Degen Protocol
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Session against the house

Blackjack

ended Play money · 4113f13a241dba8a042b0c692660e2e1

Watch the replayThe handsThe rulesCheck it is fair

gbbagainst the house
Hands played
200
Wagered
2,190 play
Returned
1,955 play
Bettor's net
-235 play
Return
89.27%

Results by hand

Final
Hands
200
played
Pace
19.6/min
overall 20.3/min
Biggest swing
-20
Seat 1 · hand 16

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

SeatNetRateStreak
gbb-235-117.5 play/100lost 1

Last hands

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

The hands

Newest first
#BetDealerHandsPaidChecked
100108♥K♥ 1810♠10♥ 20202× the bet
99104♥10♠3♣ 174♦2♠9♠ 1500× the bet
98104♦8♥K♣ 227♣8♣ 15202× the bet
97106♥K♣5♦ 215♣2♣2♣A♠ 2000× the bet
9610A♣7♥ 18A♥10♥ 21 blackjack252.5945× the bet
95103♦6♣K♦ 194♥2♥Q♦ 1600× the bet
9410A♦2♥Q♠A♣5♦ 198♥9♥ 1700× the bet
93105♦7♠3♠6♥ 218♠K♣ 1800× the bet
9210A♣A♥ 125♠10♠J♠ 25 bust00× the bet
91108♥6♥A♠3♦ 184♥6♣5♣ 15 doubled00× the bet
90108♦K♠ 18Q♥3♠J♠ 23 bust00× the bet
89108♥6♥ 14A♠10♥ 21 blackjack252.5945× the bet
8810A♦6♦ 1710♠5♠Q♥ 25 bust00× the bet
8710K♠2♥8♦ 203♥A♦4♠6♦6♥ 20101× the bet
86102♠J♥2♥3♦ 173♦Q♦ 1300× the bet
85108♠4♦8♠ 20A♥4♠5♣ 20101× the bet
84109♠5♠Q♥ 24K♣K♥ 20202× the bet
831010♥2♣8♣ 208♦J♥ 1800× the bet
82103♠3♥5♦6♥ 179♥K♥ 19202× the bet
81107♠6♠6♦ 193♠7♦7♦ 17 doubled00× the bet
8010K♣Q♠ 20A♠9♠ 20101× the bet
791010♣8♣ 18A♠5♦8♦3♠ 1700× the bet
78107♣2♥7♥9♥ 256♥10♥4♣ 20202× the bet
77107♥7♥10♥ 24K♣Q♥ 20202× the bet
76104♥6♦A♦ 213♠K♦ 1300× the bet
75109♠J♥ 194♦A♠A♣4♠ 20202× the bet
7410Q♦Q♣ 207♣7♥2♦Q♠ 26 bust00× the bet
7310J♠7♦ 178♥3♣Q♦ 21 doubled404× the bet
7210K♥5♥6♠ 2110♣7♥ 1700× the bet
71104♥K♦4♣ 18K♣2♥ 1200× the bet
70105♥A♥2♥ 183♠2♠3♣A♣ 19202× the bet
6910Q♣6♣ 164♦4♠8♠7♦ 23 bust00× the bet
68109♥K♦ 1910♠10♣ 20202× the bet
6710K♣9♥ 19Q♥10♦ 20202× the bet
6610J♦3♦10♦ 237♥2♦9♥ 18202× the bet
65104♣7♠5♠7♦ 232♠4♥2♦3♥7♦ 182♠6♣Q♠ 18404× the bet
64105♣3♣J♦ 187♣9♦ 1600× the bet
6310K♣3♣ 137♣2♣3♥A♦Q♣ 23 bust00× the bet
62103♣10♠J♦ 2310♥10♣ 20202× the bet
61104♠3♦4♠8♠ 193♣4♠Q♦ 1700× the bet
6010Q♣A♥ 21A♠4♣ 1500× the bet
59102♥5♠J♥ 175♣4♠7♠ 1600× the bet
58102♣A♠2♦7♠8♠ 20A♠8♥ 1900× the bet
571010♦8♥ 1810♥K♥ 20202× the bet
5610K♣3♦7♦ 206♠4♠3♠6♥ 1900× the bet
551010♣K♠ 20Q♠Q♦ 20101× the bet
54107♣K♠ 177♣10♠ 17101× the bet
53105♦J♠6♦ 216♣A♣2♦ 19 doubled00× the bet
5210K♣Q♣ 202♦J♦3♦J♥ 25 bust00× the bet
511010♣A♣ 21J♥5♠ 1500× 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
53d8bcc6fd0ccf1c852c0782c2422ddaaed1c9918ed70bb08f1f254ddae23be8
Seed
dcafde8875616d7e061a371327cd9a52a1436bbaa7e88b1c5cf986844920d8b2 SHA-256 of "degen.match.seed.v1", a zero byte and the 32 seed bytes is the seed hash.
Bettor's seed
ce52d60dadc4ad62df3a021ca353b516
Commitment
Batch 71,826, Merkle root 08d9e20120b862d0a985479ff9f9fab089cee70ba441d9e3b7ee4b1e293ba24e. Recorded by Degen Protocol; on-chain publication is not available yet. See this batch and its Merkle tree
Merkle path
  1. 67c0850acd7e046684da63b19408d7c57b2e4e4384858174f029ccb9ba46a0ea
  2. 39992e00925c33891fc0322605f61e26b0e00f502435f494919ec1e96bc62040
  3. 7c77c55bb55357acb251302199f16530690421cb6093116607d99b8e7b169497
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.