Degen Protocol
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Session against the house

Blackjack

ended Play money · aeb1c5654be8659cb6aa39248d48f884

Watch the replayThe handsThe rulesCheck it is fair

gbbagainst the house
Hands played
200
Wagered
2,370 play
Returned
2,375 play
Bettor's net
+5 play
Return
100.21%

Results by hand

Final
Hands
200
played
Pace
20.2/min
overall 20.3/min
Biggest swing
+40
Seat 1 · hand 130

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

SeatNetRateStreak
gbb+5+2.5 play/100won 4

Last hands

  1. 200Seat 1+10
  2. 199Seat 1+10
  3. 198Seat 1+10
  4. 197Seat 1+10
  5. 196Even0
  6. 195Even0
  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
50106♥A♠ 17Q♥K♣ 20202× the bet
49109♠7♥Q♠ 263♠10♣A♣6♦ 20202× the bet
4810J♠J♥ 209♦4♥7♦ 20101× the bet
47108♣4♠10♥ 22K♣2♦8♠ 20202× the bet
46109♠3♠ 125♦K♣J♣ 25 bust00× the bet
45108♥6♣10♦ 24A♣4♣ 15A♠K♦ 21404× the bet
44107♦9♣4♣ 20J♠7♥ 1700× the bet
43108♥10♠ 186♣6♠3♠J♠ 25 bust00× the bet
4210J♠5♠5♠ 205♠3♦3♥10♦ 21202× the bet
4110K♠4♣ 1410♦5♦ 15 surrendered50.5× the bet
40102♥10♦K♣ 223♦J♦ 13202× the bet
3910A♣6♣ 178♠6♣6♦ 20202× the bet
3810A♣2♣ 133♥9♦A♣Q♠ 23 bust00× the bet
3710J♠6♠Q♣ 26A♣4♥4♣ 19202× the bet
36104♥4♠Q♣ 18J♣5♥ 1500× the bet
35108♦9♣ 173♦6♥4♦J♣ 23 bust00× the bet
34106♠7♥5♠ 18K♣10♦ 20202× the bet
33106♦10♠A♣ 174♦2♥8♥ 1400× the bet
32103♥4♣3♣K♦ 202♥9♠2♦ 13 doubled00× the bet
31103♦2♠A♣9♠8♦ 236♥8♥ 146♣4♥K♥ 20 doubled606× the bet
3010K♠5♠ 15Q♠5♠ 15 surrendered50.5× the bet
29106♠5♣3♥6♦ 203♠8♠6♥ 17 doubled00× the bet
28102♣K♣K♦ 228♠5♦ 13202× the bet
2710J♣3♠ 13A♥Q♠ 21 blackjack252.5945× the bet
26102♥Q♥J♠ 229♥6♠ 15202× the bet
25103♥A♦Q♥Q♦ 2410♥3♥ 13202× the bet
2410J♠J♠ 20Q♠6♠ 16 surrendered50.5× the bet
23105♠9♥3♦ 1710♥J♥ 20202× the bet
22106♠9♦3♠ 187♦K♦ 1700× the bet
2110Q♠10♣ 208♥3♠10♠ 21 doubled8♣10♦ 188♦J♠ 188♠10♥ 18404× the bet
2010Q♦K♠ 209♦4♦4♥ 1700× the bet
19102♣Q♥A♣J♠ 238♦9♣ 17202× the bet
18108♥2♣7♣ 17K♥8♥ 18202× the bet
17106♣K♦J♣ 265♦J♦ 15202× the bet
1610A♥2♣ 134♣2♣8♦A♦7♣ 22 bust00× the bet
1510Q♦J♠ 20K♦K♣ 20101× the bet
1410A♦9♦ 203♣2♣5♥3♥2♦Q♦ 25 bust00× the bet
13104♥Q♠6♦ 20K♠7♦ 1700× the bet
1210A♦J♦ 216♥10♠ 1600× the bet
11103♦10♥10♣ 2310♠Q♠ 20202× the bet
10107♣7♣6♥ 2010♦Q♣ 20101× the bet
9102♣5♥8♣A♦2♣ 183♥6♠3♠9♣ 21202× the bet
810J♥5♦6♣ 217♣4♠6♣ 17 doubled00× the bet
7106♦4♦7♥ 176♣10♠ 1600× the bet
610K♥J♣ 202♥3♠10♣4♠ 1900× the bet
51010♦5♣2♥ 173♣2♦2♦2♣10♠ 19202× the bet
410J♦J♣ 20A♦8♣ 1900× the bet
310K♦K♠ 202♠7♥J♥ 1900× the bet
2105♥2♦A♠ 185♦4♦2♦ 11 doubled00× the bet
110A♥2♥8♠ 2110♣7♦ 1700× 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
7dfe9e6b8670437c6f66d837164102dab9a85429ea9250ecf4087e6a3bfedd74
Seed
057b9ab982141eff97806ba7119d5f235d600dabdcb90de10cfcc2f6b854c9d2 SHA-256 of "degen.match.seed.v1", a zero byte and the 32 seed bytes is the seed hash.
Bettor's seed
abd8809b08388101bd0ecc6cc883fd5f
Commitment
Batch 70,758, Merkle root b2f0c681e6314cd5873dc0610f5fff5b4d79d33c7f6bf3da7d87eeeceb7c2512. Recorded by Degen Protocol; on-chain publication is not available yet. See this batch and its Merkle tree
Merkle path
  1. 3123dc86989438fc453fede19acb62b430532dd6b45eb888562c8c3b2c5e5546
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.