Degen Protocol
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Session against the house

Blackjack

ended Play money · 81af9320322ced385c3252a1a05d57d5

Watch the replayThe handsThe rulesCheck it is fair

gbbagainst the house
Hands played
200
Wagered
2,200 play
Returned
2,320 play
Bettor's net
+120 play
Return
105.45%

Results by hand

Final
Hands
200
played
Pace
19.1/min
overall 19.9/min
Biggest swing
+30
Seat 1 · hand 1

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

SeatNetRateStreak
gbb+120+60.0 play/100lost 4

Last hands

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

The hands

Newest first
#BetDealerHandsPaidChecked
5010K♦3♣ 133♠3♠7♠K♣ 23 bust00× the bet
49106♣4♣K♥ 202♠A♦3♥ 16 doubled00× the bet
48107♦Q♣ 176♠Q♣K♥ 26 bust00× the bet
47102♠6♣K♣ 187♠A♥ 18101× the bet
461010♠K♣ 207♥2♣5♠3♦ 1700× the bet
45102♦6♥J♠ 183♥4♠J♥ 1700× the bet
441010♦10♥ 203♦A♦5♥ 1900× the bet
4310A♥4♠J♦J♥ 252♦10♣5♥ 17202× the bet
4210K♥2♠ 125♦J♦ 15 surrendered50.5× the bet
4110A♠8♠ 192♥Q♣2♦6♠ 20202× the bet
40108♣4♠ 127♣7♣10♦ 24 bust00× the bet
39109♥8♥ 17K♦5♦A♣A♠ 17101× the bet
38102♥7♣5♦5♦ 199♦Q♦ 19101× the bet
37109♣K♦ 194♦6♦Q♥ 20 doubled404× the bet
3610K♥Q♦ 20Q♦3♠4♣ 1700× the bet
3510Q♦7♣ 172♦6♥5♣J♥ 23 bust00× the bet
34103♠9♦ 12J♠A♦ 21 blackjack252.5945× the bet
33109♦5♦ 144♥J♥Q♣ 24 bust00× the bet
32103♠2♣7♥A♥3♥2♠ 18J♠8♠ 18101× the bet
31104♦A♦3♠ 189♠K♥ 19202× the bet
301010♦9♣ 19Q♦Q♠ 20202× the bet
2910Q♣7♥ 17J♥3♣3♦9♥ 25 bust00× the bet
28109♥6♦10♣ 259♦K♥ 19202× the bet
27106♦7♠4♥ 176♣9♣ 1500× the bet
26102♣10♠4♦4♦ 204♥8♦A♠ 1300× the bet
2510K♥J♥ 205♠J♣ 15 surrendered50.5× the bet
2410A♣5♣ 163♠2♣5♣5♦7♥ 22 bust00× the bet
23105♥8♦4♥ 173♠Q♣ 1300× the bet
22106♦Q♥J♦ 26A♣8♥ 19202× the bet
21106♥10♥J♦ 262♦5♦8♣ 15202× the bet
2010J♣A♣ 21Q♣10♠ 2000× the bet
19108♣10♥ 187♣J♥ 1700× the bet
181010♦10♠ 2010♦4♠2♣6♦ 22 bust00× the bet
17109♥2♠ 11Q♠6♥ 16 surrendered50.5× the bet
16105♦3♣6♣2♠K♥ 266♥8♦ 14202× the bet
15107♦5♦5♠ 17Q♦7♥ 17101× the bet
14105♠3♠A♥ 196♥9♥ 1500× the bet
1310J♣4♥4♣ 187♠J♠ 1700× the bet
12106♠2♠8♦6♥ 227♦A♠Q♦ 18 doubled404× the bet
11105♥8♠8♥ 216♣9♥ 1500× the bet
101010♣K♣ 20A♠5♠8♦7♦ 21202× the bet
9103♣5♠A♠ 194♣10♥ 1400× the bet
810J♥2♥A♣3♣A♠ 174♥4♠K♦ 18202× the bet
7105♥J♠10♣ 25J♦10♥ 20202× the bet
6107♠Q♣ 17K♦K♣ 20202× the bet
510A♦4♣ 155♠9♣K♥ 24 bust00× the bet
4105♣10♦9♠ 24J♦6♠ 16202× the bet
3109♠10♠ 1910♦10♥ 20202× the bet
210Q♥3♦5♣ 18J♣Q♠ 20202× the bet
1106♠6♦K♦ 227♥J♥ 177♦2♣3♦ 12 doubled606× 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
27059e437e8e527c95ce5d13fd1dfbaf4d11ba81a56a61b2ddc6372192a62b57
Seed
c6bef7c0f30572c26dbda1d9443ab751717a2b0a04f2d168d64db2754f0a4210 SHA-256 of "degen.match.seed.v1", a zero byte and the 32 seed bytes is the seed hash.
Bettor's seed
564894f45b7979d5f38317df8b27d109
Commitment
Batch 67,978, Merkle root b4050084a7bafea784b5e7116acf50d02b1ec9509a752d2f019e88f7c30a626a. Recorded by Degen Protocol; on-chain publication is not available yet. See this batch and its Merkle tree
Merkle path
  1. e75ae68b382949c033c4e25d1c09371f2edf9d196d51ce98839796f5ce9c3ef4
  2. 51e4131bdb380ff099413ec41d6adf84bb22dbf7e241166e866794128ee13b7c
  3. 9f7761fb07048224d2994ec6e35acdb219889ad3b05e379f0a1981c5e19fdf69
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.