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
20010J♦A♦ 213♠J♣ 1300× the bet
199106♠6♦5♦ 17Q♣4♠ 1400× the bet
19810A♣9♠ 20K♦5♠A♦5♥ 21202× the bet
1971010♠K♣ 202♥4♥10♦2♠ 1800× the bet
196102♣9♦Q♠ 21A♦6♥7♣ 1400× the bet
195104♣J♣J♠ 248♠9♥ 17202× the bet
194103♥10♦9♦ 22Q♥J♠ 20202× the bet
193107♦5♣7♦ 19K♠8♦ 1800× the bet
192107♠A♠ 185♥K♣K♥ 25 bust00× the bet
19110J♣10♣ 20J♣Q♣ 20101× the bet
190109♥10♦ 19A♠3♦8♦A♣10♠ 23 bust00× the bet
18910Q♦2♥ 128♣5♥K♣ 23 bust00× the bet
188109♠8♥ 17J♦6♥ 16 surrendered50.5× the bet
18710Q♣4♥8♠ 224♣K♦7♥ 21202× the bet
186104♥10♣5♦ 19A♦8♣ 19101× the bet
18510J♣8♠ 189♥K♥ 19202× the bet
184102♣10♥7♦ 193♣4♦3♣Q♦ 20202× the bet
183109♦K♦ 198♦2♥Q♥ 20 doubled404× the bet
182105♦7♠Q♣ 2210♦7♣ 17202× the bet
181103♣A♠9♥8♦ 219♥8♣ 1700× the bet
180108♣5♦5♦ 187♠6♠5♥ 18101× the bet
179105♥2♥6♦3♠J♦ 2610♥J♥ 20202× the bet
178106♣5♣2♠2♦7♣ 229♦3♣ 12202× the bet
177108♥4♠ 124♠8♠J♠ 22 bust00× the bet
176109♠J♠ 197♦8♥10♠ 25 bust00× the bet
175105♥J♣5♦ 20Q♣8♥ 1800× the bet
1741010♥J♥ 20Q♠2♥6♠ 1800× the bet
17310A♠J♣ 21K♠K♠ 2000× the bet
17210Q♣K♥ 207♠6♦6♥ 1900× the bet
171103♥2♥ 5A♦10♠ 21 blackjack252.5945× the bet
170104♣5♠8♦ 173♦9♠ 1200× the bet
169109♠6♦Q♦ 252♦5♠A♠9♣ 17202× the bet
168103♦8♣5♣7♥ 23Q♠8♣ 18202× the bet
1671010♥A♦ 21A♦3♠ 1400× the bet
166105♦A♣5♥ 215♦7♠ 1200× the bet
165106♥2♠K♠ 18A♥5♠Q♣ 16 doubled00× the bet
164105♣8♦J♦ 23J♠6♠ 16202× the bet
163104♥5♣9♦ 187♦J♣ 1700× the bet
162105♦5♥3♣5♠ 18J♥7♣ 1700× the bet
161105♥9♥7♥ 214♦6♠9♣ 19 doubled00× the bet
160107♥2♣7♦4♣ 208♦5♠2♦6♦ 21202× the bet
159109♥3♠ 128♠6♠K♥ 24 bust00× the bet
158106♥2♥2♦Q♦ 203♥6♠8♥ 17 doubled00× the bet
157102♠J♠4♥J♣ 264♦9♠ 13202× the bet
15610K♥6♥9♦ 25A♥6♠6♦A♦4♦ 18202× the bet
15510J♠6♣A♥ 173♠8♠A♣ 12 doubled00× the bet
154106♦8♣4♦ 185♣5♥Q♦ 20 doubled404× the bet
15310Q♣8♣ 189♦6♣ 15 surrendered50.5× the bet
152103♦6♣5♠4♥ 186♣4♣5♦ 15 doubled00× the bet
151103♠J♣K♠ 234♥Q♦ 14202× 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.