Degen Protocol
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Session against the house

Blackjack

ended Play money · 6d82fce369653ff693a7a988669adbf3

Watch the replayThe handsThe rulesCheck it is fair

gbbagainst the house
Hands played
200
Wagered
2,270 play
Returned
2,700 play
Bettor's net
+430 play
Return
118.94%

Results by hand

Final
Hands
200
played
Pace
24.0/min
overall 21.1/min
Biggest swing
+30
Seat 1 · hand 123

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

SeatNetRateStreak
gbb+430+215.0 play/100lost 4

Last hands

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

The hands

Newest first
#BetDealerHandsPaidChecked
5010A♠5♥ 162♦10♦K♣ 22 bust00× the bet
49103♠3♣A♠ 172♥6♣A♠ 19202× the bet
48106♦9♣10♣ 259♦A♦ 209♠6♥ 15404× the bet
4710Q♠10♦ 202♠5♠8♣5♠ 20101× the bet
4610Q♠4♥8♥ 226♠7♠2♠5♠ 20202× the bet
4510A♣Q♥ 217♠4♦ 1100× the bet
44108♠3♣4♦9♠ 24A♦9♥ 20202× the bet
43109♦9♠ 185♦J♦J♦ 25 bust00× the bet
42106♠Q♠A♠ 176♦Q♥ 1600× the bet
41109♥8♣ 178♦6♠9♠ 23 bust00× the bet
4010Q♥7♠ 17Q♠Q♠ 20202× the bet
3910K♥A♦ 214♣10♣ 1400× the bet
38104♥K♠8♣ 224♥2♥2♠8♠ 16202× the bet
371010♣2♦6♣ 18K♥4♦4♣ 18101× the bet
36108♥K♦ 183♣3♦3♠3♦Q♠ 22 bust00× the bet
35103♣4♣3♣J♣ 20Q♥Q♦ 20101× the bet
3410Q♦5♣ 15K♦5♣ 15 surrendered50.5× the bet
3310Q♣10♥ 208♠2♣3♦6♣ 1900× the bet
32108♥6♠9♠ 233♦7♦7♥ 17 doubled404× the bet
31102♦6♥5♠2♠4♥ 195♠A♦9♠ 1500× the bet
30102♠5♦J♦ 177♦4♥K♥ 21 doubled404× the bet
2910J♦A♦ 21A♣2♣ 1300× the bet
28105♠K♦8♥ 237♣3♣9♣ 19 doubled404× the bet
2710J♥5♣10♥ 255♦3♦2♣5♦2♦ 17202× the bet
2610A♣8♦ 193♥K♠6♣ 19101× the bet
251010♠J♥ 206♥J♣ 16 surrendered50.5× the bet
24106♣5♠2♦9♣ 22K♣2♣ 12202× the bet
2310Q♥9♠ 197♣8♥ 15 surrendered50.5× the bet
2210A♣4♦ 153♥6♣5♠9♣ 23 bust00× the bet
21109♦5♣ 14J♣3♠2♣Q♠ 25 bust00× the bet
20109♣8♣ 179♣6♦A♦7♦ 23 bust00× the bet
1910K♠2♦ 12J♥6♦ 16 surrendered50.5× the bet
18109♠7♠2♠ 188♥2♣Q♠ 20 doubled404× the bet
17103♦J♦6♦ 196♦5♦3♠ 14 doubled00× the bet
16107♠Q♠ 1710♥K♥ 20202× the bet
1510J♠A♥ 21Q♠3♠ 1300× the bet
14109♣8♥ 17Q♣4♠J♣ 24 bust00× the bet
13102♣9♥2♦A♦2♥K♠ 268♥Q♦ 18202× the bet
1210Q♦4♠2♠2♠ 1810♠4♦4♣ 18101× the bet
1110J♥6♣6♠ 22Q♠Q♥ 20202× the bet
10109♥3♦5♥ 172♥3♠A♥7♥5♠ 18202× the bet
910A♥5♣K♥A♠ 175♦7♦7♠ 19202× the bet
8109♣J♦ 192♠Q♦Q♥ 22 bust00× the bet
710J♥Q♦ 208♥10♣ 1800× the bet
610Q♣A♠ 214♥Q♣ 1400× the bet
5109♦3♣5♣ 177♠10♦ 17101× the bet
4105♣6♣ 11A♠10♥ 21 blackjack252.5945× the bet
3105♠4♠8♣ 17J♣Q♠ 20202× the bet
2108♣K♠ 189♣4♠5♦ 18101× the bet
1102♠6♣J♦ 182♣5♣4♣2♦ 1300× 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
d500103231ef1428ccd3dd410dd92b46d1977bab845b8e381a26d36cf26702a0
Seed
8bc1fba78c7f69c96ce81ca4493bca302e97aa05de2eb7e403c86254abd8f018 SHA-256 of "degen.match.seed.v1", a zero byte and the 32 seed bytes is the seed hash.
Bettor's seed
29d05bb2c25996888c5a4ba10ffa634c
Commitment
Batch 68,802, Merkle root 16cf79592f925597c099e537cbd8c9ce1a0b9fbb35a36d32c672cad387e155b2. Recorded by Degen Protocol; on-chain publication is not available yet. See this batch and its Merkle tree
Merkle path
  1. f720983e26fa74028c2d1a60af898dc87f50aee3dcfab660b79cb3f5240b06fc
  2. 74101c7b6a56ae5f616727a6b1b200353cc2fe69fdce9dcfa321f6dfaf625819
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.