Degen Protocol
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Session against the house

Blackjack

ended Play money · 2415fcb5bdf495fb9ba79f3bf7b422d9

Watch the replayThe handsThe rulesCheck it is fair

gbbagainst the house
Hands played
200
Wagered
2,300 play
Returned
2,240 play
Bettor's net
-60 play
Return
97.39%

Results by hand

Final
Hands
200
played
Pace
20.7/min
overall 21.0/min
Biggest swing
+50
Seat 1 · hand 20

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

SeatNetRateStreak
gbb-60-30.0 play/100lost 1

Last hands

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

The hands

Newest first
#BetDealerHandsPaidChecked
100108♠Q♦ 1810♥K♥ 20202× the bet
99102♥K♠2♥3♦ 17Q♥9♥ 19202× the bet
9810Q♠A♣ 217♣8♠ 1500× the bet
97103♦2♥5♦K♣ 202♦3♣J♣ 1500× the bet
96108♥6♥ 1410♠A♥ 21 blackjack252.5945× the bet
951010♥K♣ 207♥10♠ 1700× the bet
94105♣A♦9♠Q♥ 259♦K♦ 19202× the bet
9310Q♠A♣ 214♦6♦ 1000× the bet
92108♠5♦7♠ 203♣7♥3♥ 13 doubled00× the bet
91109♣2♣9♦ 20K♦Q♠ 20101× the bet
90107♥J♦ 1710♥3♥5♠ 18202× the bet
89107♠6♣3♦9♣ 255♠6♠5♣ 16 doubled404× the bet
8810A♣5♦3♠ 19Q♠10♥ 20202× the bet
87108♠2♠2♥A♦6♥ 199♣2♣6♠ 17 doubled00× the bet
8610K♠A♦ 216♣8♠ 1400× the bet
85105♠8♠4♦ 176♣J♣ 1600× the bet
8410A♣10♣ 21Q♦6♠ 1600× the bet
83105♥5♥6♠7♠ 237♠A♠3♣ 21 doubled404× the bet
82108♠9♥ 174♣5♣9♥ 18202× the bet
81108♣A♣ 193♥3♣10♥7♠ 23 bust00× the bet
80104♣7♣4♠9♦ 248♥A♦ 19202× the bet
7910K♣10♠ 20K♣7♠ 1700× the bet
7810J♣J♣ 20Q♦A♣ 21 blackjack252.5945× the bet
7710A♥4♣ 155♦3♣5♠10♦ 23 bust00× the bet
76103♠4♦ 7K♣A♠ 21 blackjack252.5945× the bet
75106♥4♠A♠ 217♦10♥ 1700× the bet
7410Q♣8♦ 183♥3♠K♦10♦ 26 bust00× the bet
73107♦3♠4♣8♦ 22A♥Q♠ 21A♠J♠ 21404× the bet
7210A♦5♥10♥5♣ 213♥7♥2♠6♣ 1800× the bet
71105♣A♣8♥A♦8♣ 23K♦4♣ 14202× the bet
7010A♠7♠ 183♦J♠K♠ 23 bust00× the bet
69109♥A♣ 20K♦J♦ 20101× the bet
6810A♥10♥ 21K♣2♠ 1200× the bet
6710A♦3♣3♦ 17K♥10♥ 20202× the bet
6610K♦8♦ 186♥10♣ 16 surrendered50.5× the bet
6510J♦10♣ 20A♣K♣ 21A♣K♠ 21404× the bet
64105♥4♥10♠ 19Q♠J♥ 20202× the bet
63102♠3♠J♦8♠ 23A♥6♦Q♠ 17202× the bet
62103♦7♠J♥ 204♥A♥9♠ 1400× the bet
6110J♣K♥ 205♦A♥10♠3♠ 1900× the bet
60104♥9♣4♦ 178♣A♣ 19202× the bet
5910Q♥K♣ 207♦A♠10♣ 1800× the bet
5810J♣2♠ 122♥K♣Q♦ 22 bust00× the bet
57109♥6♣ 152♠7♠2♣2♥2♥9♥ 24 bust00× the bet
56106♥9♦6♥ 21J♠J♥ 2000× the bet
55107♥Q♠ 179♠8♥ 17101× the bet
54103♣A♠2♣4♦ 205♣3♥5♠ 1300× the bet
53106♦8♠Q♣ 245♦10♠ 15202× the bet
52107♦Q♣ 17A♣10♠ 21 blackjack252.5945× the bet
511010♦K♠ 204♣Q♠K♠ 24 bust00× 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
2705109530850d1eddda772608734d947c73bfb32c5a8995f29ad13bb2aeb94b
Seed
11d094b4d93c8460566266996213106de38896126cb537433b9770fe5583fd48 SHA-256 of "degen.match.seed.v1", a zero byte and the 32 seed bytes is the seed hash.
Bettor's seed
8b42efa1b14f3e2eaa38fb030ada41c5
Commitment
Batch 71,440, Merkle root 74b4a6a7bfeea5d81abfecd4be4659c6c057c6fa382b04a2e576a8f077412e62. Recorded by Degen Protocol; on-chain publication is not available yet. See this batch and its Merkle tree
Merkle path
  1. f3cf126b80bbeee504ef81deb626ba6a34a7d9931924bda63c8ea5da020a5b9e
  2. 5d923f4dd3955cb5d9e75bf3aaee6ec0cac8af765010ae96898640cca4e939c9
  3. b617c7a8bf661f5778057c482f839da6703e89c26b9d7381f833d2cb133cb1d3
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.