Degen Protocol
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Session against the house

Blackjack

ended Play money · 13a0e1f1214fb2d240d5cdc8a08667ab

Watch the replayThe handsThe rulesCheck it is fair

gbbagainst the house
Hands played
200
Wagered
2,260 play
Returned
2,380 play
Bettor's net
+120 play
Return
105.31%

Results by hand

Final
Hands
200
played
Pace
19.2/min
overall 19.9/min
Biggest swing
+30
Seat 1 · hand 97

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

SeatNetRateStreak
gbb+120+60.0 play/100won 3

Last hands

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

The hands

Newest first
#BetDealerHandsPaidChecked
5010A♦J♦ 21K♥6♦ 1600× the bet
4910J♠10♣ 20J♥6♠ 16 surrendered50.5× the bet
48105♠2♥4♦7♣ 183♦A♦2♦ 16 doubled00× the bet
47109♦10♣ 198♦A♣ 19101× the bet
4610J♥3♠9♣ 222♣K♣7♦ 19202× the bet
45106♣10♥K♣ 268♦9♦ 178♣A♥ 19404× the bet
44107♦8♥10♠ 258♠5♦7♠ 20202× the bet
43107♦8♦9♦ 247♦10♣ 17202× the bet
4210K♥6♥ 167♦5♣3♣8♠ 23 bust00× the bet
41108♠10♠ 182♥9♠3♠ 14 doubled00× the bet
401010♦6♠ 168♣4♠2♠2♦10♣ 26 bust8♣7♥9♠ 24 bust00× the bet
391010♣Q♠ 207♦10♥ 1700× the bet
381010♠J♣ 209♥5♥5♠ 1900× the bet
371010♣9♣ 1910♥9♥ 19101× the bet
36108♦A♣ 199♣A♦ 20202× the bet
3510J♦4♣ 145♠9♥J♥ 24 bust00× the bet
3410Q♠9♦ 196♠3♣9♥ 1800× the bet
33108♦2♥5♠3♥ 187♥3♠5♥ 15 doubled00× the bet
32102♥J♦3♦K♣ 258♣5♣ 13202× the bet
31104♦8♥2♥Q♠ 2410♦6♥ 16202× the bet
3010A♥J♥ 216♦8♥ 1400× the bet
29105♥K♥Q♥ 254♦J♣ 14202× the bet
2810A♣6♦ 179♥10♠ 19202× the bet
27105♥10♦9♦ 245♥8♦ 13202× the bet
26103♦Q♠9♠ 224♥J♥ 14202× the bet
25106♣Q♥J♠ 26J♠8♣ 18202× the bet
24103♣5♥3♦9♣ 20K♣2♦2♠ 1400× the bet
2310J♦6♠9♠ 25A♦Q♥ 21A♣7♣ 18404× the bet
22105♠8♣3♥Q♥ 266♦5♣3♥ 14 doubled404× the bet
21109♥A♣ 204♠3♥9♣3♣ 1900× the bet
2010Q♠9♦ 196♠9♦ 15 surrendered50.5× the bet
19106♦7♠7♠ 2010♠7♥ 1700× the bet
18108♥A♦ 195♣8♥3♥10♦ 26 bust00× the bet
1710A♦A♣ 122♥2♥4♦3♥3♠J♣ 24 bust00× the bet
16105♣6♣4♣5♣ 204♥3♣6♥ 1300× the bet
15107♠9♠ 166♥9♣A♠Q♠ 26 bust00× the bet
14106♦K♠Q♣ 268♥6♦ 14202× the bet
13109♠6♦ 1510♦6♠ 16 surrendered50.5× the bet
12106♠Q♣2♥ 18K♣8♥ 18101× the bet
11107♣5♠4♣7♣ 234♠5♠Q♦ 19202× the bet
1010A♣K♦ 21K♥8♠ 1800× the bet
9105♣7♠K♥ 22J♣9♣ 19202× the bet
8103♠J♣7♣ 20Q♣2♣A♥ 1300× the bet
71010♦K♠ 20A♠2♠K♦J♣ 23 bust00× the bet
610A♠J♠ 213♣5♥ 800× the bet
5108♥J♠ 184♦9♦3♠3♥ 19202× the bet
4108♦3♠4♣4♣ 192♣6♣9♠ 1700× the bet
3102♣3♣6♠3♦7♦ 212♠9♦3♥ 14 doubled00× the bet
210A♦6♣ 176♥2♥8♦Q♣ 26 bust00× the bet
1106♣4♠9♣ 19J♣5♣ 1500× 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
dffbabbf32f2625c610b87e6ea224ae4b7d9bcfe586a38100e03a14a76b64580
Seed
a053bba149a6fee07c9ea3a948935687a009e574d0fc59164b51bab1d7ab4f15 SHA-256 of "degen.match.seed.v1", a zero byte and the 32 seed bytes is the seed hash.
Bettor's seed
6385468f792c6655be17ff97942ccb08
Commitment
Batch 70,051, Merkle root 61ca835d0db2467aea2d1a86b59670a8ff1012cebcd469cdc328f4fad9ca4962. Recorded by Degen Protocol; on-chain publication is not available yet. See this batch and its Merkle tree
Merkle path
  1. fe4a7626f1ff0d9ad4f18c9b942313537b0ebfa5df8ecbd0956e008764a2f70b
  2. ea68aa3b4ce8752c5c70b97a582a0a38c5fde075f7251d3b10b182057e61d940
  3. ff705ed8dd75341fb6f3f7761f05d0bfe101338fbadb8a641d7e11b15f00e88b
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.