Degen Protocol
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Session against the house

Blackjack

ended Play money · fe469c38d0a50eb29d1e9e643f11726d

Watch the replayThe handsThe rulesCheck it is fair

gbbagainst the house
Hands played
200
Wagered
2,260 play
Returned
2,360 play
Bettor's net
+100 play
Return
104.42%

Results by hand

Final
Hands
200
played
Pace
18.7/min
overall 19.6/min
Biggest swing
+40
Seat 1 · hand 54

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

SeatNetRateStreak
gbb+100+50.0 play/100lost 1

Last hands

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

The hands

Newest first
#BetDealerHandsPaidChecked
50106♥7♦ 13K♠A♠ 21 blackjack252.5945× the bet
4910Q♣Q♣ 205♣7♠4♠2♦ 1800× the bet
4810Q♥A♦ 218♣5♠ 1300× the bet
47105♣4♥5♥K♣ 24Q♣3♣ 13202× the bet
46104♠K♠J♠ 245♦7♦ 12202× the bet
4510J♥K♥ 20J♥5♥ 15 surrendered50.5× the bet
44108♠2♥8♠ 182♣A♦7♣ 20202× the bet
43103♠7♦K♦ 203♠10♥ 1300× the bet
42103♠2♣ 5A♦K♥ 21 blackjack252.5945× the bet
4110J♣J♠ 20A♣Q♥ 21 blackjack252.5945× the bet
40108♥9♣ 17A♥Q♥ 21 blackjack252.5945× the bet
39108♣K♦ 183♥J♣10♥ 23 bust00× the bet
38108♠6♥A♠J♦ 25K♦7♣ 17202× the bet
37108♦5♣ 137♦2♥3♦10♥ 22 bust00× the bet
3610J♣J♦ 203♥Q♣3♠7♥ 23 bust00× the bet
35105♣10♠2♦ 17J♥8♦ 18202× the bet
34105♦5♦5♠6♠ 217♦Q♥ 177♣5♠ 1200× the bet
33102♣J♥ 12K♦A♣ 21 blackjack252.5945× the bet
32103♥4♣2♦3♥3♣7♠ 22K♦Q♠ 20202× the bet
31106♦A♣ 173♥5♥2♦A♥ 21202× the bet
30109♠3♣ 126♥7♥10♥ 23 bust00× the bet
29102♦K♠Q♠ 223♦2♣5♣J♦ 20202× the bet
28107♦7♦8♣ 225♥7♠6♣ 18202× the bet
27107♠4♥Q♠ 21A♠7♣ 1800× the bet
26102♥3♣A♠2♦ 18J♦3♥ 1300× the bet
25103♥9♣2♣10♠ 24A♣8♦ 19202× the bet
2410K♠7♣ 176♥7♥9♠ 22 bust00× the bet
23104♦J♣5♦ 196♦9♣ 1500× the bet
22105♥4♣8♦ 17A♥6♣10♠ 17 doubled202× the bet
21107♥9♣5♣ 21K♣4♦6♠ 2000× the bet
2010A♣2♦ 137♦9♦ 16 surrendered50.5× the bet
1910K♣9♦ 198♥2♥Q♥ 20202× the bet
181010♦4♦ 149♥5♣J♥ 24 bust00× the bet
17108♣K♥ 182♠5♦J♠ 1700× the bet
16104♣2♣6♣Q♣ 22J♠8♠ 18202× the bet
15106♥A♣ 17A♣5♠4♦ 20 doubled404× the bet
14102♣J♥J♥ 222♣4♥10♣ 16202× the bet
131010♠5♦5♣ 203♣K♣4♣ 1700× the bet
12103♦5♥9♣ 17Q♣9♠ 19202× the bet
11106♦6♥10♠ 226♥10♥ 16202× the bet
10104♥6♦6♣3♣ 19Q♥Q♥ 20202× the bet
9108♠6♣10♠ 24Q♣9♠ 19202× the bet
8106♣4♣6♠7♠ 235♦A♣5♠ 21 doubled404× the bet
7104♦7♥5♥3♠ 194♠J♦ 1400× the bet
610Q♠10♠ 202♦9♦Q♣ 21 doubled404× the bet
5102♠Q♦A♦9♣ 225♣3♥6♦ 14202× the bet
4103♣6♠3♦K♠ 22A♠3♠J♣ 14202× the bet
310J♣8♥ 18K♣8♣ 18101× the bet
210A♣3♠Q♠2♠J♦ 265♦10♦6♦ 21202× the bet
1103♣3♦6♦K♠ 2210♠3♦ 13202× 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
79b3f21b5e1eb79c5671b22a9a6120f7a31b78e8d328976a34f16834d9c1401e
Seed
ab05264629af3c909fd2d3242f991d61adc9d3006fc96a06703c435bd43b123b SHA-256 of "degen.match.seed.v1", a zero byte and the 32 seed bytes is the seed hash.
Bettor's seed
cda2d91978f85e78079d7c494230c7cb
Commitment
Batch 66,554, Merkle root fdc738e5cd3a3903d344abb4d3975e49a1d1607d44215a73af18ca575c2fa170. Recorded by Degen Protocol; on-chain publication is not available yet. See this batch and its Merkle tree
Merkle path
  1. 2c740e2db97b8874c427abf0e8bd9c47729047f690d72d6b3e2b625f3659851b
  2. 313a69577f1ac49b30d476e4eadb5d090969ddced6d05a24a1e5e05eb22f1ca9
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.