Degen Protocol
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Session against the house

Blackjack

ended Play money · f8266053e05d27e56c9f907e352917f2

Watch the replayThe handsThe rulesCheck it is fair

gbbagainst the house
Hands played
200
Wagered
2,280 play
Returned
2,425 play
Bettor's net
+145 play
Return
106.36%

Results by hand

Final
Hands
200
played
Pace
20.8/min
overall 20.1/min
Biggest swing
+30
Seat 1 · hand 20

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

SeatNetRateStreak
gbb+145+72.5 play/100lost 2

Last hands

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

The hands

Newest first
#BetDealerHandsPaidChecked
50107♥K♦ 179♥A♥ 20202× the bet
4910J♣8♦ 186♥5♣J♦ 21 doubled404× the bet
4810A♦10♦ 218♥3♠ 1100× the bet
47105♦9♦3♦ 179♦Q♣ 19202× the bet
46107♥8♥2♣ 17A♦9♠ 20202× the bet
45109♠J♥ 197♥Q♥ 1700× the bet
441010♥4♦3♠ 17K♠7♠ 17101× the bet
43107♦J♣ 178♠K♠ 18202× the bet
42109♠A♠ 206♦8♠J♣ 24 bust00× the bet
4110A♣A♥K♠J♦ 229♣8♦ 17202× the bet
4010J♣A♥ 2110♦A♦ 21 blackjack101× the bet
39107♠9♦6♠ 228♥3♦A♥ 12 doubled8♣Q♠ 18606× the bet
38104♦2♦4♠9♣ 192♣3♠K♦ 1500× the bet
3710A♦2♥7♠ 20Q♠10♠ 20101× the bet
36106♠3♦5♣2♥A♠ 17K♣5♥ 1500× the bet
35107♣4♠10♣ 21Q♥4♦7♥ 21101× the bet
3410A♠4♠3♦ 188♦4♠5♦ 178♠J♣ 188♥6♣6♠ 20303× the bet
33104♣7♦5♥10♥ 263♣7♦Q♦ 20 doubled404× the bet
321010♥J♠ 208♥2♦10♠ 20101× the bet
3110Q♥J♣ 20J♣4♠A♦Q♦ 25 bust00× the bet
3010J♦A♣ 212♣2♦ 400× the bet
2910A♣4♥ 153♥10♦Q♦ 23 bust00× the bet
28109♣10♦ 192♠4♦A♠7♥2♦4♥ 20202× the bet
27107♣A♦ 189♥9♠ 18101× the bet
26105♥2♥ 7K♠A♣ 21 blackjack252.5945× the bet
2510A♦10♦ 21K♦Q♦ 2000× the bet
2410Q♦6♠5♣ 21J♥9♦ 1900× the bet
2310J♦2♦ 12J♠5♣ 15 surrendered50.5× the bet
22104♣J♦6♣ 202♣3♥8♦ 1300× the bet
21107♣4♠9♣ 209♣10♥ 1900× the bet
20107♣8♥10♦ 253♦A♥K♥3♣ 173♣8♠4♦ 15 doubled606× the bet
19107♦Q♥ 17J♥8♣ 18202× the bet
1810J♥8♣ 187♠Q♦ 1700× the bet
1710A♥3♠8♠A♥A♦K♦ 244♦5♠K♥ 19202× the bet
1610A♥A♣A♦10♦J♣ 238♣2♦9♠ 19202× the bet
1510K♦Q♣ 20Q♠6♥ 16 surrendered50.5× the bet
14104♣4♠6♥A♦J♣ 254♠6♥10♣ 20 doubled404× the bet
13102♠3♣Q♦10♠ 25K♠4♥ 14202× the bet
121010♦10♣ 209♥7♠ 16 surrendered50.5× the bet
1110A♠Q♥ 212♥6♣ 800× the bet
1010J♣K♦ 20A♦Q♥ 21 blackjack252.5945× the bet
910J♥7♠ 173♦8♠7♣ 18 doubled404× the bet
8104♠2♦Q♠6♠ 228♥5♥ 13202× the bet
7103♣A♦3♠ 17J♠9♦ 19202× the bet
6105♥Q♥8♥ 237♥K♣ 17202× the bet
510K♦2♠A♦7♣ 20Q♠J♥ 20101× the bet
4105♦4♦Q♠ 193♣2♠10♣ 1500× the bet
310Q♥Q♦ 20A♣2♠A♣7♦ 21202× the bet
2106♠7♣6♦ 193♣4♣9♠ 1600× the bet
1107♥A♠ 182♣9♥4♣ 15 doubled00× 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
6b4bcc7f4893a1c60fdd7e1613deaa0421165616aa71cbe3f135a1d55ebe7693
Seed
9484c02dfd88970e9eae4bec187dfac9b42773250070cb1feb114e26e1bcbab7 SHA-256 of "degen.match.seed.v1", a zero byte and the 32 seed bytes is the seed hash.
Bettor's seed
5620e21c5968ed5966bbc5b4fa723e30
Commitment
Batch 67,646, Merkle root c3f48a929f435ac119fa47d293e755521ef40e08a74cdf69da86e896e4a0c2f0. Recorded by Degen Protocol; on-chain publication is not available yet. See this batch and its Merkle tree
Merkle path
  1. eb56f6fcd6867eebe6d35363a763310d2e4a37462f122a292de541f661cc95da
  2. edd40dbcefecc363924f24fdb8a66781027177041f983abd28f8520addf2d075
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.