Degen Protocol
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Session against the house

Blackjack

ended Play money · 5503e28492dbace46cadba37f2c27cb0

Watch the replayThe handsThe rulesCheck it is fair

gbbagainst the house
Hands played
200
Wagered
2,260 play
Returned
2,665 play
Bettor's net
+405 play
Return
117.92%

Results by hand

Final
Hands
200
played
Pace
19.5/min
overall 21.1/min
Biggest swing
-30
Seat 1 · hand 199

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

SeatNetRateStreak
gbb+405+202.5 play/100lost 5

Last hands

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

The hands

Newest first
#BetDealerHandsPaidChecked
15010Q♠2♣8♥ 208♣6♣6♦ 20101× the bet
149103♥2♥10♠Q♦ 254♦A♣10♣ 15202× the bet
14810K♣5♣ 15Q♦A♥ 21 blackjack252.5945× the bet
147103♠K♥Q♦ 23Q♦8♥ 18202× the bet
146108♣K♦ 18A♥5♥J♦A♦ 1700× the bet
14510K♦5♥ 154♣3♠5♦10♠ 22 bust00× the bet
144103♣K♥5♣ 18Q♣10♥ 20202× the bet
143104♦8♥J♣ 228♠A♦ 19202× the bet
14210A♠3♦ 142♦Q♠2♥A♦8♣ 23 bust00× the bet
14110A♣7♠ 1810♦Q♦ 20202× the bet
140105♠K♦9♠ 24A♦8♠ 19202× the bet
139102♥Q♣5♣ 177♦4♠10♠ 21 doubled404× the bet
138103♥2♠8♦J♣ 236♦2♠K♦ 18202× the bet
137108♦6♠7♠ 217♣Q♠ 1700× the bet
13610K♠6♦ 16Q♦4♠8♦ 22 bust00× the bet
135107♣J♥ 17A♠5♣A♦A♠ 18202× the bet
13410K♣J♣ 20J♠10♥ 20101× the bet
133108♣Q♥ 18J♥4♥2♥3♦ 19202× the bet
132109♠2♣7♦ 189♦A♣ 20202× the bet
13110Q♥6♥6♥ 22K♥J♠ 20202× the bet
13010J♥5♥5♥ 204♥Q♣5♦ 1900× the bet
129102♣9♣8♦ 196♦Q♦ 1600× the bet
128107♦2♠3♠A♥Q♦ 239♦K♣ 19202× the bet
12710Q♦10♦ 204♣8♠Q♣ 22 bust00× the bet
126104♠2♣2♣8♠A♦ 175♥7♦ 1200× the bet
125109♦K♠ 1910♦2♦7♥ 19101× the bet
124105♥A♣5♦ 213♥10♦ 1300× the bet
123109♠7♣ 166♠J♣ 16 surrendered50.5× the bet
12210J♣9♣ 19A♣2♥8♥ 21202× the bet
12110Q♦6♦K♥ 267♥7♠4♣ 18202× the bet
120107♦5♣7♠ 193♣4♥6♣3♥5♠ 21202× the bet
11910J♥5♠ 156♥8♥Q♣ 24 bust00× the bet
11810K♣4♠ 14A♥3♦J♦8♣ 22 bust00× the bet
117105♣J♦8♠ 23K♥5♠ 15202× the bet
11610A♦3♠Q♥Q♥ 246♥5♣5♥3♥ 19202× the bet
11510K♠A♥ 217♦Q♥ 1700× the bet
11410J♥J♣ 209♦7♣ 16 surrendered50.5× the bet
11310J♦6♥ 162♥4♥K♦J♣ 26 bust00× the bet
112107♥3♥8♣ 18Q♦10♠ 20202× the bet
11110A♣4♠ 155♦6♠3♣K♥ 24 bust00× the bet
110109♦5♣ 14K♣2♦10♦ 22 bust00× the bet
109106♥5♣2♥3♦5♦ 219♣10♣ 1900× the bet
108109♣Q♥ 197♦10♣ 1700× the bet
10710K♦J♦ 208♥4♥10♦ 22 bust00× the bet
106107♥7♦ 145♦8♥9♦ 22 bust00× the bet
10510J♥10♥ 20J♥K♦ 20101× the bet
10410A♦K♣ 219♥J♥ 1900× the bet
103104♠8♠K♥ 22K♠Q♣ 20202× the bet
10210A♣4♠5♦ 2010♣J♥ 20101× the bet
101106♣5♠4♣3♥ 183♦J♦ 1300× 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
e64c48b7ff0a208f50bfdaac922226385786c98cd34dc73c0835d74f98d0553e
Seed
f0531114e50707bd853a7561b590a487797c5c57bea5f14b7f8c3b118d26b0ae SHA-256 of "degen.match.seed.v1", a zero byte and the 32 seed bytes is the seed hash.
Bettor's seed
1210b8bce427464aeb6579ceacc023b7
Commitment
Batch 68,471, Merkle root 7dc27c4c12fd16f7bca4706ebab1e808cea755cd373abf956096157983250415. Recorded by Degen Protocol; on-chain publication is not available yet. See this batch and its Merkle tree
Merkle path
  1. f2ad6bfb4118d9686a116df0efeb3132d06f5cedce0e1c0fa91e6250fb994651
  2. 28182c0d244c307b38cbe22c5bbae97fa1f298df6ef871082aae4af9cf4c722b
  3. 2cc15ac0c81f1546497b9156648a8fb1ba5a3d00976e935b04363d399b7ac91e
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.