Degen Protocol
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Session against the house

Blackjack

ended Play money · 61ebb1374b7835d0039bc5edf6b25127

Watch the replayThe handsThe rulesCheck it is fair

gbbagainst the house
Hands played
200
Wagered
2,310 play
Returned
2,100 play
Bettor's net
-210 play
Return
90.91%

Results by hand

Final
Hands
200
played
Pace
20.4/min
overall 19.4/min
Biggest swing
+20
Seat 1 · hand 6

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

SeatNetRateStreak
gbb-210-105.0 play/100lost 3

Last hands

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

The hands

Newest first
#BetDealerHandsPaidChecked
50109♥5♠10♥ 24A♦7♥9♠ 17202× the bet
4910Q♠6♣ 16A♦10♥ 21 blackjack252.5945× the bet
48103♠7♦10♦ 20Q♣9♥ 1900× the bet
4710J♥Q♣ 203♣6♦J♥ 1900× the bet
46103♥5♣K♠ 186♦K♣ 1600× the bet
451010♦8♦ 183♣J♠4♠ 1700× the bet
441010♣2♦5♣ 172♦K♠6♥ 18202× the bet
43109♠7♣9♣ 2510♥10♣ 20202× the bet
42102♦2♣J♠A♠2♥ 17Q♣J♣ 20202× the bet
411010♦2♥A♥6♦ 192♦9♥3♦ 14 doubled00× the bet
4010J♥10♠ 2010♦2♠3♥6♣ 21202× the bet
39105♥K♥2♥ 172♥6♦K♥ 18202× the bet
38106♠4♠ 10K♦A♠ 21 blackjack252.5945× the bet
3710A♠Q♠ 21A♣3♦ 1400× the bet
361010♠J♥ 203♦A♦3♠A♣J♥ 1800× the bet
35108♣A♣ 199♠3♦4♥10♥ 26 bust00× the bet
3410K♣5♥ 157♥A♠7♦K♦ 25 bust00× the bet
3310J♣4♠8♦ 228♣3♠6♣ 17 doubled404× the bet
32106♠Q♠A♥ 174♥5♥10♦ 19 doubled404× the bet
31108♣9♠ 1710♥8♠ 18202× the bet
30104♠A♦J♠J♦ 2510♠3♦ 13202× the bet
29108♥4♥7♦ 19J♠10♣ 20202× the bet
2810Q♥6♥ 162♠10♥3♦7♣ 22 bust00× the bet
27102♦K♠3♣7♣ 229♥2♠5♥ 16 doubled404× the bet
2610J♦7♥ 173♥7♣5♦J♦ 25 bust00× the bet
2510Q♦10♠ 206♦5♣A♥ 12 doubled00× the bet
2410A♥5♥2♥ 184♥6♠8♦ 18101× the bet
2310Q♣6♥ 165♥K♣ 15 surrendered50.5× the bet
22103♥J♠A♦10♣ 247♠A♥A♠ 19 doubled7♥5♦10♦ 22 bust404× the bet
21109♠8♠ 173♠6♥5♠A♠9♣ 24 bust00× the bet
2010J♠10♠ 20K♦5♥ 15 surrendered50.5× the bet
19103♠7♣Q♥ 20Q♣4♦ 1400× the bet
18104♣J♠2♦A♣ 17K♦9♥ 19202× the bet
17105♣6♥K♣ 213♦A♣5♦ 19 doubled00× the bet
16106♣J♣6♥ 227♥3♦9♣ 19 doubled404× the bet
15103♣K♠9♣ 226♦8♥ 14202× the bet
14107♠J♠ 17Q♥3♣7♥ 20202× the bet
13106♥A♠ 178♦K♦ 18202× the bet
12102♠J♥4♠9♦ 25Q♥4♠ 14202× the bet
11104♠3♣2♦4♠3♦J♥ 267♥8♥ 15202× the bet
10107♣Q♦ 1710♦K♥ 20202× the bet
910J♦2♠ 12Q♦A♣ 21 blackjack252.5945× the bet
81010♣Q♥ 206♥4♠8♦ 1800× the bet
7106♥Q♣10♦ 267♥3♣10♥ 20 doubled404× the bet
6102♥4♣K♥J♠ 268♥J♣ 188♠Q♣ 18404× the bet
5104♦Q♥2♥10♠ 26Q♠7♦ 17202× the bet
4107♠2♦2♣2♠10♥ 23J♥3♦4♥ 17202× the bet
310K♦A♦ 219♦Q♠ 1900× the bet
2102♣3♦K♠K♣ 2510♠K♦ 20202× the bet
110K♥6♠3♥ 194♠2♣2♠9♦ 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
f562c63a20c5a3aa9f230aa7852615dabda90a0690ee5373d6faff1a34f7f82d
Seed
86e9b37595ef130a9bac4603259bd5e820241b7d922a59e142acfe506a4ab420 SHA-256 of "degen.match.seed.v1", a zero byte and the 32 seed bytes is the seed hash.
Bettor's seed
d6bba9eafacb536ab882726a1f29c265
Commitment
Batch 66,981, Merkle root 065fe51ee24b725251c15a50d8e06b801d009a617706dc040441a0e1ab946523. Recorded by Degen Protocol; on-chain publication is not available yet. See this batch and its Merkle tree
Merkle path
  1. 784975e9b7ced0e8a1ab2b43e13fb78b72d2ac65c865a94408a8ccea4dd648d8
  2. de50da1b28870aaf2cd4a4beab51a4621d72d20d1796c7f626efe1c0b8e253c3
  3. bbdb7f1558aba2408d7ede0f45ae5b418053640e7f7834397546a10ceab3d4ba
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.