Degen Protocol
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Session against the house

Blackjack

ended Play money · 6531260cfe5f9ea8501c68bc334fb063

Watch the replayThe handsThe rulesCheck it is fair

gbbagainst the house
Hands played
200
Wagered
2,240 play
Returned
2,170 play
Bettor's net
-70 play
Return
96.88%

Results by hand

Final
Hands
200
played
Pace
21.5/min
overall 19.6/min
Biggest swing
+30
Seat 1 · hand 70

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

SeatNetRateStreak
gbb-70-35.0 play/100won 1

Last hands

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

The hands

Newest first
#BetDealerHandsPaidChecked
50106♠8♥J♦ 243♣10♥ 13202× the bet
491010♣3♦ 13A♣Q♣ 21 blackjack252.5945× the bet
48108♥2♠Q♠ 20K♦7♥ 1700× the bet
47109♣6♦K♥ 25A♥8♠ 19202× the bet
4610A♣9♠ 207♥J♦ 1700× the bet
45106♠5♦Q♠ 219♦K♣ 1900× the bet
441010♣J♥ 20A♠J♣ 21 blackjack252.5945× the bet
43106♠9♣3♦ 184♣J♦ 144♦K♦ 1400× the bet
42103♦8♠5♣J♠ 2610♥8♣ 18202× the bet
41109♠3♣Q♣ 22J♥5♥5♦ 20202× the bet
40106♣A♠ 172♥7♣2♣ 11 doubled00× the bet
39108♠9♠ 176♦3♣4♣3♣6♣ 22 bust00× the bet
3810J♦10♥ 208♠K♠ 1800× the bet
3710J♦2♦ 1210♠2♠2♥10♠ 24 bust00× the bet
36108♣4♣6♦ 18A♠K♣ 21A♦4♠ 15202× the bet
3510J♣6♦K♣ 26K♣10♠ 20202× the bet
341010♠6♠ 169♥3♥K♣ 22 bust00× the bet
33109♥5♣ 145♠Q♠K♥ 25 bust00× the bet
3210A♥5♠ 169♠4♣J♦ 23 bust00× the bet
31103♣4♥A♥ 185♣3♥2♣K♣ 20202× the bet
30106♠K♠J♥ 2610♠6♥ 16202× the bet
291010♠9♥ 192♣J♠10♦ 22 bust00× the bet
28102♣4♦3♠2♣5♦3♣ 1910♠3♦ 1300× the bet
27102♦2♠2♠6♥5♦ 173♠10♥ 1300× the bet
26108♦A♠ 19J♥6♠6♦ 22 bust00× the bet
2510A♠J♣ 21Q♠2♥ 1200× the bet
24105♦10♦A♠2♠ 186♥7♦ 1300× the bet
2310A♠K♦ 213♠5♥ 800× the bet
221010♥8♣ 184♠5♣6♣6♠ 21202× the bet
21109♠4♦8♠ 219♣6♦3♦ 1800× the bet
2010Q♠5♦A♣3♣ 194♦6♣8♥ 1800× the bet
1910J♠6♣10♦ 2610♥7♣ 17202× the bet
18102♦8♥6♣9♣ 25A♦7♠ 18202× the bet
17107♠7♣3♠ 178♥9♦ 17101× the bet
1610Q♣5♥7♣ 22A♥4♣Q♦3♣ 18202× the bet
151010♠3♣9♠ 223♠Q♣6♠ 19202× the bet
14107♥K♥ 176♣5♠8♠ 19 doubled404× the bet
13103♠10♥10♠ 236♥8♦ 14202× the bet
12108♥10♥ 18J♦10♣ 20202× the bet
1110Q♣Q♠ 206♦8♠A♣7♠ 22 bust00× the bet
101010♥Q♥ 209♥10♣ 1900× the bet
910J♥A♣ 217♥9♠ 1600× the bet
8107♥7♥5♥ 19J♣4♠3♥ 1700× the bet
7108♠K♣ 184♣K♥Q♠ 24 bust00× the bet
6103♦A♦3♠ 173♦5♣J♥ 18202× the bet
5105♣8♣J♥ 23Q♣J♦ 20202× the bet
4105♣3♦ 8A♥10♦ 21 blackjack252.5945× the bet
3108♦J♥ 183♠K♣4♠ 1700× the bet
2103♣9♠3♥8♦ 233♣8♥7♥ 18 doubled404× the bet
110Q♥K♠ 20J♠7♣ 1700× 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
d1851eeb44f5f4da18ff5e256461dd08d870bf0229ac9f54c8d4815043575b25
Seed
0ffc4f3b7beb958f1a8c14a74b10679ecb91948ff4a346450f07b2f77c158660 SHA-256 of "degen.match.seed.v1", a zero byte and the 32 seed bytes is the seed hash.
Bettor's seed
93361ba3f1fdccfde5054527e0a8b8f0
Commitment
Batch 67,438, Merkle root 0bc3eb8429ec3cca4d063227dee5a3f2e47770b4c869bac4d154c6f21956aea0. Recorded by Degen Protocol; on-chain publication is not available yet. See this batch and its Merkle tree
Merkle path
  1. 59722efb5a4482da109cb4c4062e33afa11d5334370ab16bfc68b82922528f47
  2. a3392a273887eeffc3747a0a62fe40dda2c0e146ca3f8b7bca03fb38c98f7794
  3. c653e763ea09224697a991a8015ca243f04b2f6e6a24910dbeedf291e13bfb4a
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.