Degen Protocol
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Session against the house

Blackjack

ended Play money · 580c7ff058fda5d02a009819d8f358cf

Watch the replayThe handsThe rulesCheck it is fair

gbbagainst the house
Hands played
200
Wagered
2,370 play
Returned
2,245 play
Bettor's net
-125 play
Return
94.73%

Results by hand

Final
Hands
200
played
Pace
21.3/min
overall 21.7/min
Biggest swing
+60
Seat 1 · hand 143

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

SeatNetRateStreak
gbb-125-62.5 play/100lost 3

Last hands

  1. 200Even0
  2. 199Even0
  3. 198Even0
  4. 197Even0
  5. 196Even0
  6. 195Seat 1+15
  7. 194Seat 1+20
  8. 193Even0
  9. 192Seat 1+15
  10. 191Even0
  11. 190Seat 1+10
  12. 189Even0

The hands

Newest first
#BetDealerHandsPaidChecked
200103♥3♦9♠5♣ 203♠6♠3♦ 12 doubled00× the bet
199105♠6♦3♠5♣ 1910♦9♦ 19101× the bet
198108♣K♣ 188♣4♦5♦ 1700× the bet
197102♣5♥ 72♦Q♣J♣ 22 bust00× the bet
19610K♣7♣ 174♠10♦3♦ 17101× the bet
195105♦A♥ 16J♠A♦ 21 blackjack252.5945× the bet
194106♣6♠4♠6♥ 222♠8♣5♣ 15 doubled404× the bet
193106♥K♦2♠ 187♥3♠3♥ 13 doubled00× the bet
192104♦J♠ 14J♠A♣ 21 blackjack252.5945× the bet
19110K♣9♠ 1910♣2♥K♥ 22 bust00× the bet
190103♦2♥A♣Q♣10♥ 26A♥9♦ 20202× the bet
18910J♣K♦ 2010♦6♣ 16 surrendered50.5× the bet
188102♠5♥J♦ 174♠5♦3♥7♣ 19202× the bet
187107♦3♦7♣ 17K♥K♠ 20202× the bet
186109♠6♠5♥ 203♣8♣3♦ 14 doubled00× the bet
185102♠A♥7♦ 20J♦3♦ 1300× the bet
184105♠K♦A♦7♦ 239♥5♥ 14202× the bet
183104♣6♣J♣ 20K♠Q♥ 20101× the bet
18210K♠7♣ 172♣Q♥9♦ 21202× the bet
181104♣7♥2♣8♥ 216♠9♦ 1500× the bet
180104♥Q♠Q♥ 24K♥4♥ 14202× the bet
17910K♦K♦ 2010♠Q♠ 20101× the bet
178109♥7♦4♠ 209♥J♣ 1900× the bet
17710Q♠5♠ 15J♦6♣ 16 surrendered50.5× the bet
17610K♥K♥ 206♠3♠7♦10♦ 26 bust00× the bet
175104♦6♠3♣7♦ 20Q♣J♥ 20101× the bet
174107♠4♠6♥ 179♦K♠ 19202× the bet
173104♦4♥5♠10♠ 23J♥6♠ 16202× the bet
17210J♣5♠A♦5♥ 218♠5♦6♦ 1900× the bet
171102♦7♠7♦A♠ 175♦2♣3♥3♦ 1300× the bet
170103♣Q♣J♥ 233♠4♥5♦3♠ 15202× the bet
169108♠A♥ 196♦7♥3♣7♣ 23 bust00× the bet
168103♠Q♣3♣8♦ 248♦4♣5♦ 17202× the bet
167107♥J♠ 1710♦7♥ 17101× the bet
166104♠8♣10♠ 22A♣7♦ 18A♥K♦ 21404× the bet
16510J♠2♣ 12A♠K♥ 21 blackjack252.5945× the bet
1641010♣9♥ 199♦9♦ 1800× the bet
163108♦4♠9♦ 212♥3♥J♥2♣ 1700× the bet
162106♦10♥8♦ 24K♦3♣ 13202× the bet
16110A♣10♦ 21J♦3♥ 1300× the bet
16010Q♠2♥ 126♥9♠ 15 surrendered50.5× the bet
15910A♥A♦5♦ 17Q♦8♦ 18202× the bet
158105♥3♠9♦ 175♦A♦8♦ 14 doubled00× the bet
15710Q♠3♠5♣ 18A♦9♣ 20A♣3♣ 14202× the bet
15610Q♥5♦Q♠ 25A♦5♥ 16A♦A♠ 12404× the bet
155106♦A♠ 173♠Q♠ 1300× the bet
154107♠9♣ 166♥J♠10♣ 26 bust00× the bet
153102♠K♠K♥ 225♣7♥6♣ 18202× the bet
15210J♥J♥ 20J♥A♦ 21 blackjack252.5945× the bet
151103♣7♥8♠ 186♣3♦8♥ 17 doubled00× 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
3e9dc98a7277bd6e41e0dbe838d8c5bcb911d8108ef934cbfe5f5b35d16e0f08
Seed
3409a65c913c484ddf8b610029b0c13ed40d6928a3fabdcc9ce3674dc6cc6b25 SHA-256 of "degen.match.seed.v1", a zero byte and the 32 seed bytes is the seed hash.
Bettor's seed
1930c6da3d7ba244dbef0045f14f24ce
Commitment
Batch 70,955, Merkle root 8df7024d90c593cc7be3bbdff136f41be351aff838896f05d7a5e380426e8676. Recorded by Degen Protocol; on-chain publication is not available yet. See this batch and its Merkle tree
Merkle path
  1. 7da6a8ae1b3db6b9d0843c3c9b867416b2de7aceb51fe30c8a339a7ef8a4af8e
  2. 7a4eb48ddea991e174c1fbe0395a4b397eaf4e6ea58b09d73faeb6e6ed2d087f
  3. de4227e3972f764edb3a8683f2e34d8217b474dc81fd1f8b45cf52ebf611307a
  4. 8bf19ee7c1f323d20cdc0475e180e15720ab3c186423ad02ddd681210c68a26a
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.