Degen Protocol
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Session against the house

Blackjack

ended Play money · 072e721ca2fb80ba9a990da72ab78e9a

Watch the replayThe handsThe rulesCheck it is fair

gbbagainst the house
Hands played
200
Wagered
2,220 play
Returned
2,245 play
Bettor's net
+25 play
Return
101.13%

Results by hand

Final
Hands
200
played
Pace
20.8/min
overall 19.1/min
Biggest swing
+40
Seat 1 · hand 82

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

SeatNetRateStreak
gbb+25+12.5 play/100won 3

Last hands

  1. 200Seat 1+10
  2. 199Seat 1+20
  3. 198Seat 1+10
  4. 197Even0
  5. 196Seat 1+10
  6. 195Seat 1+20
  7. 194Even0
  8. 193Even0
  9. 192Seat 1+10
  10. 191Even0
  11. 190Seat 1+10
  12. 189Seat 1+10

The hands

Newest first
#BetDealerHandsPaidChecked
5010A♠Q♥ 212♦8♠ 1000× the bet
49102♥9♣5♠10♠ 2610♠7♣ 17202× the bet
48108♦4♠10♠ 229♣5♦A♠5♣ 209♥Q♣ 19404× the bet
47102♦6♥10♦ 187♣2♠J♣ 197♦J♣ 17202× the bet
46102♦Q♦A♠9♠ 227♦10♥ 17202× the bet
4510A♦9♣ 2010♥3♠6♥ 1900× the bet
4410K♣9♦ 193♠4♠5♣10♥ 22 bust00× the bet
43104♦7♥4♣9♠ 248♠K♥ 18202× the bet
42108♥6♠3♠ 177♥J♠ 17101× the bet
4110J♠J♣ 206♠K♦ 16 surrendered50.5× the bet
4010K♥J♦ 20J♦7♣ 1700× the bet
39109♥Q♠ 194♣6♣6♣ 16 doubled00× the bet
3810A♠7♠ 18A♥7♠4♠4♦4♣ 20202× the bet
3710J♣9♣ 198♣10♣ 1800× the bet
36107♦10♦ 179♦3♦3♥Q♣ 25 bust00× the bet
35108♦6♠10♣ 244♥7♠10♥ 21 doubled404× the bet
34103♦7♦6♠6♦ 224♣9♣ 13202× the bet
3310J♣J♣ 204♦A♦4♦ 1900× the bet
32109♥Q♥ 192♥2♥4♣7♣4♥ 19101× the bet
31109♦K♦ 1910♠4♣8♣ 22 bust00× the bet
30107♣6♣7♦ 202♣6♠Q♣ 1800× the bet
2910Q♣6♦ 16A♠Q♣ 21 blackjack252.5945× the bet
2810Q♠4♦10♠ 245♣9♥6♥ 20202× the bet
271010♦9♥ 19Q♣3♣K♣ 23 bust00× the bet
26109♠6♥ 152♣10♦3♥J♠ 25 bust00× the bet
25102♣Q♣A♠8♦ 215♥6♠Q♦ 21 doubled202× the bet
2410K♦J♥ 205♣J♣ 15 surrendered50.5× the bet
23107♥3♠ 10K♦A♥ 21 blackjack252.5945× the bet
2210A♣8♠ 1910♦6♦ 16 surrendered50.5× the bet
21103♣3♠J♦K♦ 262♥Q♣7♦ 19202× the bet
20104♣6♠2♦A♠2♥6♠ 214♦3♥J♥ 1700× the bet
19105♣K♥9♣ 24J♣Q♦ 20202× the bet
18104♠3♠9♠J♥ 26K♦8♣ 18202× the bet
17102♦4♣ 65♣7♣J♦ 22 bust00× the bet
16109♦3♠6♠ 187♥A♥4♥A♦6♠ 19202× the bet
1510K♦8♣ 185♣8♦2♦6♦ 21202× the bet
1410Q♣J♦ 209♥10♣ 1900× the bet
13106♠4♥5♠4♣ 19A♣3♣8♦ 12 doubled00× the bet
12108♠5♠4♦ 179♥7♠4♦ 20202× the bet
1110K♦3♥6♣ 19J♠K♠ 20202× the bet
1010K♠Q♣ 209♥8♣ 1700× the bet
910K♦2♥ 12Q♣5♥ 15 surrendered50.5× the bet
810A♠10♥ 21K♦4♠ 1400× the bet
710A♣8♠ 1910♦J♠ 20202× the bet
6107♠9♥ 16A♦Q♦ 21 blackjack252.5945× the bet
5107♦8♦7♦ 222♥9♣8♠ 19 doubled404× the bet
410Q♦10♥ 203♦Q♣4♦ 1700× the bet
3109♥10♠ 194♣5♦8♠ 1700× the bet
2104♣7♥J♠ 216♠2♦Q♠ 1800× the bet
1104♣7♠K♦ 21K♠3♠ 1300× 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
a9f25e020caadecfe670345e413fa53c950797fc7b273897cb4738e6dbef4e4f
Seed
ff0981894dcb56f1106800d9679d30bf955f7f21df540b386f0f167856608f33 SHA-256 of "degen.match.seed.v1", a zero byte and the 32 seed bytes is the seed hash.
Bettor's seed
1a55418f819b5474a9808af10ae0fecd
Commitment
Batch 65,154, Merkle root a868dd92d549da94287314e349c8d6ba9a4856f1d40a6224347251dc43f68f2b. Recorded by Degen Protocol; on-chain publication is not available yet. See this batch and its Merkle tree
Merkle path
  1. 44577a3f762640829df1281f98e63d701a054b2c2e4094e3b291d84613d75cd9
  2. b2ac0a7739d8dce2b8926fef2e32d98a869f09eeac061e57b550f2773004ba91
  3. ba50464ce72a6beac176629323a5132a4596b5ce89640904d3b76324a65f6d8b
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.