Degen Protocol
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Session against the house

Blackjack

ended Play money · 78f89283d7b5cfd8d0b1f728e9979fef

Watch the replayThe handsThe rulesCheck it is fair

gbbagainst the house
Hands played
200
Wagered
2,240 play
Returned
2,260 play
Bettor's net
+20 play
Return
100.89%

Results by hand

Final
Hands
200
played
Pace
23.6/min
overall 22.7/min
Biggest swing
+20
Seat 1 · hand 17

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

SeatNetRateStreak
gbb+20+10.0 play/100won 1

Last hands

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

The hands

Newest first
#BetDealerHandsPaidChecked
2001010♦2♦5♠ 179♠J♠ 19202× the bet
199103♦5♦K♠ 1810♥4♠ 1400× the bet
19810K♠7♦ 1710♥10♥ 20202× the bet
19710A♠J♥ 213♣Q♦ 1300× the bet
196103♠A♠2♦9♦8♥ 23J♦7♦ 17202× the bet
19510Q♥7♠ 17K♦A♦ 21 blackjack252.5945× the bet
19410Q♣8♦ 18K♠3♣10♥ 23 bust00× the bet
193102♥8♥5♥7♣ 222♦J♦5♣ 17202× the bet
192106♦8♦2♣A♦ 179♥8♣ 17101× the bet
191102♥9♣3♣3♠ 17J♦7♦ 17101× the bet
190109♠5♠J♦ 248♥A♥ 19202× the bet
1891010♥10♦ 202♠4♣6♠10♥ 22 bust00× the bet
18810K♦10♥ 20A♥5♣K♠3♣ 1900× the bet
187109♠6♠10♦ 254♥Q♥5♣ 19202× the bet
186106♦Q♠8♠ 24Q♣Q♠ 20202× the bet
185104♥5♦10♠ 194♠Q♥ 1400× the bet
18410A♠4♥ 157♥9♦ 16 surrendered50.5× the bet
18310K♥K♦ 205♦6♣Q♣ 21 doubled404× the bet
1821010♥A♣ 21Q♣2♣ 1200× the bet
18110A♣2♠ 137♠8♦K♠ 25 bust00× the bet
18010J♦J♠ 208♠10♣ 1800× the bet
179109♦K♠ 19J♠9♥ 19101× the bet
178106♦10♥K♣ 267♥A♠4♠ 12 doubled404× the bet
177106♣10♣6♥ 228♠K♠ 18202× the bet
176102♥3♦J♠8♠ 238♥5♣ 13202× the bet
17510A♥Q♣ 215♣Q♦ 1500× the bet
174106♦K♣ 16A♣K♦ 21 blackjack252.5945× the bet
1731010♦8♣ 183♣K♥9♠ 22 bust00× the bet
172102♦7♠A♣ 20Q♥10♥ 20101× the bet
171107♣8♣ 153♣4♣5♥J♦ 22 bust00× the bet
170105♥5♥K♣ 205♣Q♦ 1500× the bet
169109♣9♠ 18A♣9♥ 20202× the bet
168107♠10♦ 173♦4♥6♠A♠8♣ 22 bust00× the bet
167106♣8♣5♦ 199♣2♦5♦ 16 doubled00× the bet
166104♣A♦8♣A♦4♦ 189♥6♠ 1500× the bet
16510A♦2♦ 13J♣A♣ 21 blackjack252.5945× the bet
16410J♦Q♥ 20A♥10♦ 21 blackjack252.5945× the bet
163109♣7♦Q♠ 268♠9♥ 17202× the bet
162109♠8♣ 17A♥8♠ 19202× the bet
16110A♣K♣ 212♦Q♠ 1200× the bet
16010K♣J♦ 20J♦J♣ 20101× the bet
15910K♥9♣ 19Q♥6♣ 16 surrendered50.5× the bet
158103♣8♥10♦ 21J♥9♦ 1900× the bet
157109♠6♠3♠ 182♥3♥2♦K♥ 1700× the bet
15610J♣J♣ 203♥9♣J♣ 22 bust00× the bet
1551010♠K♠ 20Q♣4♥6♣ 20101× the bet
15410Q♦7♣ 17J♠6♦ 16 surrendered50.5× the bet
153103♦6♠9♣ 183♥6♦6♥ 15 doubled00× the bet
152105♠J♣K♣ 256♠Q♠ 16202× the bet
151104♦6♥6♠Q♥ 264♦6♣5♥ 15 doubled404× 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
07f89026bd839a49e6423643deea9938130898d316649e32de52320db3731793
Seed
d2035ef2741605d0b81e7f299b693b108f67f676e5be20db1553c48fad9d59d1 SHA-256 of "degen.match.seed.v1", a zero byte and the 32 seed bytes is the seed hash.
Bettor's seed
798d92b1a807fa0460d48b07ff6af674
Commitment
Batch 68,141, Merkle root 07ab067a4b2ae4daaff9b0a40c1fb236e1df29fc5058d308949dee833017b57a. Recorded by Degen Protocol; on-chain publication is not available yet. See this batch and its Merkle tree
Merkle path
  1. a7fd1dc42f0578323170f5f0eaaeb464766f36304cfc07fa84b9dbfd51066c7a
  2. 5e52306ced0374f5c37919be2af604f30006e8fe8bbb84bd617038130338c0b8
  3. b7e049e6486ffc2eafd10e0282f3398c0dc1a5e3a132ccb5b7b0dfe4ea281415
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.