Degen Protocol
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Session against the house

Blackjack

ended Play money · 16ed90c363cb849c9fd04084ccbab7a3

Watch the replayThe handsThe rulesCheck it is fair

gbbagainst the house
Hands played
200
Wagered
2,260 play
Returned
2,285 play
Bettor's net
+25 play
Return
101.11%

Results by hand

Final
Hands
200
played
Pace
21.5/min
overall 20.9/min
Biggest swing
+40
Seat 1 · hand 200

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

SeatNetRateStreak
gbb+25+12.5 play/100won 1

Last hands

  1. 200Seat 1+40
  2. 199Even0
  3. 198Even0
  4. 197Even0
  5. 196Seat 1+10
  6. 195Even0
  7. 194Even0
  8. 193Seat 1+10
  9. 192Even0
  10. 191Even0
  11. 190Seat 1+10
  12. 189Even0

The hands

Newest first
#BetDealerHandsPaidChecked
50103♦9♦ 12Q♥A♦ 21 blackjack252.5945× the bet
49106♥9♥5♠ 20A♥5♣ 16A♠Q♦ 21202× the bet
48102♠3♦ 52♣J♥Q♣ 22 bust00× the bet
47104♠6♠Q♥ 206♠5♠10♣ 21 doubled404× the bet
4610Q♦3♦5♠ 183♠4♥3♣9♣ 19202× the bet
4510J♠7♠ 173♣9♠8♣ 20202× the bet
44107♣A♠ 188♥9♠ 1700× the bet
43103♦A♣10♦6♣ 20A♥2♣A♦2♥Q♠ 1600× the bet
42103♥5♠7♠5♦ 20A♠8♠ 1900× the bet
41102♠5♠9♦9♠ 252♠Q♣7♦ 19202× the bet
40108♣9♣ 1710♠3♦5♦ 18202× the bet
39105♣8♣5♠ 186♠3♦2♣ 11 doubled00× the bet
381010♣4♦ 148♣7♣ 15 surrendered50.5× the bet
37104♦K♠9♠ 237♣5♦ 12202× the bet
3610A♣5♣Q♦2♠ 188♥J♠ 18101× the bet
3510Q♦9♣ 19Q♥J♠ 20202× the bet
3410J♣K♣ 204♥3♦6♠A♦7♣ 21202× the bet
331010♠3♠ 137♣8♥ 15 surrendered50.5× the bet
3210A♥5♠4♥ 20A♣7♠J♣ 1800× the bet
311010♠4♥9♦ 237♣K♣ 17202× the bet
30102♣A♣9♣4♦J♠ 266♥10♠ 16202× the bet
29105♦J♥6♥ 216♥10♦ 1600× the bet
28109♦6♣ 159♣7♠ 16 surrendered50.5× the bet
2710K♣9♣ 19Q♣Q♣ 20202× the bet
2610Q♦8♠ 189♣8♠ 1700× the bet
251010♣4♣ 14K♠6♥ 16 surrendered50.5× the bet
24103♠6♠5♣K♥ 2410♦5♠ 15202× the bet
23108♦9♥ 179♦J♠ 19202× the bet
22108♠10♠ 187♥J♥ 1700× the bet
21103♠8♠9♣ 202♥A♥5♣ 1800× the bet
20107♥6♠2♠4♣ 19Q♦9♣ 19101× the bet
19109♣A♥ 20J♦A♣ 21 blackjack252.5945× the bet
18102♣4♥4♦9♠ 19A♣9♠ 20202× the bet
17109♥2♠ 112♠J♣Q♦ 22 bust00× the bet
16102♠K♦6♥ 188♣5♥ 1300× the bet
1510K♥10♥ 20J♦4♥9♣ 23 bust00× the bet
14107♦4♥8♣ 19A♣8♦ 19101× the bet
1310K♠Q♥ 204♠8♥2♥6♣ 20101× the bet
1210K♣4♦7♠ 21K♦J♠ 2000× the bet
111010♠10♥ 205♠6♥9♦ 20 doubled202× the bet
10103♠A♣J♦9♠ 232♦4♦K♥ 16202× the bet
9109♦4♦10♦ 23Q♦J♦ 20202× the bet
81010♥6♥6♥ 22A♣7♣8♣2♣ 18202× the bet
710Q♣3♠5♦ 188♠J♣ 18101× the bet
6105♠9♥J♥ 245♣J♦ 15202× the bet
510J♠7♦ 176♦8♣8♠ 22 bust00× the bet
4109♦6♣ 152♥6♥7♠Q♦ 25 bust00× the bet
3104♠A♣ 1510♣A♠ 21 blackjack252.5945× the bet
2109♦3♦ 12K♥2♦10♣ 22 bust00× the bet
1108♣3♣4♦J♦ 254♣7♠J♠ 21 doubled404× 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
8fe29eb1503ed23e7e0167304ffa7603d5d462dd962ce19f7ca061244d60db93
Seed
7e9eb7201ca4ce74824ccffa165dffb67b8655409baaf43a2e4d54bb3f6d470b SHA-256 of "degen.match.seed.v1", a zero byte and the 32 seed bytes is the seed hash.
Bettor's seed
a7504970fc71047d39da924cf85d7a40
Commitment
Batch 69,787, Merkle root c87bdbda4dedd8f6e31db0772f7bdf182e06ca45407e15183723aab36ce10c85. Recorded by Degen Protocol; on-chain publication is not available yet. See this batch and its Merkle tree
Merkle path
  1. 58339e7db69649e27becee1b30bdc488ac785d8a1851526ee8df2ed1b2099f5d
  2. addbda45cce239d648cbcccfc2e668d8875c2fdd7e8df257d38c7a26627e2068
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.