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
150108♠A♠ 1910♥6♠4♦ 20202× the bet
149104♣3♦5♥10♦ 223♦4♣J♣ 17202× the bet
14810J♣10♦ 20J♠6♦ 16 surrendered50.5× the bet
147108♦3♦ 11J♦2♣10♣ 22 bust00× the bet
146103♠3♠Q♦Q♥ 268♠3♥9♣ 20 doubled404× the bet
145109♣3♥9♣ 218♥2♣7♦ 17 doubled00× the bet
144102♥10♠8♣ 203♠8♦5♥ 16 doubled00× the bet
143104♦9♦10♣ 239♦2♦6♥ 17 doubled9♦2♥2♥ 13 doubled9♣2♣5♠ 16 doubled12012× the bet
14210A♥Q♠ 218♠9♠ 1700× the bet
141103♠3♠ 6J♥2♦Q♣ 22 bust00× the bet
140105♣4♥5♣10♣ 24K♦4♠ 14202× the bet
13910A♣3♣8♥2♣2♣8♠ 24J♥7♦ 17202× the bet
138109♣5♥10♠ 244♠7♦K♠ 21 doubled404× the bet
137109♠5♠7♥ 21A♣4♥K♦4♦ 1900× the bet
136106♥2♦9♠ 177♣10♦ 17101× the bet
135109♠Q♠ 19A♦10♣ 21 blackjack252.5945× the bet
13410A♦10♥ 21A♦5♥ 1600× the bet
13310J♠6♥8♣ 24K♣K♣ 20202× the bet
13210Q♦4♥ 144♠J♠2♣7♠ 23 bust00× the bet
131105♥4♣3♥10♠ 226♦4♠5♣ 15 doubled404× the bet
130105♣K♥8♥ 233♥A♠7♦ 21 doubled404× the bet
12910K♠10♠ 20A♣8♦ 1900× the bet
1281010♠3♣8♦ 212♣3♠4♦10♥ 1900× the bet
127102♦A♠4♠ 173♥10♥ 1300× the bet
126108♠5♠3♥3♦ 193♥A♣K♦A♠4♠ 19101× the bet
125108♥K♠ 187♣Q♣ 1700× the bet
124104♥8♣Q♠ 228♠5♦ 13202× the bet
123109♦9♠ 188♠Q♦ 18101× the bet
122108♠6♥7♦ 213♥7♥9♠ 19 doubled00× the bet
12110A♣A♦Q♠8♣ 209♣J♥ 1900× the bet
120103♦2♣5♣K♥ 205♥5♣8♦ 18 doubled00× the bet
119107♠7♦K♠ 247♥10♦ 17202× the bet
118102♣Q♥K♥ 229♦4♥ 13202× the bet
11710A♥K♣ 218♣6♦ 1400× the bet
11610A♥3♦8♥5♣ 17J♣9♣ 19202× the bet
115103♥9♥4♣A♣ 17K♥4♣ 1400× the bet
11410K♦J♣ 204♥5♦6♥2♣ 1700× the bet
113108♣10♣ 187♦4♥6♦ 17 doubled00× the bet
112104♥9♦6♣ 195♦Q♥ 1500× the bet
111102♣K♠6♦ 187♦5♥5♠ 1700× the bet
110108♦3♥9♦ 20J♣K♥ 20101× the bet
10910A♣7♠ 18J♣10♦ 20202× the bet
10810A♥8♠ 197♦3♣3♥8♣ 21202× the bet
10710A♠10♦ 219♠6♠ 1500× the bet
1061010♦8♠ 183♣K♠7♣ 20202× the bet
1051010♦8♦ 18J♥9♥ 19202× the bet
104102♥K♥4♦J♣ 267♣6♦ 13202× the bet
10310K♠2♠7♥ 19A♠8♦ 19101× the bet
1021010♣10♦ 207♦K♦ 1700× the bet
101105♦2♦6♠A♥8♠ 228♦7♥ 15202× 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.