Degen Protocol
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Session against the house

Blackjack

ended Play money · 67a7b180b04a75f672db204c12e998b5

Watch the replayThe handsThe rulesCheck it is fair

gbbagainst the house
Hands played
200
Wagered
2,250 play
Returned
2,105 play
Bettor's net
-145 play
Return
93.56%

Results by hand

Final
Hands
200
played
Pace
22.3/min
overall 21.3/min
Biggest swing
+30
Seat 1 · hand 167

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

SeatNetRateStreak
gbb-145-72.5 play/100lost 1

Last hands

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

The hands

Newest first
#BetDealerHandsPaidChecked
50105♥Q♥2♦ 178♣A♠ 19202× the bet
49105♠9♦9♦ 236♣A♦6♠ 13 doubled404× the bet
48106♥5♦6♥ 172♥8♥J♥ 20 doubled404× the bet
471010♠10♦ 20Q♣3♣9♦ 22 bust00× the bet
46106♦A♣ 178♣3♦7♠ 18 doubled404× the bet
45108♦3♣ 1110♦4♠8♦ 22 bust00× the bet
4410J♠A♦ 215♥9♠ 1400× the bet
43107♥10♣ 179♠8♥ 17101× the bet
421010♦4♦ 148♣7♥ 15 surrendered50.5× the bet
4110K♣4♦2♣10♣ 267♣J♥ 17202× the bet
40102♣Q♦6♥ 188♣6♥ 1400× the bet
39102♦2♦6♦9♦ 198♠7♣ 1500× the bet
3810Q♥3♦ 134♣K♥9♣ 23 bust00× the bet
37103♣3♠J♦8♦ 243♣6♣K♠ 19 doubled404× the bet
3610K♦10♠ 20K♥K♠ 20101× the bet
3510K♣8♥ 1810♣3♣7♠ 20202× the bet
3410J♥10♥ 206♣J♦ 16 surrendered50.5× the bet
33102♦5♣ 7A♠K♠ 21 blackjack252.5945× the bet
32107♠8♣ 15J♠A♦ 21 blackjack252.5945× the bet
31108♥6♠A♦9♥ 24K♠3♦7♥ 20202× the bet
30108♣6♠3♣ 177♦K♣ 17101× the bet
29103♠4♦A♦ 187♠6♦ 1300× the bet
28103♣7♣4♦3♣ 17A♦2♥9♠A♣ 1300× the bet
27107♦8♠10♥ 258♦J♠ 18202× the bet
261010♥9♠ 19A♦5♣K♣A♣ 1700× the bet
25102♦K♥4♥2♠ 18K♠K♠ 20202× the bet
24108♣K♣ 188♦10♥ 18101× the bet
2310A♣4♠2♠ 178♠9♦ 178♣9♥ 17202× the bet
22108♣6♣ 148♣5♥K♥ 23 bust00× the bet
21104♠2♠9♥K♠ 253♥A♦J♣ 14202× the bet
20109♣J♦ 193♥3♦A♣7♥6♥ 20202× the bet
19103♦10♠5♦ 18K♦9♦ 19202× the bet
18105♦5♣Q♣ 207♠Q♠ 1700× the bet
1710J♥2♦10♦ 229♦J♣ 19202× the bet
16109♦J♣ 192♦8♣3♦ 13 doubled00× the bet
15104♥J♠K♠ 2410♠3♥ 13202× the bet
1410Q♠6♦ 16J♣A♦ 21 blackjack252.5945× the bet
13106♣3♣7♠3♥ 192♣Q♦ 1200× the bet
12104♥7♦ 11A♠10♣ 21 blackjack252.5945× the bet
1110J♠10♠ 20J♥K♦ 20101× the bet
1010J♦A♦ 21A♣7♣ 1800× the bet
9105♥5♦6♠7♥ 235♥Q♣ 15202× the bet
81010♦9♥ 198♣3♠4♣ 15 doubled00× the bet
7108♣6♣K♦ 24Q♠9♦ 19202× the bet
6106♦J♥Q♣ 265♦4♦10♦ 19 doubled404× the bet
5104♣2♥2♠2♣4♠6♦ 20A♣8♠ 1900× the bet
4107♥K♥ 172♠A♣3♦6♦5♥ 17101× the bet
3107♣A♣ 187♦K♥ 1700× the bet
2106♠6♣3♣J♣ 25Q♠6♣ 16202× the bet
1109♦6♠ 1510♣5♦K♣ 25 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
0f17e096f09fa205bcdbe3d3bc1f7eb1750f2a2116993f4f083623037f84abb7
Seed
f587cc657863828846f7414d645d90b39651e8cae432f5dfe537f38a23a9ce61 SHA-256 of "degen.match.seed.v1", a zero byte and the 32 seed bytes is the seed hash.
Bettor's seed
102c55b0ca16fbc226fc9e6f894102ec
Commitment
Batch 68,916, Merkle root 47ad685d9c2ed71d2a78f870dc66228455a7bce9112f323e4163258465ae31a0. Recorded by Degen Protocol; on-chain publication is not available yet. See this batch and its Merkle tree
Merkle path
  1. 67011c928eaddf4d45a5faa52faf352248e5a3f8d3802a94eb81ef1be9fcf23a
  2. 380272d2943e1017712f7a59ccee349b1c934f5f4f3ddf564c961fa59454e590
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.