172♥9♠7♣ 18 doubled404× the bet
210A♣A♠ 123♠J♥K♣ 23 bust00× the bet
1108♦4♦9♥ 212♥A♣7♠ 2000× 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
fb5a70d543053a5cd8689c3cfd85380018803e0a8783aad32e13d8d28c50b21b
Seed
42b03a9eeded0e6f0e4f766be75b7e86ec24118f8e3891689922c78aa00c871f SHA-256 of "degen.match.seed.v1", a zero byte and the 32 seed bytes is the seed hash.
Bettor's seed
2e1de4672af4adab92b7fd28e51a98bb
Commitment
Batch 69,706, Merkle root b07cbbd8aed04254671ae9258a9e096f2374234739350ebf116b7d493b101663. Recorded by Degen Protocol; on-chain publication is not available yet. See this batch and its Merkle tree
Merkle path
  1. a5f7cbe9055287f1dad04d63b9ac02834b3ee85075f001cb77a985ec8aeabcb9
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.