Degen Protocol
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Session against the house

Blackjack

ended Play money · 7b3a7dc22b3799e8f3f19f45374499e3

Watch the replayThe handsThe rulesCheck it is fair

gbbagainst the house
Hands played
200
Wagered
2,210 play
Returned
2,205 play
Bettor's net
-5 play
Return
99.77%

Results by hand

Final
Hands
200
played
Pace
20.3/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-5-2.5 play/100won 5

Last hands

  1. 200Seat 1+10
  2. 199Seat 1+10
  3. 198Seat 1+10
  4. 197Seat 1+10
  5. 196Seat 1+20
  6. 195Even0
  7. 194Even0
  8. 193Seat 1+15
  9. 192Seat 1+10
  10. 191Even0
  11. 190Seat 1+10
  12. 189Even0

The hands

Newest first
#BetDealerHandsPaidChecked
50109♠Q♥ 198♥7♣Q♣ 25 bust00× the bet
4910Q♣6♥9♣ 257♦Q♦ 17202× the bet
4810A♦5♦J♦4♦ 20J♦7♠ 1700× the bet
4710K♦Q♥ 206♥10♣ 16 surrendered50.5× the bet
4610J♣K♣ 207♥9♣ 16 surrendered50.5× the bet
451010♠Q♣ 20K♣J♥ 20101× the bet
44109♠10♥ 1910♥4♥8♥ 22 bust00× the bet
43106♥3♦Q♥ 19Q♠6♦ 1600× the bet
4210K♣A♦ 217♣9♣ 1600× the bet
41109♠4♥9♣ 229♦10♠ 19202× the bet
40103♠5♠J♠ 186♥8♣ 1400× the bet
3910Q♥Q♣ 20K♦8♦ 1800× the bet
3810J♦9♦ 193♦A♦Q♦8♦ 22 bust00× the bet
37102♥4♠9♣J♣ 2510♠K♠ 20202× the bet
36106♥10♣A♦ 17K♥9♥ 19202× the bet
35108♦2♠9♦ 195♣A♦J♣A♥ 1700× the bet
34107♠A♦ 185♦Q♥9♠ 24 bust00× the bet
3310K♥5♣2♣ 1710♠9♦ 19202× the bet
3210J♠2♠A♠2♦K♣ 25Q♦9♥ 19202× the bet
3110J♦3♥ 13K♦6♦ 16 surrendered50.5× the bet
3010J♦3♣ 13A♦10♥ 21 blackjack252.5945× the bet
29109♣9♠ 183♠2♦K♦8♣ 23 bust00× the bet
2810K♠8♣ 184♣3♥4♦8♣ 19202× the bet
2710K♠4♣ 14A♦J♠ 21 blackjack252.5945× the bet
2610J♦5♦ 154♦K♥K♦ 24 bust00× the bet
25108♥6♠ 14A♦Q♣ 21 blackjack252.5945× the bet
24107♥9♣ 162♠A♣3♦Q♥J♦ 26 bust00× the bet
2310J♥Q♥ 2010♣4♥J♣ 24 bust00× the bet
2210J♥9♣ 19K♦8♥ 1800× the bet
21107♥Q♥ 176♥3♠8♣ 17101× the bet
20105♥7♠2♣4♣ 18K♣10♣ 20202× the bet
19103♥K♦10♦ 23Q♦9♣ 19202× the bet
1810A♣9♥ 205♣Q♦6♥ 21202× the bet
17109♥7♦5♠ 213♠2♣3♠9♦ 1700× the bet
16103♣10♣8♣ 21K♦9♥ 1900× the bet
15106♦9♠8♠ 23J♣3♥ 13202× the bet
1410Q♣7♣ 17A♦5♣8♥4♠ 18202× the bet
1310K♠5♠3♦ 183♠8♥10♠ 21 doubled404× the bet
1210K♠2♣ 124♥K♥J♠ 24 bust00× the bet
111010♠6♣ 166♣9♣ 15 surrendered50.5× the bet
1010A♥6♠ 175♠7♠7♥ 19202× the bet
9103♠2♠K♦9♣ 24K♦3♦ 13202× the bet
810Q♥K♠ 20J♥J♣ 20101× the bet
7104♣4♥9♥ 176♦5♥6♥ 17 doubled6♥9♥ 15202× the bet
6103♥5♦6♣3♦ 174♠A♣J♥ 1500× the bet
510A♣3♣7♠ 214♠Q♦3♥ 1700× the bet
410J♥Q♠ 20J♠9♠ 1900× the bet
3106♣4♠3♠K♣ 239♠6♠ 15202× the bet
210K♥Q♠ 20K♦10♠ 20101× the bet
110Q♠8♦ 184♦8♠4♥J♥ 26 bust00× 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
171baee304784d7225264637cb82726c9a7542edf97a4d2a463b75c87f8ae18e
Seed
ad5614f6fc32fc8a56859f94eee128e185dc3eaf945f562d093e16777803d8c8 SHA-256 of "degen.match.seed.v1", a zero byte and the 32 seed bytes is the seed hash.
Bettor's seed
0ea521a7ad609e5f1b5ff332069b2ab2
Commitment
Batch 70,731, Merkle root 93127dc54bd523350e9bae2c15ede48c9534b272eeb8e53a85f69d6b3d916fa7. Recorded by Degen Protocol; on-chain publication is not available yet. See this batch and its Merkle tree
Merkle path
  1. d55164130b1c232af85d7f9899e7d2f87379c1a94521f859e9e5a928db518218
  2. 07ff37ae3da8ee71420e9b25dabc155b43deac1f14d4d6aeea73a7af6919167c
  3. c65d2dd1d2c30832e874b48473f85b1fd40a125e8124bdf46cc478597ea11b80
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.