Degen Protocol
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Session against the house

Blackjack

ended Play money · b8d8b7b8acda012ae3463cfb3b7192d3

Watch the replayThe handsThe rulesCheck it is fair

gbbagainst the house
Hands played
200
Wagered
2,280 play
Returned
2,505 play
Bettor's net
+225 play
Return
109.87%

Results by hand

Final
Hands
200
played
Pace
19.4/min
overall 21.0/min
Biggest swing
+30
Seat 1 · hand 170

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

SeatNetRateStreak
gbb+225+112.5 play/100lost 2

Last hands

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

The hands

Newest first
#BetDealerHandsPaidChecked
5010K♠10♣ 2010♣J♦ 20101× the bet
49104♦10♥Q♣ 242♠5♥A♣ 18202× the bet
48105♦9♠10♦ 24J♠10♥ 20202× the bet
47106♦5♥9♦ 20A♦2♥10♥ 13 doubled00× the bet
4610J♣8♠ 18K♦10♠ 20202× the bet
45108♠8♣10♠ 26A♥8♣ 19202× the bet
44108♠9♠ 1710♦K♥ 20202× the bet
4310A♦3♣5♣ 193♠5♣J♣ 1800× the bet
4210Q♥9♦ 199♠10♦ 19101× the bet
41108♠3♠9♣ 20Q♦J♣ 20101× the bet
4010A♦3♠ 144♠J♣A♠A♣8♣ 24 bust00× the bet
3910Q♣2♠3♦5♣ 20K♥J♣ 20101× the bet
381010♠8♦ 184♥A♠3♦8♠J♥ 26 bust00× the bet
37106♥2♦8♦7♣ 23Q♠3♥ 13202× the bet
36102♣5♠4♣K♠ 212♠4♠A♣Q♣ 1700× the bet
35104♦5♣8♠ 17J♦7♦ 17101× the bet
34107♦4♣7♠ 188♠K♣ 18101× the bet
33103♣K♣J♥ 234♠J♥ 14202× the bet
3210A♠3♥6♦ 204♣6♠K♥ 20101× the bet
31108♦10♠ 18J♥K♠ 20202× the bet
301010♠9♠ 196♦4♥J♣ 20202× the bet
29104♣3♣A♥ 18Q♦4♣ 1400× the bet
2810A♥9♠ 208♣A♦ 1900× the bet
27103♣6♠7♠J♥ 26K♥Q♥ 20202× the bet
26105♦6♠2♦K♦ 239♣10♦ 19202× the bet
2510J♣K♥ 203♣3♥4♠A♠ 21202× the bet
24106♣4♠2♣4♣Q♥ 26K♠2♥ 12202× the bet
23103♣5♥3♣3♦8♠ 222♣A♠2♣3♦ 18202× the bet
2210Q♠8♣ 189♣7♠ 16 surrendered50.5× the bet
21104♣8♥4♠J♣ 263♣J♥ 13202× the bet
20106♦Q♥2♥ 182♠3♣Q♦ 1500× the bet
19106♣K♠10♥ 2610♣7♣ 17202× the bet
1810J♣9♣ 195♦5♦10♠ 20202× the bet
17108♠K♠ 18Q♦2♦8♦ 20202× the bet
16108♥A♠ 19J♥10♣ 20202× the bet
15107♠J♠ 179♥7♦2♦ 18202× the bet
141010♣2♠3♦A♣9♠ 25Q♠10♣ 20202× the bet
13106♣5♦2♦6♦ 193♥6♣9♠ 18 doubled00× the bet
121010♣8♣ 186♣5♣Q♠ 21 doubled404× the bet
11102♥A♣9♦8♠ 202♠Q♠2♠ 1400× the bet
10104♦7♥10♠ 215♥4♠J♥ 19 doubled00× the bet
910J♥K♦ 2010♥4♥4♦ 1800× the bet
810K♣7♣ 173♦5♦Q♠ 18202× the bet
7108♠A♦ 192♠10♣A♠7♠ 20202× the bet
6109♦9♥ 1810♣9♥ 19202× the bet
5106♣Q♦5♠ 213♦5♥5♦ 1300× the bet
410J♦A♦ 214♠4♦ 800× the bet
3105♠4♥5♥5♥ 197♦Q♥ 1700× the bet
2104♠J♦10♦ 24Q♥Q♣ 20202× the bet
1106♠7♠8♠ 21A♣4♣4♠ 19 doubled00× 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
a79d1c39478a5807ea715593f4993a51b90b9425340a742695db7db1d630f0fa
Seed
822d01e33093708f5139f32bcaeb78cea380ed923f5b4c7a670cbacff0ec8fc1 SHA-256 of "degen.match.seed.v1", a zero byte and the 32 seed bytes is the seed hash.
Bettor's seed
b1d4dde04d7c73c6a8458ce2b5150105
Commitment
Batch 72,397, Merkle root 24ed075750166c99c184343122b41035ce01f68d2287e5c04140d17497da5edc. Recorded by Degen Protocol; on-chain publication is not available yet. See this batch and its Merkle tree
Merkle path
  1. e35ff9985c520ec621829c86a2278bf028753bd987c26ceff5fda4df707ccc50
  2. ada0a178e2de50a886d24f47d5c1b0eca18efe0b9c93e643fca4f09cc08c844b
  3. ba40d050e2174b05283a66ac2d232f64cd4f412805f734b901cf5a6452e0ea6b
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.