Degen Protocol
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Session against the house

Blackjack

ended Play money · 33266afcdddcfe979eeb322b16d76fc9

Watch the replayThe handsThe rulesCheck it is fair

gbbagainst the house
Hands played
200
Wagered
2,340 play
Returned
2,420 play
Bettor's net
+80 play
Return
103.42%

Results by hand

Final
Hands
200
played
Pace
20.7/min
overall 19.5/min
Biggest swing
+30
Seat 1 · hand 89

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

SeatNetRateStreak
gbb+80+40.0 play/100won 1

Last hands

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

The hands

Newest first
#BetDealerHandsPaidChecked
50106♥10♥8♦ 243♣7♣10♥ 20 doubled404× the bet
49104♠8♦A♦10♦ 233♥4♣7♠ 14202× the bet
4810Q♥10♦ 208♠4♠3♠10♦ 25 bust00× the bet
471010♦7♦ 17A♠2♣10♠10♦ 23 bust00× the bet
4610A♠2♦A♦6♦ 2010♣2♥7♠ 1900× the bet
45108♥6♥ 143♥4♣7♣A♥J♣ 25 bust00× the bet
44103♣2♦K♣10♣ 258♠4♥9♦ 21202× the bet
4310Q♥J♣ 208♦7♦ 15 surrendered50.5× the bet
42108♣6♠J♦ 242♦2♣7♣A♠7♥ 19202× the bet
411010♦2♥9♦ 21Q♠7♥ 1700× the bet
40108♣10♥ 18K♣2♦4♠9♣ 25 bust00× the bet
3910Q♠4♠2♦K♣ 268♣Q♠ 18202× the bet
3810A♠3♠10♠2♥9♠ 253♦A♦K♦7♣ 21202× the bet
37107♠5♠ 1210♠A♦ 21 blackjack252.5945× the bet
36109♠10♦ 1910♦6♣ 16 surrendered50.5× the bet
35102♦10♣J♥ 225♠7♥7♣ 19202× the bet
3410J♥8♦ 1810♦A♠ 21 blackjack252.5945× the bet
3310J♥7♣ 17A♣8♣ 19202× the bet
3210K♠3♥Q♠ 238♣10♦ 18202× the bet
3110J♦2♣ 12Q♥2♠4♣10♣ 26 bust00× the bet
30102♦J♦3♥5♣ 20Q♠7♠ 1700× the bet
29103♦6♠Q♠ 1910♣K♥ 20202× the bet
28105♠2♦10♥ 177♦4♠2♥ 13 doubled00× the bet
2710A♠8♠ 19A♠5♣2♦5♥Q♥ 23 bust00× the bet
2610K♦A♥ 21A♠7♠ 1800× the bet
25109♣6♠8♣ 232♥J♦8♥ 20202× the bet
24106♥4♣5♦4♥ 1910♦J♦ 20202× the bet
23102♥7♦Q♦ 1910♣4♣ 1400× the bet
2210K♥10♣ 20A♦2♦8♠ 21202× the bet
21107♦10♣ 175♥2♠2♥6♦6♥ 21202× the bet
20102♦7♥10♣ 196♠4♦J♥ 20 doubled404× the bet
191010♣3♥3♠K♣ 2610♣3♠6♣ 19202× the bet
1810Q♠8♠ 18Q♦5♦ 15 surrendered50.5× the bet
17105♣5♣10♦ 208♣4♥ 1200× the bet
161010♣2♥ 128♣6♥9♣ 23 bust00× the bet
1510Q♦2♦A♥4♥ 1710♣Q♣ 20202× the bet
1410Q♥9♠ 19A♦3♥A♣6♦ 21202× the bet
131010♣9♠ 195♦7♥A♦10♦ 23 bust00× the bet
1210J♥10♠ 202♣Q♦3♦J♥ 25 bust00× the bet
11108♣5♥7♦ 208♣10♥ 188♠6♣J♠ 24 bust00× the bet
10106♣5♥Q♠ 217♦2♣7♥ 16 doubled00× the bet
910A♣J♥ 217♦6♣ 1300× the bet
8104♥J♣5♦ 1910♠5♦ 1500× the bet
7105♠7♠7♦ 19K♠2♣ 1200× the bet
6103♠6♦2♣A♠J♥ 227♠6♦ 13202× the bet
5103♦8♦6♣ 17A♦7♣5♠ 13 doubled00× the bet
410A♥10♣ 215♦Q♣ 1500× the bet
310J♥7♣ 17A♠9♥ 20202× the bet
2107♦6♠A♦J♦ 24A♠4♣A♠5♠ 21202× the bet
1107♦J♥ 175♠9♦Q♠ 24 bust00× 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
c7c8612f7215c2a4a372eb2123cbd422f4d285c7f8bb6ae9d3a3f01c05c567a3
Seed
a884a53694867e908ddacf65e1450c4af0282fdc96dffdb16bec5f3deb380ca1 SHA-256 of "degen.match.seed.v1", a zero byte and the 32 seed bytes is the seed hash.
Bettor's seed
47441eab0a8ab9fca8e5f2cf261cfbbf
Commitment
Batch 65,539, Merkle root ebace2d592a5948d1135297162df51f4da7a3e094d59814cd649fd0d3ac315ad. Recorded by Degen Protocol; on-chain publication is not available yet. See this batch and its Merkle tree
Merkle path
  1. e13d0d251759f2fdff2842fdb9db11800e48477af24ccb9913650e0707a2fbe2
  2. 46b210f9071e98dfa9b3e2f752d0f2f5c7ed49ad0165fa131bf514a1f0f89fa3
  3. 2159521ce187ac928c3051dc63a009af34ca7c1431f7bd37c65fc1647acccffe
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.