Degen Protocol
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Session against the house

Blackjack

ended Play money · 244ce4903db56e0869c4aaf8f2603f50

Watch the replayThe handsThe rulesCheck it is fair

gbbagainst the house
Hands played
200
Wagered
2,310 play
Returned
2,105 play
Bettor's net
-205 play
Return
91.13%

Results by hand

Final
Hands
200
played
Pace
16.7/min
overall 19.3/min
Biggest swing
-50
Seat 1 · hand 168

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

SeatNetRateStreak
gbb-205-102.5 play/100won 1

Last hands

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

The hands

Newest first
#BetDealerHandsPaidChecked
50102♦8♦2♥6♦ 184♣10♦ 1400× the bet
491010♠J♠ 204♥7♣8♦ 19 doubled00× the bet
4810A♠6♣ 17K♠6♥ 16 surrendered50.5× the bet
47108♦5♦5♥ 188♠K♦ 18101× the bet
4610A♦9♣ 206♣Q♣ 16 surrendered50.5× the bet
45103♥6♠2♥3♥2♦5♣ 218♠5♦ 1300× the bet
4410K♣Q♦ 207♥6♥J♥ 23 bust00× the bet
4310J♥9♠ 193♣2♠3♠8♥Q♠ 26 bust00× the bet
42103♥K♠6♣ 19K♣9♥ 19101× the bet
411010♦K♠ 20K♣K♠ 20101× the bet
40102♠3♥A♠4♣ 202♥8♣J♦ 20 doubled202× the bet
3910K♣9♣ 195♠Q♣ 15 surrendered50.5× the bet
3810J♣Q♠ 205♠10♥ 15 surrendered50.5× the bet
3710A♠9♣ 208♣K♦ 1800× the bet
36106♠Q♥7♣ 2310♦8♥ 18202× the bet
3510A♥2♣ 13K♥4♥K♠ 24 bust00× the bet
3410Q♥Q♠ 2010♠6♦ 16 surrendered50.5× the bet
33105♠10♦2♦ 17J♣10♠ 20202× the bet
321010♦10♣ 209♣K♠ 1900× the bet
3110A♣10♥ 21A♠10♦ 21 blackjack101× the bet
301010♦10♥ 20A♠3♦K♣2♥9♠ 25 bust00× the bet
29105♣A♠5♥ 212♠3♠A♣J♥ 1600× the bet
2810K♥10♣ 207♣A♣Q♠ 1800× the bet
2710A♣4♥ 15A♦10♦ 21 blackjack252.5945× the bet
26105♥4♥10♥ 196♦5♣7♦ 18 doubled00× the bet
25109♣9♥ 182♥9♠A♥ 12 doubled00× the bet
2410Q♣5♣8♠ 233♣4♣3♣K♠ 20202× the bet
23107♦9♥3♦ 195♥6♠K♠ 21 doubled404× the bet
2210Q♠6♥ 16Q♥6♣ 16 surrendered50.5× the bet
21104♠8♦8♠ 20J♠7♥ 1700× the bet
20107♥8♣5♠ 206♥8♥7♦ 21202× the bet
19106♠J♦9♣ 252♥3♥J♣ 15202× the bet
1810J♥A♠ 21Q♣2♠ 1200× the bet
17108♠Q♣ 184♥A♦7♥6♥ 18101× the bet
161010♠Q♣ 206♥3♥K♣ 1900× the bet
15103♣5♠ 8A♠J♦ 21 blackjack252.5945× the bet
1410Q♥8♦ 183♥7♠6♥6♣ 22 bust00× the bet
1310J♦K♣ 204♥7♠9♣ 20 doubled202× the bet
12102♦8♥7♦ 176♣8♦ 1400× the bet
111010♣10♦ 204♦4♣6♣9♥ 23 bust00× the bet
10102♠A♦3♦9♥3♥ 185♥7♣A♦ 1300× the bet
9105♥2♣6♠K♥ 2310♣6♣ 16202× the bet
810J♣7♥ 176♦J♦ 16 surrendered50.5× the bet
710A♣5♥2♥ 188♠9♣ 1700× the bet
610J♦4♣ 149♥5♥J♣ 24 bust00× the bet
510A♠Q♦ 2110♥7♣ 1700× the bet
4109♣3♥10♥ 2210♠Q♥ 20202× the bet
3102♦7♥Q♣ 19A♠3♣Q♣ 1400× the bet
2104♥5♦7♦3♦ 196♥2♦A♥ 19101× the bet
1102♥3♥4♣6♣9♦ 24Q♥J♦ 20202× 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
8aa5d57e1db33ed864d1aeef55a6d30ac6fb3aa691fce4795c6e351da6463cdf
Seed
032b9bbd32e8ba5f4f36f468b39df7c3dd6e86f1e863f3e5ac288bec7edc412e SHA-256 of "degen.match.seed.v1", a zero byte and the 32 seed bytes is the seed hash.
Bettor's seed
28eb68448c0c5d8f8f66108c44dfa35f
Commitment
Batch 67,332, Merkle root 93105673d5c647ecfde8d0c6c63733f1bf527693bcbf9b216d6795617e63af82. Recorded by Degen Protocol; on-chain publication is not available yet. See this batch and its Merkle tree
Merkle path
  1. 36062b3ca454ff2edbf2595ec19486072251e18715aaa283ba04c96b15207a26
  2. 3ac95c181aafa457d1735b7fa26237b8266416307990c66521ccba043ba43f43
  3. 3584bf8baaa4f8bd07f9851c64eb40514848d0fc7b72625b245af7a45ac6dc26
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.