Degen Protocol
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Session against the house

Blackjack

ended Play money · 517d27bc5359f1c626f5a483babc665c

Watch the replayThe handsThe rulesCheck it is fair

gbbagainst the house
Hands played
200
Wagered
2,280 play
Returned
2,260 play
Bettor's net
-20 play
Return
99.12%

Results by hand

Final
Hands
200
played
Pace
20.2/min
overall 20.8/min
Biggest swing
-30
Seat 1 · hand 109

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

SeatNetRateStreak
gbb-20-10.0 play/100lost 1

Last hands

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

The hands

Newest first
#BetDealerHandsPaidChecked
200108♥2♥9♠ 19K♣6♠3♣ 19101× the bet
19910J♦4♠7♣ 21K♠7♦ 1700× the bet
198109♦Q♥ 19A♥7♠2♥ 20202× the bet
197105♦7♥6♦ 183♠J♠ 1300× the bet
19610J♣4♠ 14A♥2♥10♦3♣6♣ 22 bust00× the bet
195105♣8♥6♠ 1910♥7♣ 1700× the bet
194107♦K♠ 1710♠Q♣ 20202× the bet
193105♣7♠3♦5♦ 209♦4♥ 1300× the bet
192106♣9♣5♣ 2010♠9♥ 1900× the bet
191108♦J♠ 182♣10♣A♣6♦ 19202× the bet
1901010♠J♥ 209♣4♥A♠7♣ 21202× the bet
189104♥2♥J♠3♣ 199♠3♦ 1200× the bet
188103♠4♠6♠10♣ 235♦4♥K♣ 19 doubled404× the bet
1871010♠K♠ 204♦6♦8♦ 1800× the bet
186107♣K♦ 1710♣Q♦ 20202× the bet
185106♠6♣A♠10♥ 233♥A♣6♥ 20 doubled404× the bet
18410Q♣4♥ 14K♠5♠ 15 surrendered50.5× the bet
183107♥K♣ 17J♣Q♣ 20202× the bet
182105♦A♥5♣ 21A♦9♦ 2000× the bet
181108♠7♣ 15K♣A♦ 21 blackjack252.5945× the bet
180108♦Q♦ 182♠2♦K♠10♣ 24 bust00× the bet
179108♦5♥ 134♥9♦A♠K♦ 24 bust00× the bet
178102♥Q♦5♠ 174♥K♥ 1400× the bet
177103♦K♣ 13A♣10♣ 21 blackjack252.5945× the bet
176108♠K♥ 188♠7♣A♦5♠ 21202× the bet
17510A♥6♣ 17A♥2♠K♠J♦ 23 bust00× the bet
174105♣10♠7♥ 224♦8♣ 12202× the bet
173103♦Q♣J♦ 239♦4♦ 13202× the bet
172102♣3♠2♣9♣7♦ 235♥3♦3♦6♣ 17202× the bet
171104♠5♠7♠9♠ 25J♣K♥ 20202× the bet
170104♥5♣K♠ 196♥J♥ 1600× the bet
169105♠Q♥7♦ 226♣Q♦ 16202× the bet
168104♣A♠ 15A♠Q♥ 21 blackjack252.5945× the bet
16710Q♠8♦ 18Q♣4♥2♥2♥ 18101× the bet
166102♦K♦8♦ 208♠J♦ 1800× the bet
165108♣J♣ 189♣10♠ 19202× the bet
164108♣5♠A♠4♠ 18K♥K♦ 20202× the bet
163102♣6♦3♦3♥A♥10♣ 25Q♥6♣ 16202× the bet
16210K♦3♣ 135♠A♣Q♣10♣ 26 bust00× the bet
161105♥3♣ 8Q♠A♠ 21 blackjack252.5945× the bet
160106♦K♥10♥ 264♦3♥A♥ 184♦6♦3♥ 13 doubled606× the bet
159106♣K♣Q♠ 263♣6♥K♠ 19 doubled404× the bet
15810Q♠3♠9♥ 222♥Q♥9♣ 21202× the bet
157103♦J♥K♥ 23K♥2♦9♣ 21202× the bet
15610J♥2♣ 127♦5♥A♦Q♥ 23 bust00× the bet
15510A♣Q♣ 212♥8♣ 1000× the bet
154102♦2♦6♥2♠J♦ 22Q♥7♥ 17202× the bet
153103♦5♣Q♠ 186♣4♣J♠ 20 doubled404× the bet
152106♠5♦3♣A♥10♣ 25K♣5♥ 15202× the bet
151106♣K♦J♠ 268♠9♥ 17202× 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
dc4a4eeebefdc34e94159a56e9d506c66f4b5a1018dbcc442a98e7933b6a1cf5
Seed
88734daeda018e2f0482e2f91401f84bf8d178ed6c4ad21ee04e634ce58decd3 SHA-256 of "degen.match.seed.v1", a zero byte and the 32 seed bytes is the seed hash.
Bettor's seed
33de6f5ee09030dc38a97106b4c74805
Commitment
Batch 72,555, Merkle root 4892fa902dbcc450ae80c2a298b86cb6f05363d3cd81d585397e905c32f0da11. Recorded by Degen Protocol; on-chain publication is not available yet. See this batch and its Merkle tree
Merkle path
  1. aa60a12e002fe2103d4cf2dd80ede9d7fd86020482e71faf10cc62fd0519f361
  2. 2d46829b0b173adaa72220dcf27bbd88377e60a57d9f9275f0c8e67d86fdacca
  3. 43c72a65ab0aa936a9af37084d189eb26d3ce79e6f8e6e3a37c9b20cfdaf0d9c
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.