Degen Protocol
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Session against the house

Blackjack

ended Play money · 476345060899043cdce079b670381af1

Watch the replayThe handsThe rulesCheck it is fair

gbbagainst the house
Hands played
200
Wagered
2,280 play
Returned
2,100 play
Bettor's net
-180 play
Return
92.11%

Results by hand

Final
Hands
200
played
Pace
21.5/min
overall 21.0/min
Biggest swing
+40
Seat 1 · hand 164

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

SeatNetRateStreak
gbb-180-90.0 play/100won 1

Last hands

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

The hands

Newest first
#BetDealerHandsPaidChecked
50105♣8♣3♥Q♥ 267♣9♠ 167♠J♦ 17404× the bet
4910K♣A♣ 217♣2♠ 900× the bet
48106♠8♥4♥ 18K♠Q♥ 20202× the bet
471010♠2♠2♣7♥ 21K♦K♠ 2000× the bet
4610Q♦K♣ 2010♥2♠J♣ 22 bust00× the bet
4510J♦Q♣ 203♣3♠10♣4♣ 20101× the bet
441010♣3♠4♥ 17J♦K♥ 20202× the bet
43102♦A♠3♣7♠5♦ 183♣8♥K♦ 21 doubled404× the bet
4210Q♠7♣ 17K♠9♥ 19202× the bet
41102♥7♠ 99♦3♥K♥ 22 bust00× the bet
40107♠5♦9♣ 215♣6♠8♦ 19 doubled00× the bet
391010♠2♣8♣ 207♦A♣3♥ 21202× the bet
38109♠K♣ 199♣10♠ 19101× the bet
3710A♣7♣ 18Q♥6♠ 16 surrendered50.5× the bet
3610K♥4♦ 1410♠5♠ 15 surrendered50.5× the bet
35104♣8♦8♠ 202♠Q♥ 1200× the bet
3410J♦9♥ 19J♣7♦ 1700× the bet
331010♠8♥ 186♦8♠3♥ 1700× the bet
3210K♠Q♣ 20K♥5♣ 15 surrendered50.5× the bet
3110J♠9♦ 198♠Q♦ 1800× the bet
301010♥6♠A♣ 174♠A♠J♠2♥ 17101× the bet
29106♦A♦ 178♠6♥ 1400× the bet
28108♠7♠8♣ 237♠10♦ 17202× the bet
2710K♠J♠ 206♠A♠A♠J♦ 1800× the bet
2610Q♣10♥ 20A♥6♠Q♣ 1700× the bet
25102♠J♠3♣3♠ 18J♠J♥ 20202× the bet
24106♠5♦8♠ 196♦8♦ 1400× the bet
23105♥4♦8♥ 173♠5♥9♥ 17101× the bet
22108♥K♣ 18J♠3♣8♣ 21202× the bet
2110A♣A♦8♣ 20Q♥7♣ 1700× the bet
20107♥9♠ 16J♠6♣K♠ 26 bust00× the bet
191010♣9♣ 19J♥8♣ 1800× the bet
1810A♠9♦ 209♠9♠ 1800× the bet
17108♠J♣ 18Q♠5♠9♥ 24 bust00× the bet
1610A♠8♣ 192♠8♦6♦7♦ 23 bust00× the bet
15108♣5♣6♠ 19A♥A♥ 12A♦3♠ 1400× the bet
14104♣2♣Q♥10♥ 268♣6♦ 14202× the bet
13103♠4♦5♠A♣4♦ 172♥4♥8♥ 1400× the bet
121010♠7♥ 179♠Q♥ 19202× the bet
11108♦6♣3♠ 179♠A♦ 209♣A♥ 20404× the bet
10103♣A♥K♣8♦ 224♥5♦J♠ 19 doubled404× the bet
91010♠J♣ 204♣K♠10♣ 24 bust00× the bet
810Q♦8♦ 188♦Q♠ 18101× the bet
710Q♠9♣ 192♠9♥5♥ 16 doubled00× the bet
6109♥9♦ 1810♥5♠K♣ 25 bust00× the bet
510K♥2♦ 123♥7♠6♣Q♦ 26 bust00× the bet
4109♣4♠7♦ 207♣A♦3♥ 21202× the bet
31010♠7♠ 17K♣Q♣ 20202× the bet
2105♦4♥ 910♥A♠ 21 blackjack252.5945× the bet
110Q♣7♠ 177♦9♠ 16 surrendered50.5× 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
e5ab4955a3635bdd782b3a559b9f1253416007b5f99b9bbafeaf351fda939be3
Seed
b6a5544db61a4cfdda55e18cc6bcae4ef9cf5bf4f0a1fbd4d67dfdb6f275d149 SHA-256 of "degen.match.seed.v1", a zero byte and the 32 seed bytes is the seed hash.
Bettor's seed
a0f4867040f8ed9d8c37594a8cbe2265
Commitment
Batch 70,975, Merkle root 0d3f0ff1d2d7d6495375e82bfcbd25681dd3d51938576d57739deee992f000a5. Recorded by Degen Protocol; on-chain publication is not available yet. See this batch and its Merkle tree
Merkle path
  1. fa78f07f216e4ae9ed60fea60700717c02d9a09795aa2a6586b5cb937f8f1f60
  2. 8c93d6df700867c70da81f6ca94d655ef3c20ba4397ef0b16de5054fdf29bfbd
  3. 839e6d120cc982af53805247ed6b4c030f2490341b92a8e4e71bf00f7d994d95
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.