Degen Protocol
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Session against the house

Blackjack

ended Play money · 07add59eb779c96a219db5bb927f5b1d

Watch the replayThe handsThe rulesCheck it is fair

gbbagainst the house
Hands played
200
Wagered
2,310 play
Returned
2,215 play
Bettor's net
-95 play
Return
95.89%

Results by hand

Final
Hands
200
played
Pace
21.4/min
overall 20.8/min
Biggest swing
-20
Seat 1 · hand 13

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

SeatNetRateStreak
gbb-95-47.5 play/100lost 1

Last hands

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

The hands

Newest first
#BetDealerHandsPaidChecked
50105♣7♦7♦ 19J♦K♥ 20202× the bet
491010♥10♣ 20J♣J♠ 20101× the bet
481010♥10♦ 207♥K♠ 1700× the bet
47107♦3♣ 109♣3♦Q♦ 22 bust00× the bet
46106♦K♣K♣ 263♦8♥9♠ 20 doubled404× the bet
4510A♠J♣ 215♥J♠ 1500× the bet
44106♣J♣9♣ 259♥3♣ 12202× the bet
431010♠Q♦ 209♦10♥ 1900× the bet
4210A♠4♠ 154♣J♦8♠ 22 bust00× the bet
4110J♦A♦ 213♦6♠ 900× the bet
4010Q♥9♦ 199♦K♦ 19101× the bet
391010♥10♣ 209♠10♣ 1900× the bet
38104♦6♦J♦ 209♥5♦ 1400× the bet
3710J♠7♣ 173♥8♥6♥ 17 doubled202× the bet
36107♦2♣2♠3♣10♥ 24Q♥Q♦ 20202× the bet
3510Q♦3♥8♠ 216♣8♥4♥ 1800× the bet
3410K♥Q♥ 209♠6♠ 15 surrendered50.5× the bet
33102♣J♥7♣ 19Q♠2♠8♥ 20202× the bet
32108♥4♦A♣8♠ 218♣3♠2♥ 13 doubled00× the bet
3110J♠A♣ 215♥9♥ 1400× the bet
30108♥10♣ 184♥J♥7♣ 21202× the bet
2910Q♦8♥ 187♦6♣8♥ 21202× the bet
2810K♠Q♥ 208♥4♣6♠ 1800× the bet
2710A♣J♥ 2110♦5♦ 1500× the bet
2610A♠A♣ 12A♠10♣ 21 blackjack252.5945× the bet
251010♣5♦ 154♣5♣5♦A♠7♠ 22 bust00× the bet
24109♣10♣ 195♠6♠2♥ 13 doubled00× the bet
231010♥9♥ 199♦4♣7♠ 20202× the bet
22107♠Q♦ 1710♥7♠ 17101× the bet
21103♥A♠4♦ 185♥A♠5♠ 21202× the bet
2010A♥9♦ 20J♦6♦ 16 surrendered50.5× the bet
1910A♣Q♦ 218♠3♥ 1100× the bet
1810K♣4♣Q♥ 24J♥9♠ 19202× the bet
17104♣A♠6♥ 216♦7♥ 1300× the bet
1610Q♦10♦ 20J♦4♥A♦J♦ 25 bust00× the bet
15106♥7♠3♥4♦ 206♣3♥6♦ 15 doubled00× the bet
1410K♦8♦ 187♦J♣ 1700× the bet
13104♠2♠6♥8♦ 209♥8♦ 179♦5♦ 1400× the bet
12107♣3♣ 106♠K♠J♣ 26 bust00× the bet
1110J♦4♠ 145♥7♣4♣J♦ 26 bust00× the bet
10104♣6♠8♠ 18K♥K♥ 20202× the bet
9104♠A♦3♦ 1810♠2♣ 1200× the bet
8105♠Q♣8♥ 2310♥2♦ 12202× the bet
7103♥A♣5♦ 197♠10♠ 1700× the bet
610K♦6♣J♦ 265♣7♠3♥5♠ 20202× the bet
510Q♠K♥ 202♦5♣9♣8♥ 24 bust00× the bet
4105♣9♣4♣ 1810♥5♣ 1500× the bet
3102♥Q♠4♥5♣ 2110♥7♠ 1700× the bet
2102♦Q♣8♠ 20Q♠8♦ 1800× the bet
11010♥7♥ 17J♠A♦ 21 blackjack252.5945× 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
74219d6cfa6271d453c45eaca005f38c80521918452a1fa4385412435f930a91
Seed
889ff153fbff6118c4d2042100b6bdc6095d5befc74b6a4eea1222d37927e31d SHA-256 of "degen.match.seed.v1", a zero byte and the 32 seed bytes is the seed hash.
Bettor's seed
a1ec1d3b212c4e8eab3241bee79a585d
Commitment
Batch 67,814, Merkle root d2572db41a653392a81399ad102f47b7540a065c75302fa559077c29cebc70f8. Recorded by Degen Protocol; on-chain publication is not available yet. See this batch and its Merkle tree
Merkle path
  1. 0cfce7061949dab073d9782383a170f5b0ef00c250b88d68485390234e6c89e9
  2. 68f8f014ada39343b65ed4dd5ea4d4ddfe5aa55199fa4a538e0a847c0f0b191c
  3. 0a018ddf4fd32ee96a046133c6dbbae837b93c911c2d5404215bec184638dce1
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.