Degen Protocol
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Session against the house

Blackjack

ended Play money · b2387afae3370cdbe89f0b294e8f4854

Watch the replayThe handsThe rulesCheck it is fair

gbbagainst the house
Hands played
200
Wagered
2,220 play
Returned
2,195 play
Bettor's net
-25 play
Return
98.87%

Results by hand

Final
Hands
200
played
Pace
17.4/min
overall 19.3/min
Biggest swing
-20
Seat 1 · hand 11

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

SeatNetRateStreak
gbb-25-12.5 play/100won 4

Last hands

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

The hands

Newest first
#BetDealerHandsPaidChecked
50103♦10♠4♠ 172♣7♥3♣ 12 doubled00× the bet
49109♣6♥ 156♣J♣ 16 surrendered50.5× the bet
4810Q♣10♣ 207♥4♠7♥ 18 doubled00× the bet
47103♥6♠6♣9♥ 24A♠6♣3♣ 20 doubled404× the bet
46109♠Q♥ 199♥A♣ 20202× the bet
45104♥A♥9♠K♥ 24K♣6♥ 16202× the bet
4410K♥8♣ 186♥K♣ 16 surrendered50.5× the bet
4310Q♥7♦ 176♦Q♥ 16 surrendered50.5× the bet
42102♠8♠3♥7♦ 2010♦5♥ 1500× the bet
41102♣5♣10♥ 173♦2♦3♣5♦ 1300× the bet
40103♣5♦8♠8♦ 244♠8♠5♣ 17202× the bet
39106♠2♣3♣Q♦ 214♠2♠4♠A♠ 21101× the bet
3810J♠4♦ 14Q♣6♥ 16 surrendered50.5× the bet
37107♥2♠ 910♥5♠7♣ 22 bust00× the bet
36103♣10♠ 1310♥2♠J♣ 22 bust00× the bet
35106♦4♦A♠ 21Q♠J♣ 2000× the bet
34109♦2♥8♦ 19K♠10♣ 20202× the bet
33106♠Q♥6♦ 223♣4♦6♣ 13202× the bet
32103♠J♣3♠7♦ 236♠Q♣ 16202× the bet
3110Q♣5♠A♣6♥ 2210♠K♦ 20202× the bet
30109♠Q♠ 19A♠4♠J♥5♦ 20202× the bet
29106♦6♠7♥ 1910♣J♠ 20202× the bet
28103♥6♦8♣ 177♥10♥ 17101× the bet
27103♦8♦ 11A♣Q♠ 21 blackjack252.5945× the bet
2610A♠2♦Q♠10♠ 239♠5♠2♠5♠ 21202× the bet
25103♠5♠6♦9♣ 237♣8♥ 157♠10♦ 17404× the bet
2410Q♣J♦ 204♠9♦Q♣ 23 bust00× the bet
2310Q♠J♠ 203♣2♣4♠6♥2♥ 1700× the bet
22108♥Q♥ 18A♠5♥2♣ 18101× the bet
21103♠6♠K♠ 19Q♥K♥ 20202× the bet
20105♥A♠ 16A♥J♠ 21 blackjack252.5945× the bet
1910K♦Q♣ 20J♠3♠4♠ 1700× the bet
18103♥Q♦6♦ 199♦K♠ 19101× the bet
17108♦J♣ 1810♥2♠6♥ 18101× the bet
16108♣5♣ 134♠A♠8♥3♦Q♦ 26 bust00× the bet
1510Q♦2♥ 123♣A♦9♦K♣ 23 bust00× the bet
14108♣2♦7♣ 176♠6♦5♠ 17101× the bet
131010♥9♥ 19J♠A♣ 21 blackjack252.5945× the bet
121010♥9♠ 1910♠2♠5♥ 1700× the bet
11103♦7♣2♦8♣ 207♥3♠7♠ 17 doubled00× the bet
10105♥3♣8♠8♣ 249♠A♦ 20202× the bet
9109♠10♣ 195♣7♥A♥6♣ 19101× the bet
81010♥J♣ 208♥A♣ 1900× the bet
7102♠3♠10♠K♦ 258♣K♥ 18202× the bet
6107♣9♠A♥ 17Q♣5♦5♥ 20202× the bet
5106♦8♣7♥ 219♣J♦ 1900× the bet
4105♠2♠7♥J♦ 247♥J♥ 17202× the bet
3107♥5♣2♥Q♦ 24K♦K♣ 20202× the bet
2104♦4♥5♥3♣Q♦ 26A♦2♣8♥ 21202× the bet
1103♥Q♠8♥ 21J♥J♣ 2000× 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
63fc16cfc7850cebd7aa2f3a783971eaee6532de372ec3a2e5d00d81ea69e118
Seed
d02c8cb1cffcd10de34c64854a592e6a1fcc6c99c16872f2529a40905a1703c9 SHA-256 of "degen.match.seed.v1", a zero byte and the 32 seed bytes is the seed hash.
Bettor's seed
893e4a9e158acdbac2e02334dc8cbaaa
Commitment
Batch 66,751, Merkle root fa87f5e00ed34e93801f05a14b00ad6dad0db2924d6a76d969c3466301a37315. Recorded by Degen Protocol; on-chain publication is not available yet. See this batch and its Merkle tree
Merkle path
  1. d45b879bb31da2f51595d977485bb7b249a877bf34128af609c9bc21e3400652
  2. 96e2d74a0fb16e5522d283f59599717b3bfe37bf0f9058bf0a09957c7f4dfb15
  3. df09958d39b4de781954115ce6ed81ab116f3ace41324177af33003c28b4aeac
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.