Degen Protocol
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Session against the house

Blackjack

ended Play money · 61718ca0376f6cf39cc85308d7710e3a

Watch the replayThe handsThe rulesCheck it is fair

gbbagainst the house
Hands played
200
Wagered
2,260 play
Returned
1,970 play
Bettor's net
-290 play
Return
87.17%

Results by hand

Final
Hands
200
played
Pace
23.5/min
overall 20.7/min
Biggest swing
+40
Seat 1 · hand 142

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

SeatNetRateStreak
gbb-290-145.0 play/100won 3

Last hands

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

The hands

Newest first
#BetDealerHandsPaidChecked
50109♠9♦ 183♥7♣4♠ 14 doubled00× the bet
4910A♥3♥ 145♣2♥9♥9♠ 25 bust00× the bet
48103♦A♣4♣ 18K♠5♦ 1500× the bet
471010♥5♣J♠ 252♣10♦4♦3♠ 19202× the bet
46102♣4♣A♣ 178♠10♥ 18202× the bet
4510J♥Q♦ 203♦7♠3♦Q♣ 23 bust00× the bet
441010♦10♦ 202♣Q♦K♣ 22 bust00× the bet
4310J♥4♣K♦ 247♦Q♥ 17202× the bet
42106♥J♣K♠ 262♣6♥A♠ 19202× the bet
41105♦K♦9♦ 248♠Q♦ 18202× the bet
40105♦7♣6♣ 186♠3♠3♥ 12 doubled00× the bet
39103♠6♠ 94♣8♠Q♣ 22 bust00× the bet
3810Q♣10♥ 209♣Q♠ 1900× the bet
3710Q♠4♥ 1410♦3♠K♦ 23 bust00× the bet
361010♥K♣ 209♣6♠ 15 surrendered50.5× the bet
3510J♦10♣ 207♦K♥ 1700× the bet
34105♠7♥Q♠ 227♦3♠2♣ 12 doubled404× the bet
33109♦7♠8♣ 246♥5♠2♣ 13 doubled404× the bet
3210J♣5♣A♥Q♥ 267♥K♠ 17202× the bet
31104♣6♦ 10Q♠A♣ 21 blackjack252.5945× the bet
3010Q♦4♣ 1410♦A♠ 21 blackjack252.5945× the bet
29102♦7♥A♠ 204♥7♣5♥ 16 doubled00× the bet
28108♥3♠J♠ 217♣K♣ 1700× the bet
2710J♣7♣ 17Q♣10♣ 20202× the bet
2610Q♦7♥ 179♦8♦ 17101× the bet
2510A♣3♥6♦ 2010♦7♦ 1700× the bet
2410Q♥10♠ 209♣Q♣ 1900× the bet
23107♥2♠ 94♥3♥7♠A♦7♣ 22 bust00× the bet
22106♥5♦8♠ 193♣10♣ 1300× the bet
21106♥4♠9♥ 1910♣3♦ 1300× the bet
20104♠9♥7♣ 203♣A♠K♣ 1400× the bet
19108♣2♣ 108♠6♣Q♣ 24 bust00× the bet
181010♥4♣9♣ 232♣J♠7♦ 19202× the bet
171010♥9♥ 196♠Q♣ 16 surrendered50.5× the bet
16109♦J♦ 19Q♣4♦Q♣ 24 bust00× the bet
1510K♠6♥2♥ 188♠4♦3♠6♠ 21202× the bet
14106♠6♠8♦ 204♥Q♦ 1400× the bet
13107♥5♠5♠ 17A♣4♣2♥J♠ 17101× the bet
12109♦8♠ 174♣9♦8♥ 21202× the bet
11107♣6♦8♦ 219♠8♥ 1700× the bet
1010J♥4♥9♦ 23A♣8♥ 19202× the bet
9106♦A♣ 175♦9♠ 1400× the bet
81010♣7♠ 173♦9♥J♥ 22 bust00× the bet
7109♣10♣ 19K♣8♠ 1800× the bet
6106♣Q♠K♦ 267♦J♦ 17202× the bet
5107♥A♣ 18A♠5♦K♣10♠ 26 bust00× the bet
4109♠2♣5♦4♣ 203♦2♦6♣5♥5♦ 21202× the bet
3108♥9♦ 17A♦9♣ 20202× the bet
210A♦9♣ 209♠6♠3♠ 1800× the bet
1105♣J♦4♦ 197♠9♥ 1600× 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
58f7b85bd16853cc1229fb6014a9768bf46aa57fc93981a07e657d310f89327f
Seed
b46bdeaa319ef8310063d2ca46ffe078c6dde43ac1c1bf8676d9719738f01de8 SHA-256 of "degen.match.seed.v1", a zero byte and the 32 seed bytes is the seed hash.
Bettor's seed
4d770927257ae39daee8872803f62124
Commitment
Batch 72,245, Merkle root 02070a015b37cb286cc29eb76e20de899f0a62f0a25875462a8d865a25ef9e93. Recorded by Degen Protocol; on-chain publication is not available yet. See this batch and its Merkle tree
Merkle path
  1. 6d53749d7d27d57e5d7ba7ab2b344dfe112711c042930b3913f5089ca7848d36
  2. ab948c9456d70d99a6d061fb51cb3729020402f50db21884371df06d6ed5ce7a
  3. db68111c73d59f1e7293ae1552d9b1cfe2787b23edb80deba34ff31902aab87c
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.