Degen Protocol
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Session against the house

Blackjack

ended Play money · 70902890605486a73ae46df0647ff010

Watch the replayThe handsThe rulesCheck it is fair

gbbagainst the house
Hands played
200
Wagered
2,230 play
Returned
2,110 play
Bettor's net
-120 play
Return
94.62%

Results by hand

Final
Hands
200
played
Pace
18.5/min
overall 19.4/min
Biggest swing
+30
Seat 1 · hand 161

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

SeatNetRateStreak
gbb-120-60.0 play/100lost 1

Last hands

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

The hands

Newest first
#BetDealerHandsPaidChecked
50109♠10♦ 197♦A♥Q♣ 1800× the bet
4910A♣10♠ 218♣10♦ 1800× the bet
48109♠7♠ 16Q♦A♦ 21 blackjack252.5945× the bet
4710J♦K♣ 209♦8♠ 1700× the bet
4610Q♥K♥ 204♥2♥8♣10♦ 24 bust00× the bet
4510K♣5♣A♥A♠ 17J♦K♥ 20202× the bet
4410Q♦5♣A♥4♠ 20Q♣9♥ 1900× the bet
4310J♦Q♥ 203♥3♥5♥7♦ 1800× the bet
4210Q♦K♣ 203♦8♣10♦ 21 doubled404× the bet
41105♥8♣3♣J♣ 264♦7♥7♣ 18 doubled404× the bet
40108♠A♦ 197♦Q♠ 1700× the bet
391010♠3♥5♥ 182♥Q♠5♠ 1700× the bet
38102♥Q♦5♠ 172♦3♥8♠ 1300× the bet
37105♣5♠7♣ 17Q♦6♣ 1600× the bet
36104♥A♥10♠3♥ 187♣3♦Q♣ 20 doubled404× the bet
35103♣3♥8♠5♠ 193♣K♦ 1300× the bet
34104♣Q♠7♣ 21J♣7♥ 1700× the bet
33107♣8♦9♦ 246♦2♦4♦6♥ 18202× the bet
3210A♠10♣ 21Q♣2♠ 1200× the bet
31109♠K♦ 19Q♥K♣ 20202× the bet
3010Q♣5♥9♠ 24K♦9♥ 19202× the bet
2910A♦J♠ 219♣4♠ 1300× the bet
2810J♣A♠ 217♦4♦ 1100× the bet
27104♠K♥J♥ 242♥7♦Q♥ 19 doubled404× the bet
26103♦7♠10♣ 207♥A♥3♥ 21 doubled404× the bet
2510Q♦9♦ 19J♥2♦A♠7♦ 20202× the bet
2410Q♥Q♣ 209♦2♦6♠ 17 doubled00× the bet
23103♦Q♥6♣ 198♠J♠ 188♣9♠ 178♥3♥J♦ 21 doubled404× the bet
22105♥K♦A♠3♥ 194♥3♦3♥Q♦ 20202× the bet
21108♥4♠ 128♦4♣K♣ 22 bust00× the bet
20109♦8♥ 175♥2♠5♣5♣ 17101× the bet
19108♣3♣ 119♥5♥J♥ 24 bust00× the bet
1810Q♦3♥ 13K♣4♦K♣ 24 bust00× the bet
17102♦8♦Q♥ 2010♣4♦ 1400× the bet
16109♦J♥ 192♦K♠J♠ 22 bust00× the bet
15108♣A♣ 1910♠K♦ 20202× the bet
14105♥A♦8♠J♦ 24Q♠6♣ 16202× the bet
13106♥2♣K♣ 186♥K♣ 1600× the bet
1210J♥9♠ 19A♥10♠ 21 blackjack252.5945× the bet
1110K♣8♠ 187♠K♣ 1700× the bet
101010♠5♣ 159♠6♠ 15 surrendered50.5× the bet
9107♣K♦ 17A♠4♥Q♥6♦ 21202× the bet
8102♣A♣6♥ 192♠Q♠5♦ 1700× the bet
710K♠7♠ 179♠5♣9♥ 23 bust00× the bet
6102♥7♦3♣K♥ 227♠6♣ 13202× the bet
5107♥Q♣ 175♠7♦7♦ 19202× the bet
41010♥7♥ 179♣2♠2♣ 13 doubled00× the bet
3104♠9♦8♣ 21J♥2♠ 1200× the bet
2109♣A♣ 202♠6♣7♣5♥ 20101× the bet
1109♠J♥ 199♠J♦ 19101× 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
1121539f0437881f011e9c238174ca05e131885ba1cc0f981da404bd5465ea53
Seed
17fad1e9e5d2ee677d0793e7b493052c7f3d3c9d817147ba57ddb9b8916f67f8 SHA-256 of "degen.match.seed.v1", a zero byte and the 32 seed bytes is the seed hash.
Bettor's seed
93f31ec2578cae45baefce3aa868af07
Commitment
Batch 66,322, Merkle root ad00f91f89c270a4e26da40bc0d1d7de34bf6793d4f5a62eef9478e3b34b58c9. Recorded by Degen Protocol; on-chain publication is not available yet. See this batch and its Merkle tree
Merkle path
  1. c9b4d7769157292df4b4dde26ca1b6acaaea824a63c75354fad94fc9848a1406
  2. 11fd2432e4c03d2a16aeeff5dbe2fd960e1cbf786c2fc9c7ebf70b7b60b4c2a2
  3. e9351199070a67178af0df83ed3b06530a05ef9070465a34ca4f8d27f67899f7
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.