Degen Protocol
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Session against the house

Blackjack

ended Play money · 79741aa2487dc43755dff830e9928f8c

Watch the replayThe handsThe rulesCheck it is fair

gbbagainst the house
Hands played
200
Wagered
2,230 play
Returned
2,015 play
Bettor's net
-215 play
Return
90.36%

Results by hand

Final
Hands
200
played
Pace
20.2/min
overall 21.2/min
Biggest swing
-30
Seat 1 · hand 28

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

SeatNetRateStreak
gbb-215-107.5 play/100lost 4

Last hands

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

The hands

Newest first
#BetDealerHandsPaidChecked
200102♣Q♥5♦ 173♣J♠ 1300× the bet
199104♦Q♥5♠ 1910♦8♥ 1800× the bet
198103♦8♦9♠ 20Q♦6♦ 1600× the bet
197106♥A♥ 174♠2♥Q♥ 1600× the bet
196103♦4♣3♣8♥ 184♣6♥Q♣ 20 doubled404× the bet
195109♥6♦ 156♣A♣7♦10♠ 24 bust00× the bet
19410K♦4♥9♦ 236♥6♦2♦5♣ 19202× the bet
19310K♦2♣2♦6♠ 208♦K♦ 1800× the bet
19210K♥Q♥ 2010♣6♥ 16 surrendered50.5× the bet
191107♣3♠J♠ 20K♠10♥ 20101× the bet
190109♣K♦ 19K♥8♣ 1800× the bet
18910J♠6♠3♠ 19K♥8♠ 1800× the bet
188105♦A♠6♣9♠ 21Q♥9♠ 1900× the bet
18710K♥J♥ 20Q♦6♥ 16 surrendered50.5× the bet
186109♥K♣ 198♦3♠2♠ 13 doubled8♠10♠ 1800× the bet
1851010♠8♣ 188♦10♦ 18101× the bet
184108♠9♣ 173♣9♣7♦ 19202× the bet
18310A♠2♣5♣ 1810♦9♦ 19202× the bet
182107♣7♠ 144♦Q♣8♠ 22 bust00× the bet
181104♥J♣5♦ 193♣6♠3♥ 12 doubled00× the bet
180104♥10♦9♣ 23A♣7♠2♣ 20 doubled404× the bet
179108♦6♠3♣ 174♠2♦5♥6♣ 17101× the bet
17810A♦Q♦ 2110♦5♣ 1500× the bet
1771010♣K♣ 203♥2♦9♥8♠ 22 bust00× the bet
17610Q♦K♦ 20Q♥Q♠ 20101× the bet
175107♠3♦8♥ 1810♠7♦ 1700× the bet
174103♦2♥2♥2♠6♣9♣ 246♣A♣K♠ 17 doubled404× the bet
17310Q♦Q♥ 202♣4♣J♠A♣ 1700× the bet
17210Q♠2♣4♠6♥ 223♥8♥8♠ 19 doubled404× the bet
171106♥J♠8♣ 244♠2♠4♥A♣ 21202× the bet
17010Q♣10♠ 20K♥Q♠ 20101× the bet
169108♦4♠ 12K♣6♣6♥ 22 bust00× the bet
168102♦9♦8♦ 199♣5♣ 149♠Q♥ 19101× the bet
16710K♥A♣ 21A♠J♦ 21 blackjack101× the bet
166102♥K♦Q♣ 226♣A♦Q♠ 17202× the bet
16510K♥K♦ 207♦K♠ 1700× the bet
164106♠3♦8♣ 173♠7♦Q♠ 20 doubled404× the bet
163109♣J♠ 196♠7♥10♠ 23 bust00× the bet
162103♣A♣K♣8♠ 227♠10♠ 17202× the bet
161109♣9♠ 18J♥6♣ 16 surrendered50.5× the bet
16010K♥4♦ 1410♣6♠ 16 surrendered50.5× the bet
159108♦8♥ 16Q♦6♥7♦ 23 bust00× the bet
158102♥5♣5♠8♠ 204♦2♥J♦ 1600× the bet
157106♣2♦Q♦ 184♠3♦7♥ 1400× the bet
156107♣6♥2♦6♥ 213♣4♣10♥ 1700× the bet
155103♣4♥4♦3♦3♠ 178♥J♦ 18202× the bet
154104♠J♦3♣ 174♠6♣A♣ 21 doubled404× the bet
153105♠A♣9♥7♥ 22J♠4♣ 14202× the bet
152109♥3♥ 12J♦2♥Q♣ 22 bust00× the bet
151103♠3♣2♥7♦3♠ 183♥2♦3♣10♣ 18101× 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
22a073ddc717c9b2571d1c6bb9c21dc05bf2409cfdc201a469905a526a19896a
Seed
633f8f428e639f37b8f5f8f6047b592d45eed983498bd9840b78a21496f1f6ce SHA-256 of "degen.match.seed.v1", a zero byte and the 32 seed bytes is the seed hash.
Bettor's seed
8157d5a1e2646110138dcd7a89732750
Commitment
Batch 69,143, Merkle root 921b6b0e7d6625fe51bf3a733a81bc0a84b7826d7b92878e22dfef119e4b92c9. Recorded by Degen Protocol; on-chain publication is not available yet. See this batch and its Merkle tree
Merkle path
  1. 223f5400cb28be3672fb40c65028e024f990ee97a549efc604cad6cc748f212f
  2. ea55fa71a34c491eef1ccb1440fec842f8738842dec0ace2370cb00e0356aa0e
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.