Degen Protocol
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Session against the house

Blackjack

ended Play money · bdc8e59ff1acf21bbe4380486861bf47

Watch the replayThe handsThe rulesCheck it is fair

gbbagainst the house
Hands played
200
Wagered
2,250 play
Returned
2,300 play
Bettor's net
+50 play
Return
102.22%

Results by hand

Final
Hands
200
played
Pace
15.6/min
overall 19.8/min
Biggest swing
-20
Seat 1 · hand 3

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

SeatNetRateStreak
gbb+50+25.0 play/100lost 2

Last hands

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

The hands

Newest first
#BetDealerHandsPaidChecked
100107♣9♣5♣ 21A♥5♠8♣6♠ 2000× the bet
991010♣Q♥ 202♠2♥K♥10♥ 24 bust00× the bet
98102♥8♦9♣ 196♥2♦A♦ 196♥4♥10♠ 20 doubled505× the bet
97108♥8♠10♥ 264♠9♥7♠ 20202× the bet
9610A♠9♠ 207♠7♦7♦ 21202× the bet
95103♠Q♣A♥4♠ 18A♠3♥7♥ 21202× the bet
94107♣6♥A♦6♣ 20A♣8♦ 1900× the bet
93106♥3♦5♥J♣ 245♥4♥2♥ 11 doubled404× the bet
9210Q♣A♥ 21Q♦J♦ 2000× the bet
9110A♥5♠2♦ 18Q♦5♣2♥ 1700× the bet
90105♠8♠3♣A♣ 17A♣3♣7♠ 21 doubled404× the bet
8910Q♥K♦ 20K♦K♦ 20101× the bet
881010♦5♥ 158♠5♥9♥ 22 bust00× the bet
8710Q♣5♠7♥ 228♥K♦ 18202× the bet
8610J♣9♠ 19K♦Q♦ 20202× the bet
85108♠A♦ 19K♥8♠ 1800× the bet
8410A♥J♥ 214♠Q♣ 1400× the bet
831010♣2♥ 125♠10♣ 15 surrendered50.5× the bet
82104♦Q♣6♠ 204♠2♣J♣ 1600× the bet
81108♠A♠ 19A♦4♠9♣2♠5♠ 21202× the bet
80107♣K♦ 1710♣K♣ 20202× the bet
79102♣7♣6♠Q♠ 256♦A♣3♠ 20202× the bet
7810K♣2♠9♦ 219♥2♣2♥ 13 doubled00× the bet
77106♦J♣Q♣ 267♦J♥ 17202× the bet
76102♠9♥A♠9♦ 21K♠7♣ 1700× the bet
75104♠A♦9♠9♣ 234♥7♠3♠ 14 doubled404× the bet
74104♦7♠J♦ 212♠A♣3♠7♣ 1300× the bet
7310J♥K♠ 204♦8♣K♠ 22 bust00× the bet
721010♦7♦ 177♥3♠Q♣ 20202× the bet
7110A♣6♥ 17J♦5♦9♣ 24 bust00× the bet
70103♣9♣ 12J♣2♠J♥ 22 bust00× the bet
69108♠4♠3♠K♠ 259♠2♣K♥ 21 doubled404× the bet
6810A♠4♠3♣ 189♠5♣7♦ 21202× the bet
6710Q♦7♠ 17K♥9♦ 19202× the bet
6610A♠5♠4♠ 20Q♦Q♥ 20101× the bet
6510A♠A♦K♣10♦ 22A♥9♠ 20202× the bet
6410K♠5♣5♣ 20K♠7♦ 1700× the bet
6310A♦2♦ 136♦K♣ 16 surrendered50.5× the bet
62103♥8♣2♠2♥5♠ 20A♦7♥5♦ 13 doubled00× the bet
6110A♦9♦ 20J♦J♣ 20101× the bet
60105♠J♦3♣ 186♦4♣2♥ 12 doubled00× the bet
5910Q♦J♦ 208♥9♣ 1700× the bet
58106♦3♥6♦7♦ 227♦J♠ 17202× the bet
57106♣Q♥7♣ 233♣10♣ 13202× the bet
56104♥A♦10♠Q♣ 254♣7♣2♣ 13 doubled404× the bet
55105♦3♠2♣6♣6♦ 22K♣7♦ 17202× the bet
54107♦3♣6♦A♦ 179♥Q♣ 19202× the bet
531010♥3♥3♦A♠ 17J♥8♣ 18202× the bet
5210K♣Q♠ 20Q♥A♥ 21 blackjack252.5945× the bet
5110K♦2♦ 1210♠6♦ 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
4d3a2e13cc0bbbe7a952f662fe8f936bb470b8d5c82b0c7ca7f5541baf0c735d
Seed
d12981dce1d4106bc068d70459b57e521ee606d20c897593a4461be1d46392b0 SHA-256 of "degen.match.seed.v1", a zero byte and the 32 seed bytes is the seed hash.
Bettor's seed
686b6defa001340fb965b1e202ba08e3
Commitment
Batch 72,211, Merkle root b4921b9e4276e5de249c1adf3cee0ff1beb356cd38aa677ff006dbb6620b438f. Recorded by Degen Protocol; on-chain publication is not available yet. See this batch and its Merkle tree
Merkle path
  1. 6a7345255df5eadc2a7016255d6caad5c8036a27a9c21873bb60c85c4609f654
  2. 1d4b5acb3262594290f6a9938e3b2c622ef90b8d511a717c518f0a6ccd5ae6c2
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.