Degen Protocol
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Session against the house

Blackjack

ended Play money · ba67732e15062f9a57ee7f604151f7d9

Watch the replayThe handsThe rulesCheck it is fair

gbbagainst the house
Hands played
200
Wagered
2,330 play
Returned
2,205 play
Bettor's net
-125 play
Return
94.64%

Results by hand

Final
Hands
200
played
Pace
20.0/min
overall 20.3/min
Biggest swing
+30
Seat 1 · hand 41

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

SeatNetRateStreak
gbb-125-62.5 play/100won 2

Last hands

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

The hands

Newest first
#BetDealerHandsPaidChecked
50103♥2♥ 54♣A♠7♥10♥ 22 bust00× the bet
49102♠J♠9♠ 214♣6♥7♦ 17 doubled00× the bet
4810Q♠9♣ 198♠9♣ 1700× the bet
471010♠4♣ 14J♠6♥ 16 surrendered50.5× the bet
4610A♦4♣4♦ 197♠3♣4♥3♥ 1700× the bet
4510K♣3♦ 13K♣A♥ 21 blackjack252.5945× the bet
44107♣K♣ 178♠Q♣ 188♥5♥A♦5♦ 19404× the bet
43107♥10♣ 17J♠A♣ 21 blackjack252.5945× the bet
42109♥A♠ 20A♠2♣9♦Q♥ 22 bust00× the bet
41104♦10♠8♥ 229♠2♦5♠ 16 doubled9♠3♣ 12606× the bet
401010♣10♠ 202♣4♣2♠K♣ 1800× the bet
3910J♠Q♥ 207♣9♥ 16 surrendered50.5× the bet
38108♣Q♣ 183♣2♠3♦9♠ 1700× the bet
37107♥3♣8♣ 184♥A♠3♠ 18101× the bet
36105♥K♣ 15K♥A♠ 21 blackjack252.5945× the bet
35104♥K♥5♥ 196♠4♠10♠ 20 doubled404× the bet
34108♥4♠10♥ 227♦9♥5♣ 21202× the bet
33109♠K♦ 1910♣7♥ 1700× the bet
32108♠2♣5♣Q♠ 252♥5♠10♦ 17202× the bet
31105♣J♥Q♦ 253♥4♥J♠ 17202× the bet
3010J♠7♠ 179♣6♣ 15 surrendered50.5× the bet
29104♦2♦ 6A♦J♦ 21 blackjack252.5945× the bet
28105♦10♠4♥ 199♥4♦ 1300× the bet
27102♣J♠Q♥ 229♦J♦ 19202× the bet
26102♠A♥2♥8♦5♠ 188♠2♣3♣ 13 doubled00× the bet
25107♣K♦ 17J♣3♠5♠ 18202× the bet
24106♦3♦4♣7♦ 206♠A♣4♥ 21 doubled404× the bet
23102♦3♠9♠9♥ 239♣Q♣ 19202× the bet
22107♦Q♣ 173♣7♠2♥ 12 doubled00× the bet
2110K♠7♥ 17Q♣7♠ 17101× the bet
2010J♠K♣ 2010♦6♣ 16 surrendered50.5× the bet
19107♠K♦ 17A♥J♥ 21A♥10♦ 21404× the bet
18107♠4♥ 116♣9♦A♣10♥ 26 bust00× the bet
171010♥K♠ 202♦A♥9♣6♦ 1800× the bet
161010♠5♣10♣ 254♣A♥A♦A♣10♠ 17202× the bet
15105♥10♣7♥ 222♣7♠7♦ 16 doubled404× the bet
14104♣9♠8♠ 218♦10♦ 1800× the bet
13106♣7♦3♠5♠ 21Q♥K♦ 2000× the bet
1210A♠3♦2♦J♦5♥ 219♦5♣5♥ 1900× the bet
11107♥9♠Q♣ 267♠5♣3♣3♦ 18202× the bet
10107♥5♦10♣ 229♣4♣8♦ 21202× the bet
9109♠2♣5♥5♠ 217♥7♦4♠ 1800× the bet
810J♣Q♠ 20J♣J♠ 20101× the bet
7102♠5♦Q♣ 1710♥3♣ 1300× the bet
6108♥J♣ 18J♠4♣Q♠ 24 bust00× the bet
5109♣9♥ 182♦J♦6♦ 18101× the bet
410A♣7♦ 186♠J♠ 16 surrendered50.5× the bet
310J♥Q♦ 207♥2♥9♦ 1800× the bet
210A♣6♣ 172♣4♥3♣K♠ 19202× the bet
1102♥10♠7♦ 196♣K♦ 1600× 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
05941fc284e3c1ed2932c1bf529e69e7b216debd5187e148122ca2db44bed849
Seed
5fddaa731630013aba06457528631266071f92841ad3aa98af496e2bf27e6f41 SHA-256 of "degen.match.seed.v1", a zero byte and the 32 seed bytes is the seed hash.
Bettor's seed
10716e192dce699885bdba7d5e27963a
Commitment
Batch 68,480, Merkle root 55020f8bdf2cc03328a77e1bfcc90d94e6bc8eb36a19530ecfd20e0b012c6050. Recorded by Degen Protocol; on-chain publication is not available yet. See this batch and its Merkle tree
Merkle path
  1. bd9984292d2bee6dccfce1ccdc386b24368074d4260ac8eb7fa42a9641836560
  2. c566e709ea48440e160e4e1e926a1a76e7a024cc118077f00730d5a95ef24c31
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.