Degen Protocol
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Session against the house

Blackjack

ended Play money · ded270306b302fb2d34ca7427e6e5758

Watch the replayThe handsThe rulesCheck it is fair

gbbagainst the house
Hands played
200
Wagered
2,220 play
Returned
2,180 play
Bettor's net
-40 play
Return
98.20%

Results by hand

Final
Hands
200
played
Pace
23.2/min
overall 21.4/min
Biggest swing
+20
Seat 1 · hand 8

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

SeatNetRateStreak
gbb-40-20.0 play/100won 1

Last hands

  1. 200Seat 1+10
  2. 199Even0
  3. 198Even0
  4. 197Even0
  5. 196Seat 1+15
  6. 195Even0
  7. 194Even0
  8. 193Seat 1+10
  9. 192Even0
  10. 191Even0
  11. 190Seat 1+10
  12. 189Seat 1+20

The hands

Newest first
#BetDealerHandsPaidChecked
10010K♥J♥ 205♠7♣K♥ 22 bust00× the bet
9910K♥K♠ 20Q♥K♦ 20101× the bet
9810J♥8♦ 188♥J♠ 18101× the bet
9710A♠K♠ 21Q♦4♥ 1400× the bet
96104♣10♣3♥ 17A♥9♥ 20202× the bet
95107♣7♠4♠ 187♠6♠8♠ 21202× the bet
94107♣J♣ 17J♣9♥ 19202× the bet
93103♦6♦5♣10♠ 242♥Q♠A♥ 13202× the bet
9210A♣A♥Q♣Q♠ 228♣7♦3♥ 18202× the bet
91102♥5♦3♥8♥ 182♣5♦8♠ 1500× the bet
9010A♦8♥ 193♠5♦4♥8♥ 20202× the bet
891010♥5♣10♥ 257♠4♥3♥ 14 doubled404× the bet
88103♥10♥A♥A♣4♣ 192♠9♣2♥ 13 doubled00× the bet
87104♣6♠6♣J♦ 263♣A♥4♥ 18202× the bet
861010♥5♦ 15A♠K♣ 21 blackjack252.5945× the bet
8510J♠9♥ 194♦K♣8♣ 22 bust00× the bet
8410A♥J♣ 218♦10♦ 1800× the bet
8310Q♥8♣ 187♠6♥8♦ 21202× the bet
8210K♥7♣ 175♦7♦A♥9♣ 22 bust00× the bet
8110J♥10♦ 20K♥Q♠ 20101× the bet
80104♦3♥3♦9♦ 199♦8♠ 1700× the bet
7910A♥9♠ 20Q♥3♦9♦ 22 bust00× the bet
7810Q♣10♣ 20J♦4♠2♥K♦ 26 bust00× the bet
7710A♠5♦3♣ 192♠9♥J♥ 21202× the bet
76106♣J♥5♠ 21J♥K♠ 2000× the bet
75103♦4♥4♣6♣ 178♥Q♦ 18202× the bet
7410Q♣J♠ 20Q♠J♠ 20101× the bet
73108♦K♥ 1810♦K♥ 20202× the bet
72107♠6♠J♦ 23Q♠7♠ 17202× the bet
71109♦A♥ 2010♥4♠4♥ 1800× the bet
70104♠4♥10♦ 186♣3♥Q♣ 19 doubled404× the bet
69105♣K♠9♠ 245♠4♣3♣ 12 doubled404× the bet
68104♠Q♠7♠ 21J♦5♥ 1500× the bet
67104♣A♣2♣ 17K♦3♥ 1300× the bet
66107♦9♥Q♠ 266♦5♣4♦ 15 doubled404× the bet
65104♣4♠7♦3♣ 186♦A♥2♦ 19 doubled404× the bet
64106♦9♦10♣ 253♠10♥ 13202× the bet
6310K♦Q♣ 202♥K♠9♥ 21202× the bet
62103♣6♥8♥ 17K♥2♣3♥ 1500× the bet
61103♣A♠J♥3♠ 176♥8♥ 146♦J♣ 1600× the bet
6010Q♥Q♣ 203♥3♠3♠Q♠ 1900× the bet
5910Q♣J♣ 202♦6♣4♠4♣J♦ 26 bust00× the bet
5810K♦4♣4♥ 18Q♣10♦ 20202× the bet
5710J♦3♣8♥ 214♥J♣4♦ 1800× the bet
5610A♦4♦ 155♥7♦K♠ 22 bust00× the bet
55108♣J♥ 187♦3♦9♥ 19 doubled404× the bet
54107♠K♥ 176♣8♦8♥ 22 bust00× the bet
53107♠8♠ 156♥A♦8♠8♠ 23 bust00× the bet
5210J♦A♥ 212♥6♣ 800× the bet
51105♠10♥K♣ 252♣7♦5♣ 14 doubled404× 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
5482c6d1e6b2e75fefb6238b5fc067a884af71ace6898e5a74c25780744af012
Seed
9a30d98d4d547c1c0739f7a3a2963168edba5c60d90184d4c6ad6f6c93043b77 SHA-256 of "degen.match.seed.v1", a zero byte and the 32 seed bytes is the seed hash.
Bettor's seed
dbd67065a3cdcd8016c879d33b708b29
Commitment
Batch 69,340, Merkle root f569a6fcecefe7f41cebfb4d9323edce90b16bebe496d86657cbc7524a3dc03a. Recorded by Degen Protocol; on-chain publication is not available yet. See this batch and its Merkle tree
Merkle path
  1. c28fc885d104683baac00d9c946f22e745073c7099869eade31ce862b391b3e5
  2. 3ba766a4627d3ad4d8c1a6f8dde9314541517f5e83b8411a621d4589057fa16a
  3. bb2bfa5b18cb0f44b012e544aa7247c39f0427ccbf5f556b35931b749ea6c78c
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.