Degen Protocol
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Session against the house

Blackjack

ended Play money · 1b2f4cb9db3ce6e5eacb77d7d5b85254

Watch the replayThe handsThe rulesCheck it is fair

gbbagainst the house
Hands played
200
Wagered
2,190 play
Returned
1,905 play
Bettor's net
-285 play
Return
86.99%

Results by hand

Final
Hands
200
played
Pace
21.1/min
overall 22.2/min
Biggest swing
-20
Seat 1 · hand 2

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

SeatNetRateStreak
gbb-285-142.5 play/100won 2

Last hands

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

The hands

Newest first
#BetDealerHandsPaidChecked
50109♠5♥7♠ 219♠8♦ 1700× the bet
49105♣8♣K♠ 2310♣10♥ 20202× the bet
48109♥5♣A♦4♦ 198♥3♣A♥ 12 doubled00× the bet
4710A♥7♣ 18J♠7♦ 1700× the bet
46104♠A♥J♠7♠ 225♥2♣J♣ 17202× the bet
4510J♣Q♦ 207♣6♥10♥ 23 bust00× the bet
4410Q♠7♠ 172♦5♠J♣ 17101× the bet
4310A♠Q♥ 215♥Q♠ 1500× the bet
4210A♠3♠ 144♦A♠9♦8♦ 22 bust00× the bet
41108♥7♠3♠ 18A♠6♦3♠ 20202× the bet
4010J♥2♠J♠ 22J♣Q♦ 20202× the bet
391010♠8♣ 183♠8♦4♠ 15 doubled00× the bet
38104♣10♣ 14A♠Q♥ 21 blackjack252.5945× the bet
3710K♦5♣6♠ 212♦4♦8♥4♠ 1800× the bet
36104♥10♥10♠ 24A♠3♠ 14A♣J♦ 21404× the bet
35109♥3♦2♠5♦ 196♣A♣8♥6♦ 21202× the bet
34106♦K♥3♥ 193♦2♣9♣ 1400× the bet
33102♦3♠A♦4♣ 2010♣Q♥ 20101× the bet
3210Q♣J♠ 202♥K♥4♣K♥ 26 bust00× the bet
31108♠K♦ 189♣10♥ 19202× the bet
301010♠4♠9♠ 23K♦10♣ 20202× the bet
2910J♣9♥ 19Q♦K♦ 20202× the bet
2810Q♦2♥ 129♠6♣ 15 surrendered50.5× the bet
2710J♠8♠ 18J♦2♠7♦ 19202× the bet
261010♠6♦ 163♦Q♠K♣ 23 bust00× the bet
25106♣5♣8♣ 19A♦9♠ 20202× the bet
24104♦6♠K♦ 206♠Q♠ 1600× the bet
23109♦7♦5♠ 218♥K♣ 1800× the bet
221010♣5♥2♣ 173♦7♣10♠ 20202× the bet
211010♦A♦ 21A♦A♥ 1200× the bet
2010J♣2♥7♠ 1910♣Q♣ 20202× the bet
1910K♠9♠ 19J♠Q♥ 20202× the bet
1810Q♦J♥ 209♣9♠ 1800× the bet
17106♠4♦8♣ 183♦J♠ 1300× the bet
16102♥10♥Q♠ 224♦K♠ 14202× the bet
1510J♠K♦ 20Q♥J♦ 20101× the bet
14103♠9♣2♣7♣ 213♣8♠2♦ 13 doubled00× the bet
13103♥A♣Q♥3♦ 17K♥7♥ 17101× the bet
1210Q♥8♣ 18A♠5♥10♦8♦ 24 bust00× the bet
11105♦J♣8♥ 23K♠9♥ 19202× the bet
10109♣5♣ 14Q♣5♠7♠ 22 bust00× the bet
910Q♠2♠4♠7♥ 23J♣10♦ 20202× the bet
8107♣A♠ 18J♦8♠ 18101× the bet
7107♦K♠ 174♦4♠5♠10♠ 23 bust00× the bet
6103♦Q♦K♦ 23Q♠8♣ 18202× the bet
510K♣K♠ 209♠K♥ 1900× the bet
4106♣10♥9♦ 252♥K♠ 12202× the bet
3107♠Q♦ 176♣J♣7♣ 23 bust00× the bet
2108♣J♣ 183♠7♥4♠ 14 doubled00× the bet
1106♠8♥6♥ 20Q♠4♦ 1400× 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
cf4845d3f6851896d024641b1360fa9479fa365d1106087fa375946169787679
Seed
6fa8cbad7ff744de87669d5ca021d7d2be66918dfa4fef9d7a159debbe9631f5 SHA-256 of "degen.match.seed.v1", a zero byte and the 32 seed bytes is the seed hash.
Bettor's seed
97f3fd5f0ba536ef981ba8cb094a7369
Commitment
Batch 70,084, Merkle root 0d6465bb34e66afbde0e0ac595b19019e7d372cf1630a9a3678792f415fcc2ef. Recorded by Degen Protocol; on-chain publication is not available yet. See this batch and its Merkle tree
Merkle path
  1. 3aa810f0d256d4f0f7f4699baf4f492f6c5c9830e40338da3996ea254e8045c2
  2. ea568bfba235f23c4ba575068fb4fc31d2504582391234c11a1b579f591ebad4
  3. 54e4afa52ecccc35e2f7c4f33db70312cca922d672f9d4a0c5ce0d17f4d20499
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.