Degen Protocol
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Session against the house

Blackjack

ended Play money · 1a3b1b287f3dee2c7d63a0b34ca736db

Watch the replayThe handsThe rulesCheck it is fair

gbbagainst the house
Hands played
200
Wagered
2,230 play
Returned
2,045 play
Bettor's net
-185 play
Return
91.70%

Results by hand

Final
Hands
200
played
Pace
23.0/min
overall 19.7/min
Biggest swing
-20
Seat 1 · hand 4

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

SeatNetRateStreak
gbb-185-92.5 play/100lost 1

Last hands

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

The hands

Newest first
#BetDealerHandsPaidChecked
1001010♦K♣ 20K♦J♠ 20101× the bet
99106♦4♦Q♣ 20A♣7♣3♦ 21 doubled404× the bet
9810Q♥2♦ 127♦6♠Q♥ 23 bust00× the bet
97106♦8♦K♦ 247♠3♠Q♣ 20 doubled404× the bet
9610A♣K♣ 216♠J♥ 1600× the bet
951010♦4♦ 144♠Q♦9♦ 23 bust00× the bet
9410K♣A♣ 219♠2♦ 1100× the bet
931010♥6♣10♦ 2610♣4♣5♦ 19202× the bet
92108♣K♦ 186♥3♠A♠ 20202× the bet
91108♠K♥ 1810♣6♦Q♦ 26 bust00× the bet
90104♦10♦Q♠ 244♦J♠ 14202× the bet
891010♥6♦4♠ 20K♠2♥A♣8♦ 21202× the bet
8810A♣Q♥ 217♠4♥ 1100× the bet
8710K♣3♦J♦ 233♦4♥Q♣ 17202× the bet
861010♦9♦ 195♥10♦ 15 surrendered50.5× the bet
85105♠J♥3♣ 1810♥2♥ 1200× the bet
84106♣Q♦3♣ 194♣10♣ 1400× the bet
8310J♠5♠5♠ 20K♥7♣ 1700× the bet
82102♥3♦4♠3♥3♦4♠ 195♠K♣ 1500× the bet
8110J♦Q♥ 204♠6♣2♣J♣ 22 bust00× the bet
8010K♣10♠ 20J♦8♥ 1800× the bet
79103♣3♠4♦3♦10♥ 23Q♠K♦ 20202× the bet
7810Q♠K♦ 208♣4♠8♦ 20101× the bet
77103♦K♥9♣ 22J♥6♥ 16202× the bet
761010♦6♣A♦ 1710♦K♦ 20202× the bet
75108♠Q♠ 183♣2♠2♥4♣4♠7♦ 22 bust00× the bet
7410Q♣9♥ 198♦10♥ 1800× the bet
73104♣6♥Q♥ 205♦4♣5♦ 14 doubled00× the bet
7210K♥J♣ 205♦3♥K♠ 1800× the bet
7110Q♦4♥6♠ 20J♠Q♠ 20101× the bet
70106♣3♠A♠ 206♣4♥5♦ 15 doubled00× the bet
69102♣4♣A♠ 174♠6♥6♥ 16 doubled00× the bet
68105♥7♠J♠ 226♦2♠6♦ 146♠K♣ 16404× the bet
67107♦4♥ 11J♣5♦9♠ 24 bust00× the bet
6610J♣K♥ 206♠10♣ 16 surrendered50.5× the bet
65108♣3♥10♣ 216♠K♥5♠ 21101× the bet
641010♠10♥ 20A♣8♠ 1900× the bet
6310J♥8♦ 182♣J♦2♦9♦ 23 bust00× the bet
6210A♦3♥2♥9♣9♣ 245♥Q♣3♥ 18202× the bet
61106♦3♥10♠ 19Q♦3♥ 1300× the bet
601010♠7♠ 176♥K♠ 16 surrendered50.5× the bet
59105♣10♥ 15A♥Q♥ 21 blackjack252.5945× the bet
5810K♠6♣6♦ 229♦9♦ 18202× the bet
5710J♠3♣ 137♥9♠ 16 surrendered50.5× the bet
56105♠K♣5♦ 206♠10♠ 1600× the bet
55103♠10♠J♠ 23Q♣5♥ 15202× the bet
54102♠Q♠ 124♣3♦5♠10♣ 22 bust00× the bet
53102♠7♦2♣Q♠ 21K♣K♥ 2000× the bet
5210A♠9♥ 204♥9♥A♦4♥ 1800× the bet
5110J♣K♥ 2010♦2♥8♣ 20101× 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
5a4f476e7ece31337e09aa43a285a8f3f56f987568d776dc4a59930f8cbe3b2f
Seed
147941d03af16f0a148c79e2060681eb4c8bb9fd994d2a57232e6036076c32c4 SHA-256 of "degen.match.seed.v1", a zero byte and the 32 seed bytes is the seed hash.
Bettor's seed
bcfecf3dbfacf9166a1ea0de22793ec2
Commitment
Batch 66,173, Merkle root 1762630280afe8dc47140f76a07ea249e9e8c185545792f1f02ed3793aede31f. Recorded by Degen Protocol; on-chain publication is not available yet. See this batch and its Merkle tree
Merkle path
  1. 5a743a3359d920d99ef7ef2778a04a78e2c1e1ec41c30a2aad6e8d9ceb43b191
  2. 503e5c0d028fff8d41943573886f90074fc2471afd3d03506db5c0e978bdeb8d
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.