Degen Protocol
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Session against the house

Blackjack

ended Play money · 0e814ebab064537e31c7cc489990b237

Watch the replayThe handsThe rulesCheck it is fair

gbbagainst the house
Hands played
200
Wagered
2,300 play
Returned
2,230 play
Bettor's net
-70 play
Return
96.96%

Results by hand

Final
Hands
200
played
Pace
23.2/min
overall 19.9/min
Biggest swing
-30
Seat 1 · hand 90

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

SeatNetRateStreak
gbb-70-35.0 play/100won 1

Last hands

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

The hands

Newest first
#BetDealerHandsPaidChecked
200105♣K♦8♦ 23J♠J♣ 20202× the bet
19910J♠Q♦ 2010♠3♣6♣ 1900× the bet
198104♣10♣4♥ 187♠9♥ 1600× the bet
197102♣9♠J♣ 218♠7♦ 1500× the bet
19610J♣2♣K♠ 22K♣9♦ 19202× the bet
195104♠J♦ 14A♦K♦ 21 blackjack252.5945× the bet
194106♦J♦A♥ 17K♥6♦ 1600× the bet
19310A♠J♣ 218♥9♣ 1700× the bet
192107♠10♦ 175♠5♦6♠ 16 doubled00× the bet
19110K♣Q♥ 206♥Q♥ 16 surrendered50.5× the bet
1901010♥A♠ 2110♠8♣ 1800× the bet
18910Q♠9♣ 19J♣8♦ 1800× the bet
18810Q♠Q♥ 20K♠4♠4♦ 1800× the bet
18710K♠5♦4♠ 19A♥4♣5♠ 20202× the bet
186103♥3♥4♥10♣ 20A♣6♦J♠ 17 doubled00× the bet
185105♥Q♦3♦ 189♦8♣ 1700× the bet
184104♥2♦K♦A♣ 177♦4♠A♥ 12 doubled00× the bet
18310Q♣A♥ 217♦3♠ 1000× the bet
182107♣A♣ 184♦A♣9♣K♠ 24 bust00× the bet
181106♣4♦10♦ 202♥4♣J♠ 1600× the bet
1801010♦4♥10♠ 24A♦4♥ 15A♦3♣ 14404× the bet
179102♥10♦ 12Q♦A♠ 21 blackjack252.5945× the bet
1781010♥6♣ 166♣K♠ 16 surrendered50.5× the bet
177105♣5♣Q♣ 203♦5♠7♠ 1500× the bet
176107♦5♦ 127♥5♦A♥10♥ 23 bust00× the bet
175104♠K♣Q♣ 247♦4♣A♣ 12 doubled404× the bet
17410Q♦3♣ 135♦7♣J♠ 22 bust00× the bet
17310Q♣Q♦ 20A♠5♦5♦ 21202× the bet
172107♥3♦5♣4♣ 197♥10♦ 1700× the bet
1711010♠6♣ 1610♥5♦ 15 surrendered50.5× the bet
170104♦3♣J♥ 172♦Q♥ 1200× the bet
16910A♠A♣3♠2♦ 1710♣10♦ 20202× the bet
1681010♠K♦ 20K♦4♦10♥ 24 bust00× the bet
16710Q♦9♠ 19J♥8♥ 1800× the bet
166103♦Q♥10♦ 234♣2♥5♥10♦ 21202× the bet
165102♦Q♥A♣4♥ 17J♦8♣ 18202× the bet
164105♥J♥K♥ 252♦3♣Q♥ 15202× the bet
163107♦6♣6♦ 195♠J♦4♥ 19101× the bet
162104♣9♣ 13K♥A♣ 21 blackjack252.5945× the bet
16110K♣3♠10♣ 235♦2♠A♣7♦4♣ 19202× the bet
16010Q♠10♦ 205♥8♠J♦ 23 bust00× the bet
15910Q♥9♣ 195♣K♥ 15 surrendered50.5× the bet
158106♥9♦7♥ 229♥6♣ 15202× the bet
157109♠K♣ 192♣Q♦Q♦ 22 bust00× the bet
156103♦6♦10♦ 19A♥5♠10♣ 1600× the bet
155107♠2♦Q♠ 19K♣3♣A♦7♠ 21202× the bet
154103♣3♣6♠10♠ 222♠10♠5♠ 17202× the bet
15310A♦4♠ 15A♠10♦ 21 blackjack252.5945× the bet
152107♠4♠5♦3♠ 197♥8♠9♠ 24 bust7♠Q♥ 177♣4♥Q♦ 21 doubled404× the bet
15110K♥9♠ 195♠5♣2♦3♥10♠ 25 bust00× 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
2bdd19f416df2989f4605f810dba6845d8b1de3753f498a388f12133ea3379cd
Seed
8e0873415992a83d982ee8daa069570a3f599e32bb718a6cdad1811401d956e0 SHA-256 of "degen.match.seed.v1", a zero byte and the 32 seed bytes is the seed hash.
Bettor's seed
16e8f295fb6b709feabdc9b6448a130b
Commitment
Batch 71,533, Merkle root df572b0cb5fd50a296e705cb76c5122f1dd7d7426e5b30d04b31e723545ad810. Recorded by Degen Protocol; on-chain publication is not available yet. See this batch and its Merkle tree
Merkle path
  1. 46d52534548f39f20b16167a69db3f0c9493b1bd7e9ceb526cf6436948e67d9a
  2. ff9bbb2223675a2b922e3aca1486ad513b55dfe506e4224ba19cfd6f8c47defb
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.