Degen Protocol
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Session against the house

Blackjack

ended Play money · 7dc5fd8765ad9a4c29242356475d2d0d

Watch the replayThe handsThe rulesCheck it is fair

gbbagainst the house
Hands played
200
Wagered
2,340 play
Returned
2,360 play
Bettor's net
+20 play
Return
100.85%

Results by hand

Final
Hands
200
played
Pace
21.2/min
overall 20.8/min
Biggest swing
+20
Seat 1 · hand 3

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

SeatNetRateStreak
gbb+20+10.0 play/100won 2

Last hands

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

The hands

Newest first
#BetDealerHandsPaidChecked
10010A♥Q♣ 219♣5♠ 1400× the bet
99106♥9♥9♣ 242♦Q♥ 12202× the bet
981010♣7♣ 174♠A♣7♦J♦ 22 bust00× the bet
9710J♥J♦ 205♠2♣7♣4♠ 1800× the bet
9610J♠6♥9♦ 258♦9♣ 17202× the bet
9510Q♠A♥ 216♠2♣ 800× the bet
94106♦2♥7♦8♣ 237♥4♥A♣ 12 doubled404× the bet
93104♥J♥A♥J♠ 252♠3♠7♠ 122♠K♠ 12404× the bet
92108♦10♥ 18A♠6♠J♣ 1700× the bet
91102♦3♥7♣7♥ 194♥Q♦ 1400× the bet
90105♦3♥6♣J♥ 24Q♣9♣ 19202× the bet
8910K♣4♠ 148♦7♥ 15 surrendered50.5× the bet
88109♠4♣ 133♦3♣J♠J♦ 26 bust00× the bet
87103♦7♣8♦ 184♥A♦A♥J♠ 1600× the bet
86102♣5♣4♠J♦ 214♦9♦ 1300× the bet
85105♠2♠7♦3♣ 172♥3♠K♠ 1500× the bet
84104♣5♥J♥ 19J♦3♦ 1300× the bet
83106♠2♠ 810♥A♠ 21 blackjack252.5945× the bet
82106♦Q♣2♣ 186♥4♠4♣ 14 doubled00× the bet
811010♠2♦3♥6♥ 21Q♠4♣5♣ 1900× the bet
8010K♣K♣ 20Q♠3♠K♣ 23 bust00× the bet
791010♣K♣ 20Q♠10♠ 20101× the bet
78106♥9♣6♦ 214♣3♣4♣Q♣ 21101× the bet
77102♦J♠A♠2♠Q♣ 255♦3♦Q♠ 18202× the bet
76107♥J♠ 1710♥5♥K♣ 25 bust00× the bet
75107♦8♠10♣ 25A♠9♥ 20202× the bet
741010♦A♣ 213♠J♦ 1300× the bet
73107♦6♦K♦ 2310♦7♣ 17202× the bet
721010♦3♥ 13J♠A♥ 21 blackjack252.5945× the bet
7110Q♦3♣A♦K♠ 247♠2♠9♥ 18202× the bet
70109♣7♣ 164♦9♥K♣ 23 bust00× the bet
69106♥10♠3♦ 195♦7♣ 1200× the bet
6810K♥4♥3♥ 176♣6♣6♦ 18202× the bet
6710K♦5♠J♦ 25J♣J♠ 20202× the bet
6610K♣4♥9♠ 236♦6♣7♠ 19202× the bet
65104♠Q♥K♣ 247♠3♠9♠ 19 doubled404× the bet
64105♦J♠J♥ 25K♦Q♥ 20202× the bet
631010♦A♥ 21Q♠6♥ 1600× the bet
62103♣Q♠K♣ 233♠6♣3♦ 12 doubled404× the bet
6110K♣8♠ 186♥5♥10♣ 21 doubled404× the bet
60105♠A♣6♠5♠ 174♦6♣4♣ 14 doubled00× the bet
5910K♠6♦ 16A♦J♦ 21 blackjack252.5945× the bet
58104♥Q♣9♠ 2310♦5♠ 15202× the bet
57104♦5♦J♦ 198♠A♥ 19101× the bet
5610J♥J♦ 208♦10♠ 1800× the bet
551010♥8♠ 189♣6♣ 15 surrendered50.5× the bet
5410K♦A♦ 213♣10♦ 1300× the bet
53105♥Q♦J♥ 258♦4♦ 12202× the bet
5210K♥6♠7♥ 237♦5♠6♣ 18202× the bet
51103♦6♦2♥J♥ 217♥3♥8♠ 18 doubled00× 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
9e152b616defe7c3552dc45413b697302c76db6fc8355d1dda4a1ddd57c5630d
Seed
1629d5c9978edcc3052aa3f9a0be40cfa17f652c43b3b587a7f4e7aac0877d49 SHA-256 of "degen.match.seed.v1", a zero byte and the 32 seed bytes is the seed hash.
Bettor's seed
554f7a2c15277c6f21793a659abde4c0
Commitment
Batch 66,639, Merkle root 223c2370b21ae22b905450876dae8c12a8fd2f5a207be0e52f613c5ae64d9a4f. Recorded by Degen Protocol; on-chain publication is not available yet. See this batch and its Merkle tree
Merkle path
  1. ea2e4a8c9f76462744968dd13894ec99bb536693554ad2c8bd8868d2526296e1
  2. d3904934e0fee203d4a3a7e323dd4f28e0da0fcd0928cc70755b0cfc14df5959
  3. a8651eaf6908fd0e98c49c3a22d46bd9c941b298b9dfc8018e4be13408e19381
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.