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Degen Protocol
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Session against the house

Blackjack

ended Play money · 894be51201965ae3c8af9408c4498247

Watch the replayThe handsThe rulesCheck it is fair

gbbagainst the house
Hands played
200
Wagered
2,310 play
Returned
2,215 play
Bettor's net
-95 play
Return
95.89%

Results by hand

Final
Hands
200
played
Pace
21.5/min
overall 19.7/min
Biggest swing
-40
Seat 1 · hand 48

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

SeatNetRateStreak
gbb-95-47.5 play/100lost 2

Last hands

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

The hands

Newest first
#BetDealerHandsPaidChecked
501010♠Q♦ 208♦4♣4♦4♦ 20101× the bet
49109♦6♠10♦ 25K♦K♦ 20202× the bet
48106♣5♦J♠ 216♦A♦10♥ 17 doubled6♦5♣4♥ 15 doubled00× the bet
47102♣3♣2♣3♣10♦ 2010♠9♦ 1900× the bet
46106♦6♣4♣10♦ 26J♣6♠ 16202× the bet
45105♠6♥5♠K♥ 262♠9♦6♦ 17 doubled404× the bet
44106♦7♣J♠ 23K♠9♥ 19202× the bet
43109♠4♣A♠8♠ 22K♦J♦ 20202× the bet
42108♦Q♦ 18K♠Q♣ 20202× the bet
41104♠2♠2♦4♠7♣ 199♦10♣ 19101× the bet
40108♥10♦ 186♣2♣K♦ 18101× the bet
391010♥10♣ 206♦3♣10♥ 1900× the bet
3810J♠9♠ 199♥K♠ 19101× the bet
3710A♦10♠ 215♥4♣ 900× the bet
36105♣K♥4♣ 196♠2♥2♥10♣ 20202× the bet
35109♣A♦ 20J♦Q♥ 20101× the bet
3410Q♣Q♥ 20J♠10♠ 20101× the bet
33107♦4♠Q♣ 217♦10♦ 1700× the bet
32106♣10♣6♠ 22Q♣8♣ 18202× the bet
3110Q♠3♦ 135♣K♣ 15 surrendered50.5× the bet
30109♣A♥ 2010♣3♣10♣ 23 bust00× the bet
291010♣J♦ 206♠8♥6♦ 20101× the bet
2810J♦J♣ 207♠J♥ 1700× the bet
27103♠K♠2♥8♠ 235♠J♣ 15202× the bet
26104♣4♦5♠3♠8♠ 248♦Q♠ 18202× the bet
25102♥A♠8♦ 21J♠3♣ 1300× the bet
241010♣6♥4♥ 204♥5♦K♥ 1900× the bet
2310K♥4♥ 148♣6♠A♠9♦ 24 bust00× the bet
22105♣7♣3♥5♦ 205♠10♦ 1500× the bet
21107♦2♥ 9Q♠6♠6♠ 22 bust00× the bet
2010A♥J♥ 213♥5♠ 800× the bet
1910J♦Q♠ 205♠4♥10♥ 1900× the bet
18109♣2♥Q♠ 219♠8♠ 1700× the bet
1710J♣5♦10♠ 259♦J♦ 19202× the bet
1610K♥6♥J♥ 262♣5♠6♠8♠ 21202× the bet
15109♥9♠ 182♦10♠A♥6♣ 19202× the bet
14102♥K♣A♣10♠ 237♠3♦A♣ 21 doubled7♥J♥ 17606× the bet
13108♣J♦ 186♦5♠2♣ 13 doubled00× the bet
1210J♠10♠ 207♦5♠3♥Q♥ 25 bust00× the bet
111010♣Q♠ 20K♥5♠ 15 surrendered50.5× the bet
10107♠K♦ 173♠2♦Q♥9♠ 24 bust00× the bet
910J♦10♦ 204♠K♣A♣Q♥ 25 bust00× the bet
81010♥9♠ 192♣A♦8♣ 21202× the bet
710A♦10♥ 213♣3♦ 600× the bet
610A♠5♥ 165♣Q♥J♠ 25 bust00× the bet
5108♥A♠ 195♦6♣10♠ 21 doubled404× the bet
410J♠6♥ 168♦2♣2♦A♥Q♦ 23 bust00× the bet
3105♥4♣2♦10♠ 21K♣7♠ 1700× the bet
2109♠A♣ 202♥J♥5♣ 1700× the bet
1108♦10♥ 187♦J♦ 1700× 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
40bde79bb0058115be9cc924f4ec990c1619a62112c1e2a146ba056a6559b7da
Seed
0e1fef989abbea9e0ef0049ce66448f2f281d4c0310ced3afff4029fc18c0f87 SHA-256 of "degen.match.seed.v1", a zero byte and the 32 seed bytes is the seed hash.
Bettor's seed
c63a6276abf92de643a73dd77c16de01
Commitment
Batch 64,086, Merkle root 29cff13a91918849f63d9807bfdb404163ef40364ffe9c7d1f6a85deb0c4359e. Recorded by Degen Protocol, not on a chain. See this batch and its Merkle tree
Merkle path
  1. a0c7001a313d403a559be8dbddde8e425d84875d29445e70311a154d9223fc26
  2. 23226e99f787ec1b6ed93b70b1b12e40d3424631b14119010af4a6a7ce4b36a3
  3. 2cdc9564e268e0f8d00b50654641e1e7bdf4cd9a7a3f03d8d05e14c528761fa4
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.