Degen Protocol
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Session against the house

Blackjack

ended Play money · 9a84c7a0c22c3a372cc1cc2a9ff93cb8

Watch the replayThe handsThe rulesCheck it is fair

gbbagainst the house
Hands played
200
Wagered
2,300 play
Returned
2,220 play
Bettor's net
-80 play
Return
96.52%

Results by hand

Final
Hands
200
played
Pace
19.9/min
overall 20.5/min
Biggest swing
-30
Seat 1 · hand 36

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

SeatNetRateStreak
gbb-80-40.0 play/100won 2

Last hands

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

The hands

Newest first
#BetDealerHandsPaidChecked
200107♦6♣10♣ 23J♣3♥8♦ 21202× the bet
19910Q♥9♠ 19K♠Q♠ 20202× the bet
198103♦K♣ 1310♠2♣J♠ 22 bust00× the bet
197103♣7♦2♥6♣ 183♠6♣7♣ 16 doubled00× the bet
19610A♥4♥ 158♦2♠4♦8♥ 22 bust00× the bet
195105♠3♠Q♦ 183♠A♠8♥ 12 doubled00× the bet
194108♥8♥5♣ 218♣A♦ 1900× the bet
193104♦K♣9♣ 236♦2♥6♠ 14202× the bet
192102♥2♠4♠9♦ 175♠8♠ 1300× the bet
191107♠9♠7♣ 233♣7♣2♣ 12 doubled404× the bet
19010K♠3♣2♠6♦ 218♦6♦7♥ 21101× the bet
189109♣5♥ 149♥7♣ 16 surrendered50.5× the bet
18810A♥K♣ 215♥K♥ 1500× the bet
18710Q♥Q♦ 20Q♠10♦ 20101× the bet
18610J♦J♥ 203♥Q♥7♠ 20101× the bet
18510J♠4♦ 144♥5♣4♠J♦ 23 bust00× the bet
184107♥K♦ 175♣4♣10♠ 19202× the bet
18310A♦9♦ 2010♦10♥ 20101× the bet
182102♠8♠J♠ 203♣7♠5♣ 15 doubled00× the bet
181105♥3♦3♦K♠ 212♣J♠ 1200× the bet
180106♥A♣ 172♠3♣8♠ 132♣K♥ 1200× the bet
179107♦10♠ 173♥Q♥3♥4♦ 20202× the bet
17810K♥2♠ 123♣Q♦K♠ 23 bust00× the bet
177108♦10♣ 18K♥5♠A♠8♠ 24 bust00× the bet
1761010♠Q♦ 20Q♣8♠ 1800× the bet
175104♣4♥7♦Q♦ 25K♠5♦ 15202× the bet
17410Q♠4♣3♥ 17A♥8♥ 19202× the bet
17310Q♣9♠ 192♦10♦Q♥ 22 bust00× the bet
172108♥6♣6♦ 203♦7♠A♠ 21 doubled404× the bet
17110Q♣6♦J♣ 267♥A♠2♣ 20202× the bet
170108♦10♠ 187♠3♦Q♠ 20 doubled404× the bet
16910K♥5♠5♠ 2010♣3♠8♠ 21202× the bet
168109♣8♣ 17J♣3♦5♦ 18202× the bet
167106♠Q♦3♣ 19K♦4♥ 1400× the bet
166103♦K♠K♣ 237♠A♥J♣ 18 doubled404× the bet
16510J♦K♠ 208♦9♦ 1700× the bet
16410A♠2♣4♣ 175♠A♦10♣A♠ 17101× the bet
163103♥A♠10♠10♥ 243♥2♣A♣J♥ 16202× the bet
16210J♣6♣7♠ 2310♣K♣ 20202× the bet
161102♥2♣A♥8♠Q♠ 239♣7♦ 16202× the bet
160104♠6♣ 10A♦J♥ 21 blackjack252.5945× the bet
159103♦5♣J♦ 187♣A♦A♣ 19 doubled404× the bet
158103♥10♥Q♣ 238♠Q♥ 18202× the bet
157109♠Q♦ 194♣8♠Q♦ 22 bust00× the bet
15610A♦8♦ 19J♥K♣ 20202× the bet
1551010♣4♣10♣ 243♥6♦5♠3♥ 17202× the bet
154106♦8♠9♣ 236♣2♥2♣9♣ 19202× the bet
153108♠2♠ 10Q♦3♦A♥J♦ 24 bust00× the bet
152105♦7♠J♣ 222♦J♠ 12202× the bet
151107♠6♦A♣10♠ 2410♣K♥ 20202× 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
85f27707f5b6275f98ccd7ac75d02cc7e45ee7b785db47f929e10eac9716b127
Seed
60cf20fccca043c05f6a3b40c19203c6615d529fc4a79f31b901d80e14c9f150 SHA-256 of "degen.match.seed.v1", a zero byte and the 32 seed bytes is the seed hash.
Bettor's seed
1caafd07a2962d557427c15fb6aca59b
Commitment
Batch 67,452, Merkle root ef9efcedc34d3e62e9fc690e593a9dc63086b8c12bc2a74768bda55f670e3a4a. Recorded by Degen Protocol; on-chain publication is not available yet. See this batch and its Merkle tree
Merkle path
  1. a2d212b7575cb8e5f584e21cc40dbbc99ffb5c4f81fdf9c2e19b0016b030c42a
  2. 570012e5f01c282e1535f29b6be44a25320f0580c30284f7bece81c2f5f7facd
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.