Degen Protocol
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Session against the house

Blackjack

ended Play money · 826066cd43c9df42cfc9b751453390ed

Watch the replayThe handsThe rulesCheck it is fair

gbbagainst the house
Hands played
200
Wagered
2,320 play
Returned
2,095 play
Bettor's net
-225 play
Return
90.30%

Results by hand

Final
Hands
200
played
Pace
21.9/min
overall 20.7/min
Biggest swing
-40
Seat 1 · hand 51

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

SeatNetRateStreak
gbb-225-112.5 play/100won 2

Last hands

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

The hands

Newest first
#BetDealerHandsPaidChecked
5010J♦Q♥ 204♠9♦J♦ 23 bust00× the bet
491010♠A♥ 213♣10♣ 1300× the bet
4810A♥A♦ 127♦2♥5♥Q♣ 24 bust00× the bet
47103♠2♣5♦9♦ 199♠8♦ 1700× the bet
461010♥8♣ 189♠2♣5♥ 16 doubled00× the bet
45106♠8♣A♦10♦ 257♥4♠8♦ 19 doubled404× the bet
4410Q♥6♦ 166♠10♥ 16 surrendered50.5× the bet
4310J♥4♦10♣ 245♥6♣4♦ 15 doubled404× the bet
42106♠10♠ 16K♣A♦ 21 blackjack252.5945× the bet
4110A♥7♠ 186♣6♣10♣ 22 bust00× the bet
40102♠Q♥J♠ 2210♣9♥ 19202× the bet
39109♦5♦ 142♠10♦2♠Q♥ 24 bust00× the bet
3810A♦Q♦ 21A♣8♥ 1900× the bet
37105♥7♥9♣ 21J♥9♦ 1900× the bet
3610Q♦Q♥ 20K♦7♦ 1700× the bet
35105♠9♦A♦K♣ 252♥Q♣ 12202× the bet
34107♥4♣ 11J♦3♣10♠ 23 bust00× the bet
3310J♣J♣ 208♣Q♥ 1800× the bet
32109♠8♣ 177♣8♥10♦ 25 bust00× the bet
31102♣K♣A♥2♦Q♣ 253♠2♥2♠6♣ 133♦6♥A♠ 20404× the bet
3010K♥Q♥ 205♠4♥7♣6♣ 22 bust00× the bet
291010♥10♦ 204♠4♥6♦6♣ 20101× the bet
28106♠3♠7♣7♥ 23A♦10♦ 21A♦A♣ 12404× the bet
27105♦Q♦J♠ 253♥7♠2♦ 12 doubled3♦5♦2♥5♦ 15606× the bet
2610J♣8♥ 18K♠A♣ 21 blackjack252.5945× the bet
25109♠9♣ 184♣9♦2♠8♦ 23 bust00× the bet
241010♥J♣ 203♠8♣7♣ 18 doubled00× the bet
23103♠A♣7♣ 217♦A♥8♣ 16 doubled00× the bet
22107♦2♠10♥ 193♦4♣3♥A♣ 21202× the bet
2110K♦7♠ 17J♦K♣ 20202× the bet
20105♣5♦10♣ 20K♣9♥ 1900× the bet
191010♣Q♦ 204♠6♥3♥7♠ 20101× the bet
18109♥K♣ 1910♠7♠ 1700× the bet
17107♥9♦2♦ 183♦9♠3♣3♠ 18101× the bet
16105♦9♣10♦ 24J♠6♦ 16202× the bet
15103♣Q♥5♣ 186♥K♦ 1600× the bet
14102♥9♦2♣6♦ 193♣4♦2♦10♠ 19101× the bet
1310K♣5♥ 158♥6♥Q♣ 24 bust00× the bet
12104♣5♥6♥Q♣ 25Q♠10♠ 20202× the bet
11102♣Q♥10♠ 223♠2♦K♠ 15202× the bet
10108♦2♣ 10J♠A♦ 21 blackjack252.5945× the bet
9107♥10♣ 1710♦9♦ 19202× the bet
8102♦2♠J♣8♣ 225♦A♣9♣ 15202× the bet
7102♦9♦J♠ 21J♣10♠ 2000× the bet
610J♥10♦ 203♥K♦Q♣ 23 bust00× the bet
5104♣7♣2♥6♠ 19A♥7♠K♦ 18 doubled00× the bet
410Q♣Q♥ 20J♣Q♠ 20101× the bet
3109♣A♠ 205♦9♠9♥ 23 bust00× the bet
2108♦6♥9♠ 236♠3♣10♣ 19202× the bet
1106♠K♣J♣ 263♥A♦9♥ 13 doubled404× 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
1e1530c03e9d94157c8ebdf3c15a369e0410e0fa0764cd4c8f52f6e6495c4823
Seed
ea0e58386a5789570076687c00f7a296e2361c74d91794244721bf253d0e9f64 SHA-256 of "degen.match.seed.v1", a zero byte and the 32 seed bytes is the seed hash.
Bettor's seed
2e7b8854f7329c402c8f2828951d8f91
Commitment
Batch 67,216, Merkle root ea95bc6521873fc2eda6bf6d6d898bbd0e754d1b082706b0c2184184334a828a. Recorded by Degen Protocol; on-chain publication is not available yet. See this batch and its Merkle tree
Merkle path
  1. db7e1594185a581f6349bedb8adad0c764e52326a1fef267a6c60ea6cfe18154
  2. a17ae0e137083a21fa2cc383f085ad81a1704665f7b1870919f46aef86567b65
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.