Degen Protocol
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Session against the house

Blackjack

ended Play money · 353a5d804f8d6f0d613aebfa6febba80

Watch the replayThe handsThe rulesCheck it is fair

gbbagainst the house
Hands played
200
Wagered
2,150 play
Returned
2,095 play
Bettor's net
-55 play
Return
97.44%

Results by hand

Final
Hands
200
played
Pace
20.6/min
overall 20.7/min
Biggest swing
-20
Seat 1 · hand 26

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

SeatNetRateStreak
gbb-55-27.5 play/100lost 2

Last hands

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

The hands

Newest first
#BetDealerHandsPaidChecked
50106♦Q♦4♠ 20K♦5♣ 1500× the bet
49104♦2♥6♠7♠ 199♥6♥ 1500× the bet
48106♦9♣4♣ 1910♦K♦ 20202× the bet
47107♣8♦6♥ 214♥6♦3♠ 13 doubled00× the bet
461010♠7♠ 178♣3♦8♠ 19 doubled404× the bet
45106♥10♥6♥ 224♠K♠ 14202× the bet
4410J♥7♦ 17J♦A♣ 21 blackjack252.5945× the bet
43106♣9♦6♠ 21K♥8♣ 1800× the bet
42106♦5♣8♣ 195♣2♦A♠ 1800× the bet
4110K♠8♦ 189♠6♠ 15 surrendered50.5× the bet
401010♦J♦ 207♣4♣A♣ 12 doubled00× the bet
3910A♣9♦ 2010♠10♣ 20101× the bet
38109♠4♦ 134♣9♦J♥ 23 bust00× the bet
3710J♠Q♣ 208♠6♥8♠ 22 bust00× the bet
3610K♥8♣ 185♣A♣6♥3♥9♠ 24 bust00× the bet
3510Q♦6♥ 162♠K♠10♠ 22 bust00× the bet
3410K♠Q♣ 20K♠4♥6♠ 20101× the bet
3310K♦2♦ 126♦9♦ 15 surrendered50.5× the bet
32103♦K♦4♣ 173♦9♣7♥ 19202× the bet
31108♦10♦ 1810♦6♥Q♦ 26 bust00× the bet
30108♥10♣ 18K♦K♠ 20202× the bet
2910K♣3♣ 13K♥5♥ 15 surrendered50.5× the bet
28109♦3♠A♥9♥ 223♣K♣5♦ 18202× the bet
2710Q♠9♥ 197♦4♠2♠ 13 doubled00× the bet
26102♥K♠9♦ 215♦5♥Q♥ 20 doubled00× the bet
25105♠4♦7♥3♣ 19Q♣Q♠ 20202× the bet
24107♦3♦ 10A♠3♦3♠7♥2♥10♦ 26 bust00× the bet
23109♦10♣ 19J♣7♠ 1700× the bet
2210J♣5♠6♦ 21J♦Q♠ 2000× the bet
21107♣10♣ 179♣5♠8♥ 22 bust00× the bet
2010A♣6♠ 17K♣5♦Q♦ 25 bust00× the bet
19105♣K♣J♥ 259♠10♣ 19202× the bet
1810K♠8♣ 185♥4♣8♣ 1700× the bet
17107♥7♥9♦ 237♣J♠ 17202× the bet
16108♣K♠ 1810♦8♠ 18101× the bet
15103♥K♥Q♠ 239♥7♦ 16202× the bet
1410Q♣Q♥ 203♣A♣K♥10♣ 24 bust00× the bet
1310Q♣K♠ 209♦K♦ 1900× the bet
12108♥Q♣ 18A♠4♣3♥ 18101× the bet
1110Q♠3♦3♦3♦ 192♣A♠A♠2♠5♥ 21202× the bet
1010K♥5♣ 159♥7♠ 16 surrendered50.5× the bet
9105♠2♣Q♣ 1710♣4♣ 1400× the bet
810Q♥8♣ 18J♥9♥ 19202× the bet
710K♠9♠ 1910♥J♥ 20202× the bet
61010♥6♥6♥ 2210♥Q♦ 20202× the bet
510A♠3♠ 149♣3♠10♥ 22 bust00× the bet
4103♦5♣K♠ 18A♦2♦A♣8♠9♦ 21202× the bet
310J♥5♣10♠ 252♣10♥8♣ 20202× the bet
2109♥K♠ 19Q♥6♦ 16 surrendered50.5× the bet
1106♥2♥5♥10♦ 234♣J♦ 14202× 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
554a2fe0b5fa135ce6e128fa83db9e23d9184ab1302d574885f03b4d9f7238d3
Seed
099f0327ce339eebe726279ed6dd5a8d6b68cdbecf2375f55363aa3bd44bae31 SHA-256 of "degen.match.seed.v1", a zero byte and the 32 seed bytes is the seed hash.
Bettor's seed
149ca2fa1f8fade4221b63da9b7a82e5
Commitment
Batch 68,585, Merkle root 1ff9ecb4462cf637ff39b02790d8a51f23ef2f74d10017d4d4d59109aa5ef17d. Recorded by Degen Protocol; on-chain publication is not available yet. See this batch and its Merkle tree
Merkle path
  1. ad25da7b6b80734d7202a8200ece67a995cf64cab5fc862565a9b9e5d48d0ddc
  2. d2a8a1ff4a3cc38c9bd3ca4d70b8bf405bb40463502ab5789995b0094a2c4ff1
  3. c907d9f70ae9a88e9853a7be7147af681daa55b1701987968a006ae8c9b42ea3
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.