Degen Protocol
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Session against the house

Blackjack

ended Play money · 399f52b8d23ed886b957efff7c77b82e

Watch the replayThe handsThe rulesCheck it is fair

gbbagainst the house
Hands played
200
Wagered
2,280 play
Returned
2,215 play
Bettor's net
-65 play
Return
97.15%

Results by hand

Final
Hands
200
played
Pace
20.5/min
overall 21.0/min
Biggest swing
-40
Seat 1 · hand 25

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

SeatNetRateStreak
gbb-65-32.5 play/100lost 2

Last hands

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

The hands

Newest first
#BetDealerHandsPaidChecked
5010J♠A♥ 215♥Q♥ 1500× the bet
49105♦9♦2♠A♦ 179♣3♣ 1200× the bet
48108♦8♠8♥ 242♣6♣6♠7♠ 21202× the bet
47108♦3♣ 11A♠K♥ 21 blackjack252.5945× the bet
46108♥3♥8♠ 198♠A♦ 19101× the bet
4510J♦A♥ 212♠Q♠ 1200× the bet
44105♣2♠7♠8♣ 225♦A♠A♠ 17 doubled404× the bet
43107♥K♦ 17Q♣7♠ 17101× the bet
4210K♠A♥ 216♣9♥ 1500× the bet
41109♥J♥ 195♦7♥2♦8♦ 22 bust00× the bet
40104♥9♣5♣ 18A♠4♦Q♥ 1500× the bet
3910J♥A♥ 217♥7♠ 1400× the bet
38104♥8♣8♥ 20K♠Q♠ 20101× the bet
37105♥5♦6♣10♦ 26J♦Q♦ 20202× the bet
3610A♠J♦ 21K♣10♦ 2000× the bet
35103♣J♦7♥ 205♠J♠ 1500× the bet
34102♦Q♠ 124♦8♥K♠ 22 bust00× the bet
3310Q♥K♦ 20A♠5♣6♣4♥5♠ 21202× the bet
32109♠Q♦ 199♦J♥ 19101× the bet
31107♥J♦ 17K♦J♠ 20202× the bet
3010J♠9♦ 195♠9♥9♠ 23 bust00× the bet
29107♦6♥K♦ 239♠10♦ 19202× the bet
281010♥2♥7♣ 199♥2♠3♦ 14 doubled00× the bet
27102♠Q♥7♦ 194♦4♥J♦ 1800× the bet
26103♠5♦9♦ 17J♦J♣ 20202× the bet
25106♣7♠6♥ 197♣6♥ 137♣2♥5♣ 14 doubled7♣5♥ 1200× the bet
24106♦4♦2♥6♦ 187♣Q♦ 1700× the bet
23107♣4♦4♣3♠ 188♣9♦ 1700× the bet
2210K♦2♠ 12J♠A♦ 21 blackjack252.5945× the bet
21103♦2♠A♠10♥5♠ 21A♣9♦ 2000× the bet
20106♦9♥8♣ 233♣10♣ 13202× the bet
19103♠A♣3♦ 1710♠9♠ 19202× the bet
18102♠5♠7♣9♥ 236♥10♥ 16202× the bet
1710K♠10♦ 20Q♦4♠10♥ 24 bust00× the bet
161010♣3♣Q♠ 238♦9♦ 17202× the bet
1510J♦K♠ 209♠6♣ 15 surrendered50.5× the bet
14106♣8♠8♦ 229♥K♦ 19202× the bet
1310A♣2♠2♠8♥6♦ 19A♠3♠ 14A♣2♠ 1300× the bet
121010♠5♥ 15J♣4♠8♦ 22 bust00× the bet
1110K♣10♣ 206♥9♠ 15 surrendered50.5× the bet
1010A♣5♣6♠A♣9♥ 225♣Q♥A♥4♦ 20202× the bet
9103♦A♠6♦ 205♥4♥K♦ 19 doubled00× the bet
8103♥A♠9♣8♠ 218♣Q♣ 1800× the bet
7109♠4♦ 13K♦A♣ 21 blackjack252.5945× the bet
610J♥6♦J♣ 2610♣K♣ 20202× the bet
510Q♠5♠K♣ 253♥10♥6♥ 19202× the bet
410A♠5♥6♦A♥3♠4♦ 205♣7♥7♠ 1900× the bet
3103♦J♣K♠ 232♦9♥Q♦ 21 doubled404× the bet
210A♦J♣ 21J♠7♦ 1700× the bet
110J♠Q♦ 2010♠J♠ 20101× 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
b5c6cd929a0fd3e2fe004905c9d49bc118cd948caf0d7be54e5e0551a5e57f94
Seed
811d7514e4bcb89f66997e7fe332f2ec049686e7a4669469e0bf10c6da93aac2 SHA-256 of "degen.match.seed.v1", a zero byte and the 32 seed bytes is the seed hash.
Bettor's seed
d41b5f3322ec950c53ced74ca7052073
Commitment
Batch 66,442, Merkle root 89171bb53ef6d25b208ffe80af0e36c0b97981d2cb334a2273df7569fa72261e. Recorded by Degen Protocol; on-chain publication is not available yet. See this batch and its Merkle tree
Merkle path
  1. 085f9745a73875103cda578f1c3f4d5cb64e5d0f959f0adaea7a1162fdc6cf14
  2. 5ee396c9656605788ee69b0dcd61f98761ba030e9cf68d7aaa2b7e7f8b0aa237
  3. b1dd13f3b4434fdba7add121b80b820219e4a434da35f83f9c4ce78e48577275
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.