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
50103♦3♠6♥Q♣ 22A♣4♣7♠A♠ 13202× the bet
49107♣8♦ 155♦Q♥A♣9♠ 25 bust00× the bet
4810Q♥9♠ 194♥K♠10♦ 24 bust00× the bet
47108♣9♥ 1710♣J♣ 20202× the bet
46103♣7♥5♦6♣ 21Q♠2♥3♠ 1500× the bet
45107♥8♦ 15K♠5♠10♠ 25 bust00× the bet
4410K♥9♦ 19Q♠4♦Q♠ 24 bust00× the bet
4310A♠K♣ 212♥7♣ 900× the bet
42108♥5♥Q♦ 235♥5♣8♠ 18 doubled404× the bet
4110J♠K♥ 204♠9♠6♠ 1900× the bet
4010J♥7♣ 177♠5♠J♠ 22 bust00× the bet
39103♣10♥2♠A♥J♣ 263♥A♥J♣ 14202× the bet
38106♥5♥7♠ 184♥8♠ 1200× the bet
37108♥8♥5♠ 215♦3♠7♠4♣ 1900× the bet
36102♥K♠K♦ 225♦J♣ 15202× the bet
35107♥4♦ 11A♠K♣ 21 blackjack252.5945× the bet
34102♥9♥A♦J♥ 226♦8♥ 14202× the bet
33106♦Q♦ 16A♠10♠ 21 blackjack252.5945× the bet
3210A♣4♠ 157♦8♦9♣ 24 bust00× the bet
311010♥7♣ 17K♠6♣ 16 surrendered50.5× the bet
3010A♣9♥ 204♦4♥10♣ 1800× the bet
2910Q♦10♣ 204♣9♣8♥ 21202× the bet
28102♦K♣5♣ 176♣3♦J♦ 19202× the bet
27109♥2♦J♥ 213♥8♠3♦ 14 doubled00× the bet
2610J♥J♣ 202♦K♦Q♣ 22 bust00× the bet
25102♣2♣10♣J♠ 2410♦4♠ 14202× the bet
241010♦8♦ 187♣3♥J♥ 20202× the bet
23109♠6♥9♣ 245♦6♥Q♠ 21 doubled404× the bet
22107♣5♦2♦9♣ 232♣3♣8♦A♦5♦ 19202× the bet
21105♠Q♦5♠ 202♦10♠ 1200× the bet
20103♠9♠J♠ 22A♦5♦ 16A♥10♦ 21404× the bet
19103♣10♣ 134♥3♥5♠K♥ 22 bust00× the bet
18108♣J♠ 184♦9♣A♠J♦ 24 bust00× the bet
17107♠K♠ 17Q♦J♣ 20202× the bet
16102♦4♦ 6A♠J♥ 21 blackjack252.5945× the bet
1510A♣5♠3♠ 193♠2♦K♣5♦ 20202× the bet
14106♥5♥8♣ 19Q♠Q♠ 20202× the bet
1310A♥9♠ 202♥10♠J♦ 22 bust00× the bet
1210J♠8♣ 182♦10♦9♠ 21202× the bet
1110J♥Q♦ 2010♠A♣ 21 blackjack252.5945× the bet
10107♣2♣7♥2♥ 185♦3♣6♥7♣ 21202× the bet
910Q♠6♠A♠ 173♦8♥2♣ 13 doubled00× the bet
810J♠A♣ 21K♠K♦ 2000× the bet
7106♦3♦6♦10♥ 25A♠7♦A♣ 19 doubled404× the bet
6108♣7♠7♠ 229♦8♣ 17202× the bet
510J♠J♦ 20K♣2♥10♥ 22 bust00× the bet
4106♠4♠A♠ 216♦A♠7♠ 14 doubled00× the bet
3102♠9♥5♦9♥ 252♥Q♥8♣ 20202× the bet
210J♥5♠ 158♦2♦3♦K♠ 23 bust00× the bet
110J♠7♣ 178♠4♦6♦ 18202× 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.