Degen Protocol
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Session against the house

Blackjack

ended Play money · 949b4c506cfaf10edae6f5b81b607199

Watch the replayThe handsThe rulesCheck it is fair

gbbagainst the house
Hands played
200
Wagered
2,220 play
Returned
1,775 play
Bettor's net
-445 play
Return
79.95%

Results by hand

Final
Hands
200
played
Pace
19.3/min
overall 20.1/min
Biggest swing
-30
Seat 1 · hand 58

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

SeatNetRateStreak
gbb-445-222.5 play/100lost 5

Last hands

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

The hands

Newest first
#BetDealerHandsPaidChecked
100105♥10♦J♠ 25Q♣10♦ 20202× the bet
99106♦5♣8♦ 195♥2♣6♥ 1300× the bet
9810A♥A♣9♥ 215♦5♦9♦ 1900× the bet
9710K♦A♦ 21A♠A♣ 1200× the bet
9610A♠6♥ 178♠9♦ 17101× the bet
951010♦3♠5♦ 184♥2♦5♦J♥ 21202× the bet
9410K♠3♥ 132♦4♣9♠K♦ 25 bust00× the bet
93107♠Q♣ 175♥9♠10♦ 24 bust00× the bet
921010♥J♠ 205♣3♥7♥A♣2♦ 1800× the bet
91104♥Q♥2♦9♦ 258♣2♦3♣ 13 doubled404× the bet
901010♦7♠ 177♣8♠ 15 surrendered50.5× the bet
8910J♥8♠ 189♦2♦J♥ 21 doubled404× the bet
8810J♥4♦ 14K♠A♥ 21 blackjack252.5945× the bet
87103♥9♠ 12Q♥A♥ 21 blackjack252.5945× the bet
8610Q♦4♥ 145♥8♥Q♦ 23 bust00× the bet
8510A♠Q♠ 212♣A♠ 1300× the bet
8410Q♠K♥ 20Q♦J♠ 20101× the bet
831010♦9♦ 195♦4♦2♠A♣10♣ 22 bust00× the bet
82105♥A♣5♦ 21J♠Q♠ 2000× the bet
81103♥3♥10♣3♥ 195♥6♣4♥ 15 doubled00× the bet
80108♥7♥6♣ 21Q♥10♠ 2000× the bet
7910K♣6♣3♥ 1910♠K♠ 20202× the bet
781010♥8♦ 187♠10♦ 1700× the bet
7710K♥10♣ 20A♥10♥ 21 blackjack252.5945× the bet
76108♦5♥A♦4♦ 188♠9♠ 1700× the bet
75103♠3♦9♠8♦ 23K♣8♣ 18202× the bet
74109♦K♠ 197♥6♥4♥ 1700× the bet
73109♦4♦ 135♦K♠K♥ 25 bust00× the bet
72105♣5♦5♦3♣ 184♠5♠8♦ 17 doubled00× the bet
7110A♣10♥ 21K♥A♥ 21 blackjack101× the bet
70109♣2♠9♠ 2010♦8♦ 1800× the bet
69104♥A♣J♦3♠ 18Q♥10♣ 20202× the bet
68102♥6♥5♥5♦ 184♥9♠ 1300× the bet
67105♦J♥Q♣ 25Q♦3♣ 13202× the bet
6610K♥10♣ 2010♠4♣7♥ 21202× the bet
65106♣5♣9♣ 205♠3♦8♦ 1600× the bet
64102♥6♥8♦4♠ 207♦4♠9♣ 20 doubled202× the bet
63103♠7♠Q♦ 206♥5♠Q♣ 21 doubled404× the bet
62104♣A♣6♠ 218♠10♠ 188♦3♦5♦ 16 doubled00× the bet
61109♦4♠ 135♣Q♥J♦ 25 bust00× the bet
60107♠J♦ 174♦8♦8♦ 20202× the bet
59106♠A♥ 17Q♣3♠ 1300× the bet
58103♦A♥K♠6♠ 209♦2♥7♣ 18 doubled9♣3♥5♥ 1700× the bet
57108♠K♣ 182♥4♦6♥3♣8♦ 23 bust00× the bet
56108♥5♣ 13K♣5♣J♣ 25 bust00× the bet
5510A♥9♠ 208♣10♦ 1800× the bet
54104♦10♠4♥ 188♣J♥ 18101× the bet
531010♠7♣ 175♥K♦ 15 surrendered50.5× the bet
521010♠8♠ 186♦7♠A♠2♠Q♣ 26 bust00× the bet
5110J♥5♥9♠ 24Q♦9♦ 19202× 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
2000d9d6dd7c0c1324d28871ce8a28804454374df02d080d144a076c16a32411
Seed
622f356b934ed04274c53290040f24ee23bf9f80841ac26cc5bf54fdd1c02df7 SHA-256 of "degen.match.seed.v1", a zero byte and the 32 seed bytes is the seed hash.
Bettor's seed
11525b10384da0b7ca5c87d46dc791ef
Commitment
Batch 66,564, Merkle root 8055fc8888f9d5b77cd96e7a5793e9f5fb994967f3dd7436bc05a0c2072749aa. Recorded by Degen Protocol; on-chain publication is not available yet. See this batch and its Merkle tree
Merkle path
  1. 9c7ae3958a26ca3486132374854dc49b86311ca43cb10337362957fadc340804
  2. 45d97a062d386d23a8a6dd1bdbdb643f28dc49ed96a6adb96017a7b6c5087e14
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.